(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT)
`Ni
`
`(19) World Intellectual Property Organization _
`International Bureau
`
`‘
`
`
`
`(43) International Publication Date
`13 November 2008 (13.11.2008)
`
`(51) International Patent Classification:
`A47G 19/14 (2006.01)
`
`(21) International Application Number:
`PCT/US2008/062752
`
`(22) International Filing Date:
`
`6 May 2008 (06.05.2008)
`
`(25) Filing Language:
`
`(26) Publication Language:
`
`(30) Priority Data:
`60/916,434
`
`English
`
`English
`
`7 May 2007 (07.05.2007)
`
`US
`
`(71) Applicant (for all designated States except US): THER-
`MODYNE
`FOODSERVICE PRODUCTS,
`INC.
`[US/US]; 4410 New Haven Avenue, Fort Wayne, Indiana
`46803 (US).
`
`(72) Inventors; and
`(75) Inventors/Applicants (for US only): TIPPMANN, JR.,
`Vincent Paul
`[US/US]; c/o Thermodyne Foodservice
`Products, Inc, 4410 New Haven Avenue, Fort Wayne,
`Indiana 46803 (US). TIPPNIANN, Jay Paul [US/US]; do
`
`(54) Title: RADIANT LIQUID HEATING CONTAINER
`
`(10) International Publication Number
`
`WO 2008/137889 A1
`
`(74)
`
`(81)
`
`Thermodyne Foodservice Products, Inc., 4410 New Haven
`Avenue, Fort Wayne. Indiana 46803 (US).
`
`Agent: SLATTERY, James M.; c/o Birch, Stewart, Ko—
`lasch & Birch, LLP, 8110 Gatehouse Road. Suite 100E,
`Falls Church, Virginia 22042 (US).
`
`Designated States (unless otherwise indicated, for every
`kind of national protection available): AE, AG. AL, AM,
`AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA,
`CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE,
`EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID,
`IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, K7,, LA, LC,
`LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN,
`MW, MX. MY, MZ, NA, NG, NI, NO, NZ, OM, PG. PH,
`PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV,
`SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN,
`ZA, ZM, ZW.
`
`(84)
`
`Designated States (unless otherwise indicated, for every
`kind 0/ regionalpratectian available): ARIPO (BW, GH,
`GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM,
`ZW), Eurasian (Ah/I, AZ, BY, KG, K7,, MD, RU, TJ, TM),
`
`[Continued on next page]
`
`
`
`liquid
`(57) Abstract: A radiant
`heating device includes a container
`for holding a liquid. The container
`includes an opening for dispensing
`the fluid and a closed bottom. A
`base member is mounted relative
`to the closed bottom.
`The base
`member is spaced a predetermined
`distance
`relative
`to
`the
`closed
`
`bottom to provide an air gap there
`between.
`The base member
`is
`
`exposed to a heat source wherein
`the base member shields the bottom
`of the container from being in direct
`contact with the heat
`source to
`
`provide a source of radiant heat for
`maintaining a liquid disposed within
`the container at a predetermined
`temperature.
`
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`Published:
`European (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI,
`FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, — with international search report
`NO, PL, PT, RO, SE, SI, SK, TR), OAPI (BF, BJ, CF, CG,
`CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
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`WO 2008/137889
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`PCT/US2008/062752
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`RADIANT LIQUlD HEATING CONTAINER
`
`BACKGROUND OF THE INVENTION
`
`CROSS—REFERENCE TO RELATED APPLICATIONS
`
`[0001]
`
`The present application claims priority under 35 USC 119 to US. Provisional
`
`Patent Application No. 60/916,434 filed on May 7, 2007 the entire contents of which are
`
`hereby incorporated by reference.
`
`BACKGROUND OF THE INVENTION
`
`Field of the Invention
`
`[0002] The present invention relates to a radiant liquid heating container wherein a base
`
`member is mounted relative to the bottom of the container with a predetermined space
`
`providing an air gap between the container and the base for maintaining a liquid disposed
`
`Within the container at a predetermined temperature.
`
`Description of Background Art
`
`[0003] Hilhertofore, a container for maintaining a liquid at a predetermined temperature is
`
`normally exposed directly to a heat source. After the liquid is heated on the heat source for a
`
`certain period of time, the liquid in the container may be burned by the direct contact of the
`
`container relative to the heat source. This is a particular problem with respect to coffee that is
`
`brewed and thereafter exposed directly to a heat source. The heat source makes point contact
`
`with the container to burn certain portions of the coffee.
`
`[0004] More specifically, a liquid product, such as coffee, is maintained in a heated condition
`
`by placing the container holding the liquid directly on a heat source, such as a burner.
`
`Normally,
`
`three points of contact are made between the container and the burner for
`
`conducting the heat of the burner to the container. At the points of contact with the burner,
`
`the container is heated to a very high temperature that results in a burning of the liquid within
`
`the container. When coffee is disposed in the container, the coffee is burned and the liquid
`
`within the container is boiled off to produce a coffee product that is not fit for consumption.
`
`[0005] In addition, a thermos may be used for storing a heated liquid. However, with time the
`
`liquid within the thermos will cool and thus become unsuitable for consumption.
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`SUMMARY AND OBJECTS OF THE INVENTION
`
`[0006] It is an object of an embodiment of the present invention to provide a radiant heater
`
`for maintaining a liquid within a container at a predetennined temperature without adversely
`
`affecting the taste of the liquid.
`
`[0007] It is another object of an embodiment of the present invention to provide a radiant
`
`heater for maintaining a liquid within a container at a predetermined temperature by
`
`displacing the container to form a gap between the container and a base member for heating
`
`the container by use of radiant heat while eliminating the point contact between the container
`
`and the burner.
`
`[0008] These and other objects of the invention are achieved by providing a radiant liquid
`
`heating container that includes a container for holding a fluid with an opening for dispensing
`
`the fluid and a closed bottom. A base member is mounted relative to the closed bottom. The
`
`base member is spaced a predetermined distance relative to the closed bottom to provide an
`
`air gap there between. The base member is exposed to a heat source wherein the base
`
`member shields the bottom of the container from being in direct contact with the heat source
`
`to provide a source of radiant heat for maintaining a liquid disposed within the container at a
`
`predetermined temperature.
`
`[0009] Further scope of applicability of the present invention will become apparent from the
`
`detailed description given hereinafter. However, it should be understood that the detailed
`
`description and specific examples, while indicating preferred embodiments of the invention,
`
`are given by way of illustration only, since various changes and modifications within the
`
`spin't and scope of the invention will become apparent to those skilled in the art from this
`
`detailed description.
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`[0010] The present invention will become more fully understood from the detailed
`
`description given hereinbelow and the accompanying drawings which are given by way of
`
`illustration only, and thus are not limitative of the present invention, and wherein:
`
`[0011] Fig. 1 is a perspective view of a container for heating a liquid;
`
`[0012] Fig. 2 is a perspective view of a base member that is formed to fit the bottom of the
`
`container illustrated in Fig. 1;
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`[0013] Fig. 3 is a perspective view of the base member with a dark surface coating the
`
`interior of the base member;
`
`[0014] Fig. 4 is an exploded View illustrating the container being mounted on the base
`
`member;
`
`[0015] Fig. 5 is a perspective View illustrating the container with the base member being
`
`secured relative thereto;
`
`[0016] Fig. 6 is a cross-sectional view of the container and the base member illustrating the
`
`gap that is formed between the bottom of the container and the base member; and
`
`[0017] Fig. 7 is a cross-sectional view of a metal container with a base member illustrating
`
`the gap that is formed between the bottom of the container and the base member.
`
`DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
`
`[0018] Fig. 1 illustrates a container 10 for holding a liquid. The container 10 includes an
`
`opening 12 for dispensing the liquid and a closed bottom 14. Figs. 2 and 3 illustrate a base
`
`member 20 for mounting relative to the container 10. The base member 20 includes an
`
`interior surface 22 with a circmnferential surface 26 and a closed bottom 24. As illustrated in
`
`Fig. 3, the interior surface may be coated with a non-reflective material 26.
`
`[0019] As illustrated in Figs. 4 and 5, the base member 20 is adapted to be mounted relative
`
`to the closed bottom 14. As illustrated in Fig. 6, the base member 20 is spaced a
`
`predetermined distance 30 relative to the closed bottom 14 to provide an air gap there
`
`between. In one embodiment of the invention, the gap may be 1A of an inch, .625 cm.
`
`[0020] The base member 20 is adapted to be exposed to a heat source, such as an electric
`
`heater with a certain watt/density of heat being supplied to the plate that is mounted on the
`
`heat source. The base member 20 shields the bottom 14 of the container 10 from being in
`
`direct contact with the heat source to provide a source of radiant heat for maintain a liquid
`
`disposed Within said container 10 at a predetermined temperature.
`
`[0021] In an embodiment of the invention, the container 10 may be constructed of glass and
`
`the base member 20 may be constructed of aluminum or any other Suitable metallic material.
`
`[0022] The interior surface 22 of said base member 20 is coated with a non-reflecting surface
`
`26 for enhancing the transmission of radiant heat transmitted to the container 10. The non—
`
`reflecting surface 26 may be black paint or any material for aiding in the transmission of
`
`radiant heat to the container 10.
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`[0023] The base member 20 may be sealed relative to the container 10 for forming a water
`
`proof and air tight gap disposed between the closed bottom 14 of the container 10 and the
`
`inten'or surface 22 of the base member 20. The seal may be constructed of plastic or the seal
`
`may be a silicone seal.
`
`[0024] The base member 20 includes an outer circumferential surface 28 for engaging an
`
`outer circumferential surface 18 of the container 10 at a predetermined point 32. The
`
`predetermined point 32 is displaced upwardly from a bottom portion 24 of the base member
`
`20 to prevent spot heating of a liquid disposed within the container 10.
`
`[0025] In one embodiment of the invention, the base member 20 is removably mounted
`
`relative to the container 10 to permit removal of the base member 20 from the container 10
`
`for cleaning. In addition, spacer members 34, 36 maybe disposed between the base member
`
`20 and the container 10 for maintaining the gap there between.
`
`[0026] As illustrated in Fig. 7, the container 100 may be constructed of metal and the base
`
`member 120 may be constructed of aluminum or any other suitable metallic material.
`
`[0027] The interior surface 122 of said base member 120 is coated with a non—reflecting
`
`surface 126 for enhancing the transmission of radiant heat transmitted to the container 100.
`
`The non-reflecting surface 126 may be black paint or any material for aiding in the
`
`transmission of radiant heat to the container 100.
`
`[0028] The base member 120 may be sealed relative to the container 100 for forming a water
`
`proof and air tight gap disposed between the closed bottom 114 of the container 100 and the
`
`interior surface 122 of the base member 120. The seal may be constructed of plastic or the
`
`seal may be a silicone seal.
`
`[0029] The base member 120 includes an outer circumferential surface 128 for engaging an
`
`outer circumferential surface 118 of the container 100 at a predetermined point 132. The
`
`predetermined point 132 is displaced upwardly from a bottom portion 124 of the base
`
`member 120 to prevent spot heating of a liquid disposed within the container 100.
`
`[0030] The base member 120 illustrated in Fig. 7 may be removably mounted relative to the
`
`container 100 to permit removal of the base member 120 from the container 100 for cleaning.
`
`In addition, spacer members 134, 136 may be disposed between the base member 120 and the
`
`container 100 for maintaining the gap there between.
`
`[0031] The invention permits a liquid disposed with the container 10, 100 to be maintained at
`
`a predetermined temperature by use of radiant heat and not conductive heat. By using radiant
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`heat to maintain a liquid such as coffee at a predetermined temperature the present invention
`
`avoids problems in the prior art wherein the coffee is burned by using conduction to heat at
`
`least three points on the bottom of the container. Normally, if conduction heat is used, the
`
`coffee would be heated to 300 to 500 degrees Fahrenheit at the three points of contact with
`
`the container which will result in a burning of the coffee located in the particular areas in the
`
`container adjacent to the three points of contact. In addition, the conduction heat applied to
`
`the container will result in a boiling off of the water in the coffee which will render the coffee
`
`unfit for consumption. The present invention avoids the problems of the prior art to provide
`
`coffee or soup that is maintained at a predetermined temperature without burning or boiling
`
`off the product to make it unacceptable for consumption.
`
`[0032] The invention being thus described, it will be obvious that the same may be varied in
`
`many ways. Such variations are not to be regarded as a departure from the spirit and scope of
`
`the invention, and all such modifications as would be obvious to one skilled in the art are
`
`intended to be included within the scope of the following claims.
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`WHAT IS CLAIMED IS:
`
`1. A radiant liquid heating container comprising:
`
`a container for holding a liquid, said container including an opening for dispensing the
`
`fluid and a closed bottom; and
`
`a base member adapted to be mounted relative to the closed bottom, said base
`
`member being spaced a predetermined distance relative to said closed bottom to provide an
`
`air gap there between;
`
`said base member being adapted to be exposed to a heat source wherein the base
`
`member shields the bottom of the container from being in direct contact with the heat source
`
`to provide a source of radiant heat for maintain a liquid disposed Within said container at a
`
`predetermined temperature.
`
`2. The radiant liquid heating container according to claim 1, wherein the container is
`
`constructed of glass and the base member is constructed of aluminum.
`
`3. The radiant liquid heating container according to claim 1, wherein an interior
`
`surface of said base member is coated with a non—refl acting surface for enhancing the
`
`transmission of radiant heat transmitted to the container.
`
`4. The radiant liquid heating container according to claim 3, wherein the non—
`
`refleeting surface is black paint.
`
`5. The radiant liquid heating container according to claim 1, wherein the base member
`
`is sealed relative to the container for forming a water proof and air tight gap disposed
`
`between the closed bottom of the container and an interior surface of the base member.
`
`6. The radiant liquid heating container according to claim 5, wherein the seal is
`
`constructed of plastic.
`
`7. The radiant liquid heating container according to claim 5, wherein the seal is a
`
`silicone seal.
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`8. The radiant liquid heating container according to claim 1, wherein the base member
`
`includes an outer circumferential surface for engaging an outer circumferential surface of the
`
`container at a predetermined point, said predetermined point being displaced upwardly from a
`
`bottom portion of the base member to prevent spot heating of a liquid disposed within the
`
`container.
`
`9. The radiant liquid heating container according to claim 1, wherein said base
`
`member is removably mounted relative to said container to permit removal of the base
`
`member from the container for cleaning.
`
`10. The radiant liquid heating container according to claim 1, and further including
`
`spacer members being disposed between said base member and said container for
`
`maintaining the gap there between.
`
`1 1. The radiant liquid heating container according to claim 1, wherein the container is
`
`constructed of metal and the base member is constructed of metal.
`
`12. A radiant liquid heating container comprising:
`
`a container including an opening for dispensing a liquid and a closed bottom; and
`
`a base member mounted relative to the closed bottom, said base member being spaced
`
`a predetermined distance relative to said closed bottom to provide an air gap there between;
`
`said base member being exposed to a heat source wherein the base member shields
`
`the bottom of the container from being in direct contact with the heat source to provide a
`
`source of radiant heat for maintain a liquid disposed within said container at a predetermined
`
`temperature without burning the liquid.
`
`13. The radiant liquid heating container according to claim 12, wherein the container
`
`is constructed of glass and the base member is constructed of aluminum.
`
`14. The radiant liquid heating container according to claim 12, wherein an interior
`
`surface of said base member is coated with a non-reflecting surface for enhancing the
`
`transmission of radiant heat transmitted to the container.
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`15. The radiant liquid heating container according to claim 14, wherein the non—
`
`reflecting surface is black paint.
`
`16. The radiant liquid heating container according to claim 12, wherein the base
`
`member is sealed relative to the container for forming a water proof and air tight gap
`
`disposed between the closed bottom of the container and an interior surface of the base
`
`member.
`
`17. The radiant liquid heating container according to claim 16, wherein the seal is
`
`constructed of plastic.
`
`18. The radiant liquid heating container according to claim 16, wherein the seal is a
`
`silicone seal.
`
`19. The radiant liquid heating container according to claim 12, wherein the base
`
`member includes an outer circumferential surface for engaging an outer circumferential
`
`surface of the container at a predetermined point, said predetermined point being displaced
`
`upwardly from a bottom portion of the base member to prevent spot heating of a liquid
`
`disposed within the container.
`
`20. The radiant liquid heating container according to claim 12, wherein said base
`
`member is removably mounted relativc to said container to permit removal of the base
`
`member from the container for cleaning.
`
`21. The radiant liquid heating container according to claim 12, and further including
`
`spacer members being disposed between said base member and said container for
`
`maintaining the gap there between.
`
`22. The radiant liquid heating container according to claim 12, wherein the container
`
`is constructed of metal and the base member is constructed of metal.
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`
`
`FIG.1
`
`22
`
`I 25
`
`24
`
`FIG.2
`
`25
`
`20
`/\J
`
`
`
`FIG.3
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`”IIIIIIIIJIIII
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`—ll
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`4/4
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`INTERNATIONAL SEARCH REPORT »
`
`lntematlonal applicatlon No
`
`A. CLASSIFICATION o SUBJECT MATTER
`INV. A47619 14
`
`PCT/U32008/062752
`
`According to International Patent Classification (IPC) orto both national classification and IPC
`B. FIELDS SEARCHED
`
`Minimum documentation searched (classification system followed by classification symbols)
`A47G A47J
`
`'
`
`Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched
`
`Electronic data base consulted during the international search (name of data base and. where practical, search terms used)
`
`EPO—Internal, WPI Data
`
`C. DOCUMENTS CONSIDERED TO BE RELEVANT
`
`Category'
`
`Citation of document, with indication where appropriate of the relevant passages
`
`Relevant to claim No.
`
`EP 0 477 669 A (EAGLE FLASK INDUSTRIES
`LTD)
`1 April 1992 (1992- 04-01)
`
`column 13,
`claim 3
`
`line 26 — column 14,
`
`line 4;
`
`GB 2 329 573 A (THE BOC GROUP PLC)
`31 March'1999 (1999-03-31)
`
`'
`
`-
`
`'
`
`page 4,
`
`last paragraph
`
`US 3 809 063 A (HAJNAL STEVEN)
`7 May 1974 (1974—05-07)
`
`figure 1
`
`
`
`1,3—5,8,
`11,12,
`14—16,
`19,22
`
`1,8,9,
`11,12,
`19,20,22
`
`
`
`D Further documents are listed in the continuation of Box C.
`‘ Special categories of cited documents :
`
`'A' document defining the general state of the art which is not
`considered ‘0 be of particular relevance
`.
`E. efifilr‘ggsgumem but published on or aflenhe International
`'L' document which may throw doubts on priority claim(s) or
`which is cited to establish the publication date of another
`citation or other special reason (as specified)
`'0' document referring to an oral disclosure, use, exhibition or
`other means
`“document published prior to the international filing date but
`Iaterthan the priority date claimed
`Date of the actual completion ofthe international search
`
`4 August 2008
`'
`Name and mailing address of the ISA/
`European Patent Office. PE. 5518 Patentlaan 2
`NL — 2280 HV Fliiswiik
`Tel, (+3140) 340—2040. Tx. 31 651 epo nl,
`Fax: (+31—70)340—3016
`Form PCTiISA/Z ID [second sheeti (April 2005)
`
`' I'
`
`A
`
`See patent family annex.
`,
`_
`.
`.
`,
`_
`later document publIshed after the InternatIonaI filing date
`or pnortty date and not In coanIc‘t With the appllcatIon but
`invention
`mod to understand the pnnctple or theory underlymg the
`cannot be considered novel or cannot be considered to
`document of particular relevance. the claimed invention
`involve 'an inventive step when the document is taken alone
`document of particular relevance, the claimed invention
`cannot be considered to involve an inventive step when the
`document is combined with one or more other such docu—
`ments. such combination being obvious to a person skilled
`in the art.
`‘
`document member of the same patent family
`Date of mailing of the international search report
`
`20/08/2008
`Authorized officer
`
`-
`Remhhardt ! Otto
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`-
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`1 Patent document
`cited in search report
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`Publication
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`Patent family
`member(s).
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`PCT/U52008/062752
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`, Publication ,
`date
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`-
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`EP 0477669
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`A
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`01-04-1992
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`CA
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`2051039 A1
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`.11_3-03-1992
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`'Intematlonal appllcallon No
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`I
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`Form PCT/ISA/210 (patenl family annex) (April 2005)
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`PGR2021-00085
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`Pelican EX1026 Page 16
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`PGR2021-00085
`Pelican EX1026 Page 16
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