`
`PATENTS
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`Confirmation No:
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`4517
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`Applicant:
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`Miller, Gary
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`Atty. Docket:
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`96172000004
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`Application No.:
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`12/698,700
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`Examiner:
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`Pezzuto, Robert Eric
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`Eiled:
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`Title:
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`February 2, 2010
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`Art Unit:
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`3671
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`EULLY AUTOMATIC COUPLER EOR EXCAVATOR ARM
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`AMENDMENT
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`Mail Stop Amendment
`Commissioner for Patents
`PO BOX 1450
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`Alexandria, VA 22313/1450
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`Sir:
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`Applicant requests one/month eXtension of time to eXtend the deadline for responding
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`to the Office Action dated April 8, 2011 fromjuly 8, 2011, up to an including August 8, 2011.
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`Payment for the EXtension of Time is being with the filing of this paper. The Commissioner is
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`hereby authorized to charge any deficiency and credit any overpayment to Deposit Account No.
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`033875.
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`In response to the Office Action mailed April 8, 2011, please amend the above/identified
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`application as follows:
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`87616371
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`Page 1 0f 13
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`CATERPILLAR EXHIBIT 1008
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`Page 1 of 13
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`CATERPILLAR EXHIBIT 1008
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`
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`CLAIMS
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`Please amend claim 35 as follows. Please also cancel claims 38/42 and add new claims
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`44/47.
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`1.
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`(Original) A coupler having a top half for attaching to an end of an excavator arm
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`of an excavator and a bottom half for attaching to an accessory; wherein:
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`the bottom half comprises:
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`a first jaw having an opening pointing generally towards the front end of the coupler and
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`a second jaw having an opening pointing generally downwards with respect to the coupler;
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`a first latching mechanism associated with the first jaw; and
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`a second latching mechanism associated with the second jaw, the second latching
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`mechanism being powered for movement between an open position and a closed position,
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`wherein the first latching mechanism has an arm eXtending therefrom and towards the second
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`latching mechanism, whereby the second latching mechanism can hold the first latching
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`mechanism in an open position when it is in its own open position; and
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`the coupler further comprising:
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`a blocking mechanism that is independent of the first latching mechanism, and being for
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`selectively blocking the second latching mechanism in its latching position, the blocking
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`mechanism being operable between a blocking position and an unblocking position by a
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`separate drive means, or by the influence of gravity, operation by the influence of gravity
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`comprising attaining a blocking position when the top side of the coupler is pointing generally
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`upwards and an unblocking position when the bottom side of the coupler is pointing generally
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`upwards.
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`2.
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`(Original) The coupler of claim 1, wherein the first latching mechanism
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`comprises a finger or block that eXtends in a different direction to the arm, and which provides
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`an at least partial blockage of the opening of the first jaw when the first latching mechanism is
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`in a jaw/closing position.
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`3.
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`(Original) The coupler of claim 1, wherein the arm of the first latching
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`mechanism extends down one side of an internal space of the coupler.
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`4.
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`(Original) The coupler of claim 1, wherein the blocking mechanism comprises a
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`member that extends down one side of an internal space of the coupler.
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`5.
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`(Original) The coupler of claim 1, wherein the arm of the first latching
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`mechanism extends down one side of an internal space of the coupler and the blocking
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`mechanism comprises a member that extends down one side of the internal space of the coupler,
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`the arm and member extending down different sides of the internal space of the coupler.
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`6.
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`(Original) The coupler of claim 1, wherein an second latching member is
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`powered by a hydraulic ram that is located down the centre of the internal space of the coupler.
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`7.
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`(Original) The coupler of claim 1, wherein the blocking mechanism shares a
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`common pivotal axis with the second latching mechanism’s actuator.
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`8.
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`(Original) The coupler of claim 1, wherein the first latching mechanism is defined
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`by a first pivotal latch.
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`9.
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`(Original) The coupler of claim 1, wherein the second latching mechanism is
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`defined by a second pivotal latch.
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`10.
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`(Original) The coupler of claim 1, wherein a latching member of the first latching
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`mechanism extends into the jaw, and has a greater width than the arm of the first latching
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`mechanism.
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`11.
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`(Original) The coupler of claim 10, wherein the width of the latching member is
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`at least approximately a third of the width of the front jaw.
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`12.
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`(Original) The coupler of claim 1, wherein a part of the first latching mechanism
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`is visible in the jaw when the first latching mechanism is in a jaw/closing position, and the part
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`is painted in a high/visibility colour, or in a contrasting colour to the jaw, for making it more
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`readily visible from the cab of the excavator through the opening of the jaw.
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`13.
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`(Original) The coupler of claim 1, wherein a free end of the excavator arm has an
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`increased lateral width relative to the rest of the arm to provide a greater mass at the free end.
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`14.
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`(Original) The coupler of claim 1, wherein the blocking member has a width that
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`generally corresponds to the width of one of the arm and the free end of the arm.
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`15.
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`(Original) The coupler of claim 1, wherein the second latching mechanism
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`comprises a pivoting latching hook.
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`16.
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`(Original) The coupler of claim 15, wherein a rear surface of the latching hook
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`has steps provided thereon for providing adjustability for the blocking mechanism, whereby a
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`plurality of different accessories, each with different pin spacings, can be accommodated by the
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`coupler.
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`17.
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`(Original) The coupler of claim 16, wherein the steps on the rear surface of the
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`hook are down just one flank of that surface of the hook, the hook may have two such flanks,
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`with the other flank being adapted for selectively engaging the first latching mechanism.
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`18.
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`(Original) The coupler of claim 1, wherein the arm of the first latching
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`mechanism has a cut/out in its underside for accommodating the structure of the front jaw and
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`an attachment pin of an accessory, whereby that cut/out can rest against the top of the structure
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`of the front jaw when the first latching mechanism is in a jaw/closing position.
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`19.
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`(Original) The coupler of claim 1, wherein the arm has an indentation in a top
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`wall thereof for engaging a member of the frame of the coupler.
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`20.
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`(Original) The coupler of claim 1, wherein the first latching mechanism has a face
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`that is adapted to face towards an attachment pin of an accessory, when the accessory pin is
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`located fully within the front jaw, that surface eXtending generally downwardly into the jaw to a
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`point at least one/third of the way across the opening.
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`21.
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`(Original) The coupler of claim 1, wherein a hinge aXis of the first latching
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`member is located above the line of the reaction force between an attachment pin of an
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`accessory and the pin facing/engaging surface of the latching member in the event of an
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`attempted removal of the pin from the front jaw, once the first latching mechanism is in its jaw/
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`closing position.
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`22.
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`(Original) A coupler comprising two jaws and a latch for each jaw, one of the
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`latches being powered for movement between a latching position and a non/latching position,
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`and being associated with a blocking mechanism that is remotely movable between a blocking
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`position and non blocking position, and the other latch being independent of the blocking
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`mechanism, but being also remotely moveable between a latching position and a non/latching
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`position, wherein the powered latch, in its non/latching position, can maintain both the
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`blocking mechanism in its non blocking position and the other latch in its non/latching
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`position, irrespective of the orientation of the coupler.
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`23.
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`(Original) The coupler of claim 22, wherein the blocking mechanism is gravity
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`operated.
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`24.
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`(Original) The coupler of claim 22, wherein the opening of a downwardly facing
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`one of said jaws has a height / measured in the longitudinal direction of the coupler / of at least
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`15X the height / measured in the height direction of the coupler / of the opening of the other jaw.
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`25.
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`(Original) The coupler of claim 22, wherein the blocking mechanism is spring
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`biased towards a blocking position by a spring member that is adapted to engage against a
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`portion of an excavator arm during certain normal conditions of use, but not in the crowd
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`position.
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`26.
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`(Original) The coupler of claim 22, wherein a front one of the jaws has one of a
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`ridge and lip, and/or one of a dip and groove, provided in an upper wall of its profile.
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`27.
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`(Original) The coupler of claim 26, wherein the upper wall of the front jaw’s
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`profile eXtends further forwards, relative to the frame of the coupler, than the lower wall of that
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`profile so as to overhang the lower profile.
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`28.
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`(Original) The coupler of claim 27, wherein the lip or ridge, and/or dip or groove,
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`is located in the overhanging area of that upper wall.
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`29.
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`(Original) The coupler of claim 28, wherein the lip or ridge, and/or dip or groove,
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`is a lip or ridge, and the gap between the bottom of the ridge or lip and a free end of the lower
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`wall of the profile of the front jaw has a length that is no less than the distance between that
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`lower wall and that upper wall when measured diametrically therebetween.
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`30.
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`(Original) The coupler of claim 22, wherein the front jaw has one of a ridge and a
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`lip, and/or one of a dip and a groove, provided in a lower wall of its profile.
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`31.
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`(Original) The coupler of claim 30, wherein ridge or lip, and/or a dip or groove
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`provides an outer lip against which the attachment pin can hit, for stopping further exiting of
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`the pin from the jaw, in the event of the attachment pin starting to slip out of the front jaw.
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`32.
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`(Original) The coupler of claim 31, wherein the ridge or lip, and/or a dip or
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`groove is a dip or groove, and its depth is between 0.3x and 0.1x the diametric height of the jaw.
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`33.
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`(Original) An excavator fitted with a coupler according to claim 22.
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`34.
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`(Original) An excavator fitted with a coupler according to claim 1.
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`35.
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`(Currently Amended) A method of coupling an accessory to a coupler, the
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`method comprising:
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`a) providing an excavator with a powered excavator arm having a coupler on an end
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`thereof, the coupler comprising two jaws and a latch for each jaw, one of the latches being
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`powered for movement between a latching position and a non/latching position, and being
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`associated with a blocking mechanism that is remotely movable between a blocking position
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`and non blocking position, and the other latch being independent of the blocking mechanism,
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`but being also remotely moveable between a latching position and a non/latching position;
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`b) opening the jaw with the powered latch;
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`[[b]]c) providing an accessory with two attachment pins thereon sized and spaced to fit
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`into the two jaws of the coupler;
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`[[c]]d) powering the excavator arm to manipulate the coupler to locate a first
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`attachment pin of the accessory into the jaw associated with the other latch;
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`[[d]]e) powering the excavator arm to curl the coupler relative to the accessory to locate
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`the second attachment pin into the opened jaw; and
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`[[e]]f) powering the powered latch to engage the powered latch against the second
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`attachment pin to secure it within that now closed jaw.
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`36.
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`(Original) The method of claim 35, wherein the powered latch is powered in step
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`b) while the coupler is at least partially inverted, the blocking mechanism and other latch being
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`gravity operated such that they move to non blocking and open positions, respectively, as the
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`coupler is moved into that at least partially inverted orientation.
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`37.
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`(Original) A method of decoupling an accessory from a coupler, the method
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`comprising:
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`a) providing an excavator with a powered excavator arm having a coupler on an end
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`thereof, the coupler comprising two jaws and a latch for each jaw, one of the latches being
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`powered for movement between a latching position and a non/latching position, and being
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`associated with a blocking mechanism that is remotely movable between a blocking position
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`and non blocking position, and the other latch being independent of the blocking mechanism,
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`but being also remotely moveable between a latching position and a non/latching position;
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`b) providing an accessory with two attachment pins thereon fitted into the two jaws of
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`the coupler;
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`c) rotating the coupler and accessory into a crowd position for at least partially inverting
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`the coupler;
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`d) opening the jaw having the powered latch;
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`e) powering the excavator arm to manipulate the coupler back from its crowd position
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`to position the accessory on hard standing, such as the ground; and continuing to power the
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`excavator arm to guide the coupler off the accessory, the two latches now being open.
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`38.
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`Cancelled
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`39.
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`Cancelled
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`40.
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`Cancelled
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`41.
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`Cancelled
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`42.
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`Cancelled
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`43.
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`(Original) The coupler of claim 1, wherein the front jaw has a ridge or lip
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`provided in an upper wall of its profile, wherein the upper wall of the front jaw’s profile eXtends
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`further forwards, relative to the frame of the coupler, than the lower wall of that profile so as to
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`overhang the lower profile, wherein the lip or ridge is located in the overhanging area of that
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`upper wall, and wherein the gap between the bottom of the ridge or lip and the free end of the
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`lower wall of the profile of the front jaw has a length that is no less than the distance between
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`that lower wall and that upper wall when instead measured diametrically therebetween.
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`44.
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`(New) A coupler for attaching an excavator arm and an accessory, comprising:
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`a first jaw having an opening pointing generally towards the front end of the coupler;
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`a second jaw having an opening pointing generally downwards with respect to the
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`coupler;
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`a first latching mechanism associated with the first jaw;
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`a second latching mechanism associated with the second jaw, the second latching
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`mechanism being selectively moveable between an open position and a closed position; and
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`a blocking mechanism separate from the first latching mechanism and movable between
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`a blocking position preventing the second latching mechanism from moving from its closed
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`position and a non/blocking position permitting the second latching mechanism to move
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`between the closed and open positions.
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`45.
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`(New) The coupler of claim 44, wherein the first latching mechanism pivots
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`about a first pivot point and the blocking mechanism pivots about a second pivot point,
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`different from the first pivot point.
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`46.
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`(New) The coupler of claim 44 wherein gravity moves the blocking mechanism
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`from the blocking position to the non/blocking position.
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`47.
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`(New) The coupler of claim 46, wherein when a top side of the coupler is
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`pointing generally upwards, the blocking mechanism moves to the blocking position and
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`wherein when a bottom side of the coupler is pointing generally upwards, the blocking
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`mechanism moves to the non/blocking position.
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`REMARKS/ARGUMENTS
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`Applicant requests favorable consideration of the application in view of the preceding
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`amendments and the following remarks.
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`Claims 1/37 and 4347 are pending in the application with claims 1, 22, 35, 37, and 44
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`being the independent claims. By this paper claim 35 has been amended, claims 3842 have been
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`cancelled and claims 4447 have been added. Support for the amendments and for the new
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`claims may be found in the application as originally filed.
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`All claims were rejected as anticipated by W02008/O31590 (Hill). Applicant traverses
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`this rejection.
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`Hill shows a coupler for excavators that includes a blocking member that is preferably a
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`bar 40 having a pivot end 42 and a jaw 44 which closes an open mouth of a recess 20 to embrace
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`a pin 24 located in the recess 20. Thus, in Hill, the blocking member is integral with a jaw that
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`acts as a latching mechanism.
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`Hill’s arrangement is different from the present invention. In independent claim 1, a
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`blocking mechanism is independent of the first latching mechanism and selectively block the
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`second latching mechanism. In independent claims 22, 35, and 38, a coupler includes two jaws
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`and a latch for each jaw, one of the latches being powered for movement and being associated
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`with a blocking mechanism and the other latch is independent of the blocking mechanism. In
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`independent claim 44, a blocking mechanism is separate from a first latching mechanism. Hill
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`fails to show each of these features of the independent claims at least because it does not show a
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`blocking mechanism separate from a latch; in Hill the blocking mechanism is part of the latch.
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`For the foregoing reasons, Applicant submits that the independent claims are patentable
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`over Hill. Favorable reconsideration and an early Notice of Allowance are requested.
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`87616371
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`Page 11 of 13
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`The remaining claims depend from one of the independent claims and are allowable by
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`Virtue of this dependency and for reciting other patentable features of the invention. Applicant
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`requests favorable and independent consideration of the dependent claims.
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`Applicant’s below/signed attorney may be reached by telephone at (585) 232/6500 with
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`any questions regarding the application. All written correspondence should continue to be
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`directed to the address of record on file for this application.
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`87616371
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`Dated:
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`August 8, 2011
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`Respectfufly submitted,
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`W 7 SEW/M
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`MichaeI]. Didas, Registration No. 55,112
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`Harter Secrest & Emery LLP
`1600 Bauseh 6g Lomb P1aee
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`Rochester, New York 14604
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`Telephone: 5852326500
`Fax: 5852322152
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