C. E. CHURCH
`C. E. CHURCH
`VALVE
`
`2,756,960
`2,756,960
`
`2 Sheets-Sheet 1
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`July 31, 1956
`July 31, 1956
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`Filed Nov. 3, 1953
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`Carro// E. Church
`INVENTOR.
`
`BY
`
`ATTORNEY
`
`Vulcan
`Ex. 1028
`Page 1 of 4
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`

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`July 31, 1956
`July 31, 1956
`
`Filed Nov. 3, 1953
`
`C. E. church
`C. E. CHURCH
`VALVE
`
`2,756,960
`2,756,960
`
`2 Sheets-Sheet 2
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`2----
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`£ 2
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`Carro// E. Churcf?
`INVENTOR.
`
`BY
`
`a#f
`
`ATTORNEY
`
`Vulcan
`Ex. 1028
`Page 2 of 4
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`

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`United States Patent Office
`
`2,756,960
`Patented July 31, 1956
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`1.
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`2,756,960
`WALVE
`Carrol E. Church, Houston, Tex.
`Application November 3, 1953, Serial No. 389,986
`3 Claims. (CI. 251-161)
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`t extended end of the reduced portion 14 of the plug 10,
`outside of the housing 1. A suitable stop means, as the
`set screw 22 mounted in the housing:1, and the slot 23
`in the collar. 21, may be provided to limit the rotation
`of the plug. 10, and may be aligned to place the port. 11
`in alignment with the ports. 3, 3-, when the screw, 22 is
`at one extremity of the slot 23, and a ninety degree turn
`away from alignment with the said ports. 3, 3, when at
`, the other extremity of the slot 23.
`Suitable wedge shaped slots are formed in the housing
`O
`... 1 in the face of the chamber 4 in which suitable sealing
`means formed of a relatively hard-resilient material, such
`as neoprene, may be molded. The sealing means may be
`molded to form the annular seals 25, 25 and the longi
`tudinal seals 26, 26 in a single integral mold, with the
`extended margins of the seals bearing against the plug. 10.
`When the plug. 10 is inserted into the chamber 4, and
`the collar 7 secured in the housing 1, the plug 10 is ad
`justed to the desired position by means of the member 18
`and the lock nut, 20 moved into locking position to main
`tain the plug in the selected position, leaving sufficient dis
`tance between the end of the plug. 10 and, the inside face
`of the shoulder 19 to permit the quarter rotation of the
`plug 10. When the plug 10 is moved to open position,
`with the port 11 aligned with the ports 3, 3 the plug 10
`moves upwardly on the member 18, the threads on the
`lower end of said member being of a counterpitch, as
`opposed to the pitch of the threads on the upper portion
`of the member 18, the threads on the upper portion being
`preferably standard right hand threads, and the threads
`of the lower portion being preferably left hand threads,
`so that the movement of the plug 10 into open position
`will not loosen the member 18 from the lock nut 20.
`When it is desired to again close the valve, the plug 10
`is rotated by means of the wrench receiving member 15,
`in the opposite direction, until stopped by the stop means
`22, and the plug 10 will travel downwardly in the cham
`ber 4, increasing the pressure of the plug against the
`sealing means 25, 26.
`The bore 24, in the collar 7, and the orifice 9 in the
`housing 1, form means for the axial alignment of the plug
`10, the reduced ends 12, 14 being machined to fit snugly
`in said bore and orifice so that the flow pressure of the
`fluid flowing through the conduits 3, 3 will not tilt the
`plug 10, and thus disturb the uniformity of the pressure
`on the sealing means 25, 26, and permit the leakage of
`fluid past the sealing means.
`While the foregoing is considered a preferred form of
`the invention, it is by way of illustration only, and the
`broad principle of the invention will be defined by the
`appended claims.
`What I claim is:
`1. In a valve, having means for increasing the pressure
`seal upon closing of the valve comprising a valve housing
`having a transverse flow port therethrough, means in said
`flow port for receiving a fluid conduit, a plug chamber in
`said housing having tapered side walls, a plug mounted
`in said chamber having a transverse flow port there
`through and having tapered side walls, the ends of said
`plug being reduced and extending through said housing,
`maintaining the plug in axial alignment annular and ver
`tical integral resilient sealing means mounted in said
`chamber and bearing against said plug completely inclos
`ing said flow port in said housing and plug, said plug hav
`ing an internally threaded bore in one end, means for the
`vertical movement of said plug simultaneously with the
`opening and closing of the valve comprising an adjusting
`member having external threads pitched in one direction
`on one end and external threads pitched in the opposing
`direction on the other end and an annular flange between
`said threaded ends for the initial set of compression of
`the plug against said resilient sealing means, said member
`
`This invention relates to new and useful improvements
`in a valve.
`It is an object of this invention to provide a valve for
`use in fluid conduits containing gritty materials, such as
`drilling mud and the like, having novel means for sealing
`20
`the valve.
`It is another object of the invention to provide a mud
`valve having novel means for increasing and decreasing
`pressure on the sealing means as the valve plug is moved
`into and out of open position.
`It is still another object of the invention to provide
`25
`a valve for fluid conduits having novel means for ad
`justing the pressure of the valve plug against the sealing
`means and maintaining said plug in the desired position
`in the valve housing.
`With the above and other objects in view, the inven
`tion has particular relation to certain novel features of
`construction, operation and arrangement of parts more
`particularly described in the following specification, and
`illustrated in the accompanying drawings, wherein:
`Figure
`is a side elevational view, in cross section.
`Figure 2 is an end view, in cross section, taken on the
`line 2-2 of Figure 1.
`Figure 3 is an end view, in cross section, taken on the
`line 3-3 of Figure 1, and
`Figure 4 is an end view, taken on the line 4-4 of Fig
`tre 1.
`Referring now more particularly to the drawings, the
`numeral
`designates a housing formed of suitable rigid
`material having the internally threaded conduit receiving
`ports 2, 2 which terminate in the outwardly flared ports
`3, 3.
`The housing
`has the transverse tapered chamber 4
`which is enlarged at one end forming the shoulder 5 and
`internally threaded as at 6 to receive the collar 7. Said
`chamber 4 is reduced at the opposite end, forming the
`shoulder 8 and the orifice 9.
`A valve plug 10 having a port 11 extending transversely
`therethrough, formed of a rigid material, is shaped to fit
`in the chamber 4, having the side walls thereof tapered
`55
`and having the reduced extension 12 at one end in which
`an internally threaded axial bore 13 is formed and hav
`ing the opposing end 14 reduced to fit snugly in the orifice
`9 and having suitable wrench receiving means 15 extend
`ing out of the housing .
`Suitable sealing means, such as the groove and O-ring
`27 may be provided in the inside face of the orifice 9 as
`an auxiliary sealing means.
`The collar 7 is provided with the inwardly extended
`shoulder 6 and with suitable auxiliary sealing means, as
`the grooves and O-rings 17, 17.
`An externally threaded adjusting member 18, having
`the flange 19 approximately midway its ends is adapted
`to be received by the internally threaded axial bore 13
`in the plug 10. The flange 9 will abut against the shoul
`der 16 of the collar 7 and a suitable locking nut as 20 will
`anchor the member 18 in position in the collar 7.
`A suitable retaining collar 21 may be welded to the
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`Vulcan
`Ex. 1028
`Page 3 of 4
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`

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`2,756,960
`3
`being mounted at one end in said internally threaded
`bore in said plug the other end extending through said
`housing, said flange bearing against the inside wall of said
`housing and having a locking nut at said extended end.
`2. In a valve, a valve housing having a conical shaped
`plug chamber, a conical shaped plug in said chamber hav
`ing a flow way therethrough, said plug having reduced
`axial extensions and having an actuating nut on one end
`and an internally threaded socket in the other end, an ad
`justing member mounted in said housing having oppositely
`10
`directed threads at each end, one end of said nut extending
`into said socket in said plug and the other end of said
`adjusting member having a lock nut mounted thereon
`and a flange between said threaded ends which abuts the
`inside wall of said housing, integral vertical and annular
`resilient packing means mounted in said plug chamber
`completely inclosing said flow way and bearing against
`Said plug.
`3. In a valve, a valve housing, inlet and outlet ports
`in said housing, a plug chamber in said housing between
`20
`said ports having tapered side walls, a tapered plug hav
`ing a flow way therethrough mounted in said chamber,
`said plug having a reduced axial extension at each end,
`one of said extensions extending through the said housing
`and terminating in an actuating member, the other of
`said extensions having an internally threaded axial socket,
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`4.
`an adjusting member mounted in said housing having an
`annular flange midway the respective ends thereof and hav
`ing oppositely pitched external threads adjacent said
`flange, said adjusting member having one end extended
`into said socket and said flange bearing against the inside
`wall of said housing and a locking nut on the other end
`maintaining said member immovably mounted on said
`housing, said plug rotating in said housing to bring the
`flow way into and out of alignment with the inlet and
`outlet ports and moving vertically on said adjusting mem
`ber as it rotates.
`References Cited in the file of this patent
`UNITED STATES PATENTS
`Winslow --------------- Aug. 17, 1858
`DeWrance -------------- Nov. 4, 1879
`Morrison --------------- July 7, 1891
`Bratt ------------------ Dec. 31, 1895
`Farnan ---------------- Feb. 22, 1910
`Bolton ----------------- Jan. 9, 1917
`Dyck ------------------ June 17, 1930
`Hinrichs --------------- Oct. 28, 1952
`FOREIGN PATENTS
`Great Britain ---------------- of 1918
`Great Britain ---------------- of 1919
`
`21,237
`221,2S8
`455,347
`552,199
`950,382.
`1,211,392
`1,765,139
`2,615,672
`
`113,559
`124,251
`
`Vulcan
`Ex. 1028
`Page 4 of 4
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