US3922879A - Portable refrigerated work holder - Google Patents

Portable refrigerated work holder Download PDF

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Publication number
US3922879A
US3922879A US468253A US46825374A US3922879A US 3922879 A US3922879 A US 3922879A US 468253 A US468253 A US 468253A US 46825374 A US46825374 A US 46825374A US 3922879 A US3922879 A US 3922879A
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United States
Prior art keywords
container
tub
planar member
refrigerant substance
planar
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Expired - Lifetime
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US468253A
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George R Arnold
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SILVERADO INDUSTRIES
SILVERADO INDUSTRIES Inc
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SILVERADO INDUSTRIES
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2303/00—Details of devices using other cold materials; Details of devices using cold-storage bodies
    • F25D2303/08—Devices using cold storage material, i.e. ice or other freezable liquid
    • F25D2303/083—Devices using cold storage material, i.e. ice or other freezable liquid using cold storage material disposed in closed wall forming part of a container for products to be cooled
    • F25D2303/0831—Devices using cold storage material, i.e. ice or other freezable liquid using cold storage material disposed in closed wall forming part of a container for products to be cooled the liquid is disposed in the space between the walls of the container
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2303/00—Details of devices using other cold materials; Details of devices using cold-storage bodies
    • F25D2303/08—Devices using cold storage material, i.e. ice or other freezable liquid
    • F25D2303/084—Position of the cold storage material in relationship to a product to be cooled
    • F25D2303/0845—Position of the cold storage material in relationship to a product to be cooled below the product
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/809—Holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/812—Trays

Definitions

  • the invention relates to refrigeration apparatus and more particularly to a portable apparatus for maintaining a working surface at a refrigerated temperature.
  • the above object is achieved by providing a work surface in immediate contact with a closed refrigerated container nested within an insulated tub. Refrigeration is maintained in the closed container by a refrigerant substance therein which substantially fills the container.
  • the refrigerant is preferably a frozen material which has heat of fusion approximately equal to that of water, or preferably greater.
  • FIG. 1 is a perspective view of the apparatus of the present invention.
  • FIG. 2 is an exploded constructional view of the apparatus, with cutaway sections of two components.
  • FIG. 1 shows the portable refrigerated work holder 11 of the present invention.
  • a work surface 13 is an insulated or heat conductive planar member 13 which is held in place by a lip 15 of a container beneath the planar member.
  • An insulated tub 17 holds the container and has a flap upper rim 19.
  • Planar member 13 may be seen to reside on top of a first closed container 21. Note that when the closed container 21 is nested within insulated tub 17, as in FIG. 1, the upper surface 23 effectively closes the tub since the area of upper surface 23 is greater than the cross-sectional area of container 21 which permits the body of container 21 to fit within tub 17 except for the upper surface 23 which overlaps a circumferential region of the flat upper rim 19 of tub 17.
  • Lip 15 is connected to container 21 and extends upwardly with respect to the upper surface 23. Lip 15 provides a means for laterally positioning planar member 13 which has a thickness such that approximately half the thickness of planar member 13 abuts the lip 15. i
  • Container-21 has a refrigerant substance 25 enclosed therein.
  • the refrigerant material does not completely occupy the plenum of container 21, but some space is left for the expected thermal expansion of the refrigerant substance 25 upon cooling.
  • the refrigerant substance 25 is any material which has a relatively large heat of fusion when frozen. Since ice has a relatively high heat of fusion, it is a preferable refrigerant substance. It is desired to keep the refrigerant substance from leaking and for this purpose it is gelatinized.
  • Various forms of gelatinized refrigerants comprising principally water are available. -A typical substance comprises 15 parts water, Zparts gelatinized starch dispersed in the water and 1 part borax. Such refrigerants and the method of preparing them are disclosed in U.S. Pat. Nos. 2,800,454 and 2,800,455.
  • a preferred method is to have the bottom side walls and lip 15 made of one piece ofv plastic material and upper surface 23 of another piece. Refrigerant is then placed in the lower portion of container 21, leaving room for expansion, and then the upper surface 23 is cemented into place.
  • Insulated bag 17 is seen to include insulation material 29 extending around the sides and bottom of tub 17.
  • tub 17 is filled with an insulation material 29 comprising liquid polyurathane foam insulation, or the like, which rapidly expands and solidifies to the limit of the inside walls of container 26.
  • insulation material 29 comprising liquid polyurathane foam insulation, or the like, which rapidly expands and solidifies to the limit of the inside walls of container 26.
  • Base 37 is cemented to tub 17 shortly after the insulation is inserted in tub 17.
  • Tub 17 is held in a fixture, like a vise, until the insulation has hardened. It is desirable to achieve maximum insulation density. Therefore, the above assembly procedure is intended to preclude formation of large air cells in the insulation material and to achieve high density of the insulation material.
  • Alternate methods of forming high density insulation material 29 may also be used. For example, material 29 may be formed externally, allowed to harden and then inserted later.
  • the upper surface of tub 17 is seen to include first and second opposed depressions, 31 and 33, which face container 21 when it is in position.
  • the depressions are of such a size and shape that human fingers may easily enter for grasping container 21.
  • a third depression 35 extends along the length of upper rim 19 for holding tools.
  • container 21 is placed in a refrigerator capable of changing the phase of the refrigerant substance 25 from its liquid phase to a solidified phase, i.e., freezing the refrigerant substance. It is preferred that the planar member 13 be in place during the freezing operation. Once the refrigerant substance is frozen, it is positioned in insulated tub 17. The relatively large heat of fusion of the refrigerant substance will maintain planar member 12 in a refrigerated condition for a relatively long period of time.
  • Multiple closed containers identical to container 21, may be similarly frozen so that when the refrigerant substance in a first container reverts to the gel phase, a second frozen container, with a cold planar member, may be substituted.
  • a refrigerated work holder comprising,
  • a closed container nestable within said tub, said container having an upper surface which closes said tub and further having a refrigerant substance therein which substantially fills said container, said refrigerant substance having a heat of fusion at least as great as that of ice, said upper surface having an area greater than the lateral cross-section of said container.
  • the apparatus of claim 1 further defined by an insulative planar member and means for registering said insulative planar member in planarcontact with said said heat conductive planar member in planar contact with said upper surface.
  • said insulated tub has a flat upper rim upon which the upper surface of said container is seated, said rim having first and second opposed depressions facing said container for grasping said container.
  • a refrigerated work holder comprising,
  • a closed container having a volumetric shape which may occupy the volume of a tub, said container having an upper work surface,
  • planar member disposed in contact with said work surface and means for aligning said planar member with said work surface.

Abstract

A refrigerated work holding system wherein refrigeration is supplied by a cooled substance within a closed container immediately below a work surface. The container is nested within an insulated tub, which maintains thermal insulation for the cooled container.

Description

United States Patent Arnold Dec. 2, 1975 I PORTABLE REFRIGERATED WORK 2.767.563 10/1956 PlCilSClil 62/457 HOLDER 3,130,288 4 1964 Monaco 62/457 3,255,607 6/1966 Bair 62/457 [75} Inventor: George R. Arn ld, Napa. Calif. 3,383,880 5/1968 Peters 62/457 Assigneez Silverado Industries, Inc. p 3,802,220 4/1974 Pompo 62/457 Calif. a Primary Examin erWilliam J. Wye 22 Fl (1: M 1 l e ay 9 1974 Attorney, Agent, or Firm-Thomas Schneck, Jr. [211 App]. No; 468,253
[521 US. Cl. 62/458; 62/457; 62/430; [57] ABSTRACT 51 1 C1 62/257; 62/437; 12 A refrigerated work holding system wherein refrigeralssl 5. tion is pp d y a Cooled Substance i hi a l d I l 0 earc 6 /53 32/39 container immediately below a work surface. The con- 62/257 437 tainer is nested within an insulated tub, which mainl56! References cited tains thermal insulation for the cooled container.
UNITED STATES PATENTS Howard 32/39 9 .Claims, 2 Drawing Figures us. Patent Dec. 2, 1975 3,922,879
PORTABLE REFRIGERATED WORK HOLDER BACKGROUND OF THE INVENTION 1. Field v The invention relates to refrigeration apparatus and more particularly to a portable apparatus for maintaining a working surface at a refrigerated temperature.
2. Prior Art In the practice of dentistry, there are many materials which are mixed by dentists immediately prior to use. Many of these materials lose their desirable properties upon exposure to elevated temperatures. For-example, certain adhesives and tooth filling materials begin to harden upon exposure to air and such hardening may only be reduced by limiting the exposure to air and by lowering the temperature to slow the hardening reaction.
Apart from dentistry, catalytic adhesives have been developed which are mixed immediately before using. Once mixing has occurred, certain of these adhesives tend to immediately harden or set. Once this process occurs, the adhesives lose some of their desirable properties. This degradation canbe retarded by providing refrigeration for the mixed adhesive.
It is therefore an object of the invention to develop a compact apparatus for refrigerating a work surface for materials which would deteriorate upon exposure to environmental factors at ambient temperatures.
SUMMARY OF THE INVENTION The above object is achieved by providing a work surface in immediate contact with a closed refrigerated container nested within an insulated tub. Refrigeration is maintained in the closed container by a refrigerant substance therein which substantially fills the container. The refrigerant is preferably a frozen material which has heat of fusion approximately equal to that of water, or preferably greater.
DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of the apparatus of the present invention.
FIG. 2 is an exploded constructional view of the apparatus, with cutaway sections of two components.
DESCRIPTION OF THE. PREFERRED EMBODIMENT FIG. 1 shows the portable refrigerated work holder 11 of the present invention. A work surface 13 is an insulated or heat conductive planar member 13 which is held in place by a lip 15 of a container beneath the planar member. An insulated tub 17 holds the container and has a flap upper rim 19.
The detailed structure of the invention can be seen more clearly with reference to FIG. 2. Planar member 13 may be seen to reside on top of a first closed container 21. Note that when the closed container 21 is nested within insulated tub 17, as in FIG. 1, the upper surface 23 effectively closes the tub since the area of upper surface 23 is greater than the cross-sectional area of container 21 which permits the body of container 21 to fit within tub 17 except for the upper surface 23 which overlaps a circumferential region of the flat upper rim 19 of tub 17. Lip 15 is connected to container 21 and extends upwardly with respect to the upper surface 23. Lip 15 provides a means for laterally positioning planar member 13 which has a thickness such that approximately half the thickness of planar member 13 abuts the lip 15. i
Container-21 has a refrigerant substance 25 enclosed therein. The refrigerant material does not completely occupy the plenum of container 21, but some space is left for the expected thermal expansion of the refrigerant substance 25 upon cooling.
The refrigerant substance 25 is any material which has a relatively large heat of fusion when frozen. Since ice has a relatively high heat of fusion, it is a preferable refrigerant substance. It is desired to keep the refrigerant substance from leaking and for this purpose it is gelatinized. Various forms of gelatinized refrigerants comprising principally water are available. -A typical substance comprises 15 parts water, Zparts gelatinized starch dispersed in the water and 1 part borax. Such refrigerants and the method of preparing them are disclosed in U.S. Pat. Nos. 2,800,454 and 2,800,455.
In assembling container 21, it has been found that a preferred method. is to have the bottom side walls and lip 15 made of one piece ofv plastic material and upper surface 23 of another piece. Refrigerant is then placed in the lower portion of container 21, leaving room for expansion, and then the upper surface 23 is cemented into place. A
Insulated bag 17 is seen to include insulation material 29 extending around the sides and bottom of tub 17.
Typically, tub 17 is filled with an insulation material 29 comprising liquid polyurathane foam insulation, or the like, which rapidly expands and solidifies to the limit of the inside walls of container 26. Base 37 is cemented to tub 17 shortly after the insulation is inserted in tub 17. Tub 17 is held in a fixture, like a vise, until the insulation has hardened. It is desirable to achieve maximum insulation density. Therefore, the above assembly procedure is intended to preclude formation of large air cells in the insulation material and to achieve high density of the insulation material. Alternate methods of forming high density insulation material 29 may also be used. For example, material 29 may be formed externally, allowed to harden and then inserted later.
The upper surface of tub 17 is seen to include first and second opposed depressions, 31 and 33, which face container 21 when it is in position. The depressions are of such a size and shape that human fingers may easily enter for grasping container 21. A third depression 35 extends along the length of upper rim 19 for holding tools.
In operation, container 21 is placed in a refrigerator capable of changing the phase of the refrigerant substance 25 from its liquid phase to a solidified phase, i.e., freezing the refrigerant substance. It is preferred that the planar member 13 be in place during the freezing operation. Once the refrigerant substance is frozen, it is positioned in insulated tub 17. The relatively large heat of fusion of the refrigerant substance will maintain planar member 12 in a refrigerated condition for a relatively long period of time.
Multiple closed containers, identical to container 21, may be similarly frozen so that when the refrigerant substance in a first container reverts to the gel phase, a second frozen container, with a cold planar member, may be substituted.
In the practice of dentistry, it has been found that a work surface having a width which may be grasped in the palm of the hand may be cooled by a container having gelatinized water therein of dimensions 14 cm. X
7.5 cm. X 3 cm. for approximately four hours. Thus, a dentist, who places two containers 21 with planar members l3 thereon, in the freezer compartment of a refrigerator would have a refrigerated work surface available for approximately eight working hours.
What is claimed is:
l. A refrigerated work holder comprising,
an insulated tub,
a closed container nestable within said tub, said container having an upper surface which closes said tub and further having a refrigerant substance therein which substantially fills said container, said refrigerant substance having a heat of fusion at least as great as that of ice, said upper surface having an area greater than the lateral cross-section of said container.
2. The apparatus of claim 1 wherein said upper surface has an upwardly extending lip defined about the periphery thereof.
3. The apparatus of claim 1 further defined by an insulative planar member and means for registering said insulative planar member in planarcontact with said said heat conductive planar member in planar contact with said upper surface.
5. The apparatus of claim 1 wherein said insulated tub has a flat upper rim upon which the upper surface of said container is seated, said rim having first and second opposed depressions facing said container for grasping said container.
6. The apparatus of claim 1 wherein said tub has an elongated depression therein adapted to hold tools.
7. A refrigerated work holder comprising,
a closed container having a volumetric shape which may occupy the volume of a tub, said container having an upper work surface,
a refrigerant substance having a heat of fusion at least as great as that of ice, said refrigerant substance substantially filling said closed container, and
a planar member disposed in contact with said work surface and means for aligning said planar member with said work surface.
8. The apparatus of claim 7 wherein said planar member is insulative.
9. The apparatus of claim 7 wherein said planar member is heat conductive.

Claims (9)

1. A refrigerated work holder comprising, an insulated tub, a closed container nestable within said tub, said container having an upper surface which closes said tub and further having a refrigerant substance therein which substantially fills said container, said refrigerant substance having a Heat of fusion at least as great as that of ice, said upper surface having an area greater than the lateral cross-section of said container.
2. The apparatus of claim 1 wherein said upper surface has an upwardly extending lip defined about the periphery thereof.
3. The apparatus of claim 1 further defined by an insulative planar member and means for registering said insulative planar member in planar contact with said upper surface.
4. The apparatus of claim 1 further defined by a heat conductive planar member and means for registering said heat conductive planar member in planar contact with said upper surface.
5. The apparatus of claim 1 wherein said insulated tub has a flat upper rim upon which the upper surface of said container is seated, said rim having first and second opposed depressions facing said container for grasping said container.
6. The apparatus of claim 1 wherein said tub has an elongated depression therein adapted to hold tools.
7. A refrigerated work holder comprising, a closed container having a volumetric shape which may occupy the volume of a tub, said container having an upper work surface, a refrigerant substance having a heat of fusion at least as great as that of ice, said refrigerant substance substantially filling said closed container, and a planar member disposed in contact with said work surface and means for aligning said planar member with said work surface.
8. The apparatus of claim 7 wherein said planar member is insulative.
9. The apparatus of claim 7 wherein said planar member is heat conductive.
US468253A 1974-05-09 1974-05-09 Portable refrigerated work holder Expired - Lifetime US3922879A (en)

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037428A (en) * 1976-03-19 1977-07-26 Giannotti Albert J Beverage cooler assembly
US4060276A (en) * 1976-11-22 1977-11-29 Lindsay Robert A Cooling seat
US4306424A (en) * 1980-01-25 1981-12-22 Winston Chavoor Cold plate
US4357809A (en) * 1980-10-31 1982-11-09 That Distributing Company, Inc. Cooling arrangement including a gel
WO1983001994A1 (en) * 1981-12-04 1983-06-09 American Hospital Supply Corp Constant temperature tray for storage of biological samples
US4615183A (en) * 1985-06-24 1986-10-07 The United States Of America As Represented By The Department Of Health And Human Services Cold plate for laboratory use
US4799364A (en) * 1985-06-26 1989-01-24 U.S. Philips Corp. Discoid cold cartridge insertable into an ice-cream maker
US4895068A (en) * 1988-03-31 1990-01-23 King-Seeley Thermos Company Gas grill cooler shelf
US4920761A (en) * 1985-06-26 1990-05-01 U.S. Philips Corp. Ice-cream maker
US5058397A (en) * 1990-08-29 1991-10-22 Usa/Scientific Plastics, Inc. Cryogenic storage box for microcentrifuge tubes
US5244385A (en) * 1991-08-13 1993-09-14 Yozwiak Raymond A Dental mixing slab and method of use
US5587228A (en) * 1985-02-05 1996-12-24 The Boeing Company Microparticle enhanced fibrous ceramics
US5689970A (en) * 1996-02-07 1997-11-25 Life Technologies, Inc. Enzyme cooler with porous foam refrigerant block
US6361746B1 (en) 1998-11-16 2002-03-26 Julie Ann Wlodarski Medical specimen tote
US6789393B2 (en) 2002-02-11 2004-09-14 S.C. Johnson Home Storage, Inc. Container with pressure relief and lid and method of manufacture therefor
FR2880528A1 (en) * 2005-01-12 2006-07-14 Jean Marc Jacques Andre Coppin ISOTHERMAL SPEAKER FOR TRAPS OF ICE TRADE CREAMS
US20080053111A1 (en) * 2006-08-29 2008-03-06 The Delfield Company Llc. Method and apparatus for controlling temperature of a freeze plate
US8006980B1 (en) * 2008-04-21 2011-08-30 Big Dogg Pong LLC Beer pong table with cooling system
US20130061808A1 (en) * 2010-11-04 2013-03-14 Kenneth H. Leahy Pet cooling bed
US20140008042A1 (en) * 2011-03-23 2014-01-09 Biocision, Llc Phase change thermal-sink apparatus
US10024584B1 (en) 2011-07-29 2018-07-17 Jason N. Peet Cooled cabinet assembly
US10709251B1 (en) * 2019-03-13 2020-07-14 Janet Lynn Rothman Portable seat cushion with self-contained heat source

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US2492479A (en) * 1947-10-30 1949-12-27 William H Howard Mixing slab for porcelain fillings
US2767563A (en) * 1953-11-16 1956-10-23 Alexander T Picascia Heat transferring container support
US3130288A (en) * 1961-11-21 1964-04-21 Foster F Monaco Food-service device
US3255607A (en) * 1965-03-24 1966-06-14 Lester E Bair Thermal chests
US3383880A (en) * 1966-05-11 1968-05-21 Peters Leo Refrigerated butter patty dish
US3802220A (en) * 1973-06-20 1974-04-09 Kool Pak Corp Cooling cushion

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492479A (en) * 1947-10-30 1949-12-27 William H Howard Mixing slab for porcelain fillings
US2767563A (en) * 1953-11-16 1956-10-23 Alexander T Picascia Heat transferring container support
US3130288A (en) * 1961-11-21 1964-04-21 Foster F Monaco Food-service device
US3255607A (en) * 1965-03-24 1966-06-14 Lester E Bair Thermal chests
US3383880A (en) * 1966-05-11 1968-05-21 Peters Leo Refrigerated butter patty dish
US3802220A (en) * 1973-06-20 1974-04-09 Kool Pak Corp Cooling cushion

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037428A (en) * 1976-03-19 1977-07-26 Giannotti Albert J Beverage cooler assembly
US4060276A (en) * 1976-11-22 1977-11-29 Lindsay Robert A Cooling seat
US4306424A (en) * 1980-01-25 1981-12-22 Winston Chavoor Cold plate
US4357809A (en) * 1980-10-31 1982-11-09 That Distributing Company, Inc. Cooling arrangement including a gel
WO1983001994A1 (en) * 1981-12-04 1983-06-09 American Hospital Supply Corp Constant temperature tray for storage of biological samples
US5635454A (en) * 1984-10-18 1997-06-03 The Boeing Company Method for making low density ceramic composites
US5640853A (en) * 1984-10-18 1997-06-24 The Boeing Company Method for venting cryogen
US5660053A (en) * 1984-11-01 1997-08-26 The Boeing Company Cold table
US5644919A (en) * 1984-11-01 1997-07-08 The Boeing Company Cryogenic cold storage device
US5632151A (en) * 1984-11-01 1997-05-27 The Boeing Company Method for transporting cryogen to workpieces
US5587228A (en) * 1985-02-05 1996-12-24 The Boeing Company Microparticle enhanced fibrous ceramics
US4615183A (en) * 1985-06-24 1986-10-07 The United States Of America As Represented By The Department Of Health And Human Services Cold plate for laboratory use
US4920761A (en) * 1985-06-26 1990-05-01 U.S. Philips Corp. Ice-cream maker
US4799364A (en) * 1985-06-26 1989-01-24 U.S. Philips Corp. Discoid cold cartridge insertable into an ice-cream maker
US4895068A (en) * 1988-03-31 1990-01-23 King-Seeley Thermos Company Gas grill cooler shelf
US5058397A (en) * 1990-08-29 1991-10-22 Usa/Scientific Plastics, Inc. Cryogenic storage box for microcentrifuge tubes
US5244385A (en) * 1991-08-13 1993-09-14 Yozwiak Raymond A Dental mixing slab and method of use
US5689970A (en) * 1996-02-07 1997-11-25 Life Technologies, Inc. Enzyme cooler with porous foam refrigerant block
US6361746B1 (en) 1998-11-16 2002-03-26 Julie Ann Wlodarski Medical specimen tote
US6789393B2 (en) 2002-02-11 2004-09-14 S.C. Johnson Home Storage, Inc. Container with pressure relief and lid and method of manufacture therefor
FR2880528A1 (en) * 2005-01-12 2006-07-14 Jean Marc Jacques Andre Coppin ISOTHERMAL SPEAKER FOR TRAPS OF ICE TRADE CREAMS
US20080092584A1 (en) * 2005-01-12 2008-04-24 Jean-Marc Coppin Device For Holding And Transporting At Least One Container Containing A Food Product, Such As Ice Cream, And Freezer Designed To Hold This Device
US20080053111A1 (en) * 2006-08-29 2008-03-06 The Delfield Company Llc. Method and apparatus for controlling temperature of a freeze plate
US8006980B1 (en) * 2008-04-21 2011-08-30 Big Dogg Pong LLC Beer pong table with cooling system
US8235389B1 (en) 2008-04-21 2012-08-07 Big Dogg Pong LLC Beer pong table with cooling system
US20130061808A1 (en) * 2010-11-04 2013-03-14 Kenneth H. Leahy Pet cooling bed
US8567347B2 (en) * 2010-11-04 2013-10-29 Layray, Llc Pet cooling bed
US20140008042A1 (en) * 2011-03-23 2014-01-09 Biocision, Llc Phase change thermal-sink apparatus
US10295268B2 (en) * 2011-03-23 2019-05-21 Cool Lab, Llc Phase change thermal-sink apparatus
US10024584B1 (en) 2011-07-29 2018-07-17 Jason N. Peet Cooled cabinet assembly
US10709251B1 (en) * 2019-03-13 2020-07-14 Janet Lynn Rothman Portable seat cushion with self-contained heat source

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