US3216214A - Vacuum generation apparatus with closed fluid circuit ejector system, especially for vacuum generation of home refrigerator cells and the like - Google Patents

Vacuum generation apparatus with closed fluid circuit ejector system, especially for vacuum generation of home refrigerator cells and the like Download PDF

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US3216214A
US3216214A US368156A US36815664A US3216214A US 3216214 A US3216214 A US 3216214A US 368156 A US368156 A US 368156A US 36815664 A US36815664 A US 36815664A US 3216214 A US3216214 A US 3216214A
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vacuum
vacuum generation
ejector
envelope
refrigerator
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US368156A
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Gasbarro Luciano
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BRECONVUOT ANSTALT
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BRECONVUOT ANSTALT
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042Air treating means within refrigerated spaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/04Treating air flowing to refrigeration compartments
    • F25D2317/043Treating air flowing to refrigeration compartments by creating a vacuum in a storage compartment

Definitions

  • VACUUM GENERATION APPARATUS WITH CLOSED FLUID CIRCUIT EJECTOR SYSTEM, ESPECIALLY FOR VACUUM GENERATION OF HOME REFRIGERATOR CELLS AND THE LIKE Filed May 18, 1964 Fig. 2
  • suction systems these systems being formed by an ejector system with a chamber wherein the vacuum is generated, terminating in correspondence of a profiled nozzle for a pressurized circulating fluid; in general, the water distribution mains having the usual pressure of the mains circuit is directly utilized for the pressurized fluid.
  • the present invention relates to a vacuum generation system of the aforesaid type, which however avoids the necessity of a connection to an apparatus of the hydric or water mains (cock or the like) determining the vacuum formation with a practically self-acting system.
  • the main application is that for the vacuum generation in a home refrigerator cell, in such a manner as to release the refrigerator from the necessity of a connection with a suitable conduit to a cock or other distribution apparatus of the water mains, or of the installation of an appropriate apparatus of the kind.
  • provisions may be made for a continuous tubular circuit with a suitable circulation pump, in which the suction apparatus is inserted for the vacuum forming and downstream thereto a gas vent means is arranged, practically made up under the form of an expansion passage advantageously connected to a cavity designed to assure the filling and (forming of a sufficient fluid accumulation tank.
  • the closed conduit or pass'age may be supported on the rear face or at the bottom of the refrigerator casing, for example in a vertical or horizontal arrangement.
  • provisions may be made for a manual switch or also an automatic system, for instance, combined with the refrigerator cell door and/or of the vacuum cell, while an interruption of the operation may be timed and when the vacuum extent or degree of the vacuum cell reached will be higher than a pre-determined rate.
  • FIG. 1 illustrates a perspective scheme of installation of a home refrigerator
  • FIG. 2 illustrates a scheme in a vertical section
  • FIG. 3 illustrates a demonstrative scheme
  • FIG. 4 illustrates a scheme of control of the operation of the vacuum apparatus.
  • the vacuum-forming system comprises a closed pipe circuit 1 in which a circulation pump 2 is inserted and in the thrust branch thereof, the pipe 1 is coupled to or merges with an ejector housing 1a having within it an ejector nozzle 1b which is coextensive with pipe 1.
  • a conduit or pipe 3 communicates the housing with cell or chamber 5 Where the vacuum is to be effected, with a suitable check valve 3a provided to prevent air from leaking into chamber 5 from pipe circuit 1.
  • a suitable pipe vent 4 is located, coupled advantageously to a hopper or tank 4a, made up as a funnel which serves both for the accumulation of the fluid and the filling, while the venting of the gases, eventually mixed with the fluid by eflect of the suction, is allowed.
  • the plant may be arranged on the rear face of the refrigerator cell 10 in the vertical arrangement as clearly shown in FIGS. 1 and 2, alternatively, provisions may be made for a horizontal arrangement, for example, at the base of the refrigerator.
  • the circuit may be circular.
  • a second switch 8 actuated by a lung membrane 9, for example, an expansible membrance such as a pressure-responsive bellows, which is sensitive to the extent or rate of vacuum in the cell or hermetic envelope 5 so as to break the circuit of the motor 2a of the pump 2 when the desired vacuum rate is thus attained and to restore it when the vacuum rate drops to a certain limiting level, which may be appropriately calibrated.
  • a lung membrane for example, an expansible membrance such as a pressure-responsive bellows, which is sensitive to the extent or rate of vacuum in the cell or hermetic envelope 5 so as to break the circuit of the motor 2a of the pump 2 when the desired vacuum rate is thus attained and to restore it when the vacuum rate drops to a certain limiting level, which may be appropriately calibrated.
  • the closed circuit circulation fluid may be any suit able fluid, consistently with the sucked vapours, especially even water.
  • the circulation pump 2 may be of the mechanical control type (for instance connected to the door motion) or an otherwise actuated type.
  • a refrigerator for domestic use comprising a casing forming a cell closed by a front door and having a rear face, and an hermetic envelope in said refrigerator in which a vacuum may be generated, the combination of a closed tubular circuit located adjacent the rear face of said casing having coupled thereto a fluid circulation pump, an ejector housing having an ejector nozzle therein coextensive with said tubular circuit whereby to form an ejector, a connecting conduit between said ejector housing and said envelope for forming a vacuum in said envelope, and a branch line coupled to said circuit comrnunicating with an open reservoir which also serves as an air vent.
  • a wall of said hermetic envelope comprises an expansible membrane responsive to the vacuum prevailing in said envelope, and a control circuit for the operation of said pump, comprising a first switch actuated by the door of the refrigerator whereby to actuate said control circuit only when said door is closed, and a second switch controlled by said expansible membrane for actuating said control circuit when the vacuum in said envelope drops below a predetermined value.
  • a refrigerator for domestic use comprising a casing forming a cell closed by a front door, and an hermetic envelope in said refrigerator in which a vacuum may be generated
  • a closed tubular circuit comprising a fluid circulation pump, a nozzle enclosed within an enlarged housing coaxial with said tubular circuit to form an ejector, a connecting conduit between said housing and said envelope for forming a vacuum in said envelope, a branch line communicatingwith an open reservoir coupled to said closed circuit which also serves as an air vent, an expansible membrane formed in a wall of said envelope pressure-responsive to the vacuum in said envelope, and a control circuit for the operation of said pump comprising a first switch to actuate said control circuit only when said door is closed, and a second switch controlled by said membrane to actuate said control circuit when the vacuum in said envelope falls below a predetermined value.
  • a refrigerator for domestic use comprising 2. casing forming a cell in which a vacuum may be generated, the combination of a closed tubular circuit comprising a fluid circulation pump, an ejector housing formed as an enlargement of the tubular circuit and having a nozzle therein to form an ejector, a connecting conduit between said housing enlargement and said envelope for forming a vacuum in said cell, and an open reservoir communicating with said tubular circuit which also serves as an air vent.
  • a wall of said cell has an expansible membrane sensitive to the vacuum in said cell, and a control circuit for the operation of said pump, comprising a first switch to actuate said control circuit only when said cell is closed, and a second switch controlled by said membrane to actuate the control circuit when the vacuum in said cell falls below a predetermined value.

Description

Nov. 9, 1965 GASBARRO 3,216,214
VACUUM GENERATION APPARATUS WITH CLOSED FLUID CIRCUIT EJECTOR SYSTEM, ESPECIALLY FOR VACUUM GENERATION OF HOME REFRIGERATOR CELLS AND THE LIKE Filed May 18, 1964 Fig. 2
INVENTOR LUC/ANO GASBARRO United States Patent 3,216,214 VACUUM GENERATION APPARATUS WITH CLOSED FLUID CIRCUIT EJECTOR SYSTEM, ESPECIALLY FOR VACUUM GENERATION OF HOME REFRIGERATOR CELLS AND THE LIKE Luciano Gasbarro, Florence, Italy, assignor to Breconvuot Anstalt, Vaduz, Liechtenstein, a corporation of Liechtenstein Filed May 18, 1964, Ser. No. 368,156 Claims priority, application Italy, May 21, 1963, 11,600/ 63 Claims. (Cl. 6217()) It is known that for some uses the generation of a relative vacuum is determined by suction systems, these systems being formed by an ejector system with a chamber wherein the vacuum is generated, terminating in correspondence of a profiled nozzle for a pressurized circulating fluid; in general, the water distribution mains having the usual pressure of the mains circuit is directly utilized for the pressurized fluid.
The present invention relates to a vacuum generation system of the aforesaid type, which however avoids the necessity of a connection to an apparatus of the hydric or water mains (cock or the like) determining the vacuum formation with a practically self-acting system. Although the invention is not restricted to this application, it seems that the main application is that for the vacuum generation in a home refrigerator cell, in such a manner as to release the refrigerator from the necessity of a connection with a suitable conduit to a cock or other distribution apparatus of the water mains, or of the installation of an appropriate apparatus of the kind.
Substantially according to the invention, provisions are made for the fluid designed to the suction effect, with a suitable vent means, in the closed circuit being inserted on one side a forced circulation means such as a pump and on the other side a profiled section designed to be combined with an axial nozzle to form an ejector designed to generate the vacuum in the recess connected thereto.
In the embodiment, provisions may be made for a continuous tubular circuit with a suitable circulation pump, in which the suction apparatus is inserted for the vacuum forming and downstream thereto a gas vent means is arranged, practically made up under the form of an expansion passage advantageously connected to a cavity designed to assure the filling and (forming of a sufficient fluid accumulation tank.
For installation in a home refrigerator, the closed conduit or pass'age may be supported on the rear face or at the bottom of the refrigerator casing, for example in a vertical or horizontal arrangement.
For the control of the electric circulation pump provisions may be made for a manual switch or also an automatic system, for instance, combined with the refrigerator cell door and/or of the vacuum cell, while an interruption of the operation may be timed and when the vacuum extent or degree of the vacuum cell reached will be higher than a pre-determined rate.
The invention will be better understood following the description and the accompanying drawing, which illustrates an embodiment of said invention.
In the drawing:
FIG. 1 illustrates a perspective scheme of installation of a home refrigerator;
FIG. 2 illustrates a scheme in a vertical section;
FIG. 3 illustrates a demonstrative scheme; and
FIG. 4 illustrates a scheme of control of the operation of the vacuum apparatus.
As it can be seen diagrammatically in the accompanying drawing, the vacuum-forming system comprises a closed pipe circuit 1 in which a circulation pump 2 is inserted and in the thrust branch thereof, the pipe 1 is coupled to or merges with an ejector housing 1a having within it an ejector nozzle 1b which is coextensive with pipe 1. A conduit or pipe 3 communicates the housing with cell or chamber 5 Where the vacuum is to be effected, with a suitable check valve 3a provided to prevent air from leaking into chamber 5 from pipe circuit 1. Downstream of the ejector 1a and valve 3a, a suitable pipe vent 4 is located, coupled advantageously to a hopper or tank 4a, made up as a funnel which serves both for the accumulation of the fluid and the filling, while the venting of the gases, eventually mixed with the fluid by eflect of the suction, is allowed.
With regard to an installation in a home refrigerator, the plant may be arranged on the rear face of the refrigerator cell 10 in the vertical arrangement as clearly shown in FIGS. 1 and 2, alternatively, provisions may be made for a horizontal arrangement, for example, at the base of the refrigerator. The circuit may be circular.
In particular in the application above statedprovisions being made to generate the vacuum in a cell or hermetic envelope 5 having a door 12, where the conduit 3 is led to-a control of the motor 2a of the pump 2 may be provided for through a consent determined by a switch 7 controlled for instance by the refrigerator door 11 in such a manner as to impart the consent to the operation for the vacuum generation only when the door is closed. On the other side, provisions may be made also for a second switch 8 actuated by a lung membrane 9, for example, an expansible membrance such as a pressure-responsive bellows, which is sensitive to the extent or rate of vacuum in the cell or hermetic envelope 5 so as to break the circuit of the motor 2a of the pump 2 when the desired vacuum rate is thus attained and to restore it when the vacuum rate drops to a certain limiting level, which may be appropriately calibrated.
The closed circuit circulation fluid may be any suit able fluid, consistently with the sucked vapours, especially even water.
In this way a vacuum generation system particularly cheap and which avoids any emulsioning danger with the lubricants of a conventional decompressor is thus obtained.
It is intended that the drawing only illustrates an embodiment, given only as a practical demonstration of the invention, said invention being in conditions as to be varied in the for-ms and arrangement without however departing from the spirit and scope of the invention. For instance, the circulation pump 2 may be of the mechanical control type (for instance connected to the door motion) or an otherwise actuated type.
What I claim is:
1. In a refrigerator for domestic use, comprising a casing forming a cell closed by a front door and having a rear face, and an hermetic envelope in said refrigerator in which a vacuum may be generated, the combination of a closed tubular circuit located adjacent the rear face of said casing having coupled thereto a fluid circulation pump, an ejector housing having an ejector nozzle therein coextensive with said tubular circuit whereby to form an ejector, a connecting conduit between said ejector housing and said envelope for forming a vacuum in said envelope, and a branch line coupled to said circuit comrnunicating with an open reservoir which also serves as an air vent.
2. The combination according to claim 1, wherein a wall of said hermetic envelope comprises an expansible membrane responsive to the vacuum prevailing in said envelope, and a control circuit for the operation of said pump, comprising a first switch actuated by the door of the refrigerator whereby to actuate said control circuit only when said door is closed, and a second switch controlled by said expansible membrane for actuating said control circuit when the vacuum in said envelope drops below a predetermined value.
3. In a refrigerator for domestic use, comprising a casing forming a cell closed by a front door, and an hermetic envelope in said refrigerator in which a vacuum may be generated, the combination of a closed tubular circuit comprising a fluid circulation pump, a nozzle enclosed within an enlarged housing coaxial with said tubular circuit to form an ejector, a connecting conduit between said housing and said envelope for forming a vacuum in said envelope, a branch line communicatingwith an open reservoir coupled to said closed circuit which also serves as an air vent, an expansible membrane formed in a wall of said envelope pressure-responsive to the vacuum in said envelope, and a control circuit for the operation of said pump comprising a first switch to actuate said control circuit only when said door is closed, and a second switch controlled by said membrane to actuate said control circuit when the vacuum in said envelope falls below a predetermined value.
4. In a refrigerator for domestic use comprising 2. casing forming a cell in which a vacuum may be generated, the combination of a closed tubular circuit comprising a fluid circulation pump, an ejector housing formed as an enlargement of the tubular circuit and having a nozzle therein to form an ejector, a connecting conduit between said housing enlargement and said envelope for forming a vacuum in said cell, and an open reservoir communicating with said tubular circuit which also serves as an air vent.
5. The combination according to claim 4, wherein a wall of said cell has an expansible membrane sensitive to the vacuum in said cell, and a control circuit for the operation of said pump, comprising a first switch to actuate said control circuit only when said cell is closed, and a second switch controlled by said membrane to actuate the control circuit when the vacuum in said cell falls below a predetermined value.
References Cited by the Examiner UNITED STATES PATENTS 1,295,417 2/19 Boerner 62268 2,023,444 =12/35 Roe 62-100 2,109,002 2/ 38 Warren 62268 2,119,320 5/38 Dobrowsky 62268 2,425,816 8/47 Maxson 62268 2,894,845 7/59 Stoddard 62-268 WILLIAM J. WYE, Primary Examiner.

Claims (1)

1. IN A REFRIGERATOR FOR DOMESTIC USE, COMPRISING A CASING FORMING A CELL CLOSED BY A FRONT DOOR AND HAVING A REAR FACE, AND AN HERMETIC ENVELOPE IN SAID REFRIGERATOR IN WHICH A VACUUM MAY BE GENERATED, THE COMBINATION OF A CLOSED TUBULAR CIRCUIT LOCATED ADJACENT THE REAR FACE OF SAID CASING HAVING COUPLED THERETO A FLUID CIRCULATION PUMP, AN EJECTOR HOUSING HAVING AN EJECTOR NOZZLE THEREIN COEXTENSIVE WITH SAID TUBULAR CIRCUIT WHEREBY TO FORM AN EJECTOR, A CONNECTING CONDUIT BETWEEN SAID EJECTOR HOUSING AND SAID ENVELOPE FOR FORMING A VACUUM IN SAID ENVELOPE, AND A BRANCH LINE COUPLED TO SAID CIRCUIT COMMUNICATING WITH AN OPEN RESERVOIR WHICH ALSO SERVES AS AN AIR VENT.
US368156A 1963-05-21 1964-05-18 Vacuum generation apparatus with closed fluid circuit ejector system, especially for vacuum generation of home refrigerator cells and the like Expired - Lifetime US3216214A (en)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694962A (en) * 1970-04-27 1972-10-03 Sybron Corp Sliding door sterilizer with power actuated seal
US4718240A (en) * 1985-03-01 1988-01-12 Helix Technology Corporation Cryopump regeneration method and apparatus
US5157940A (en) * 1990-02-01 1992-10-27 Whirlpool International B.V. Refrigeration, freezer or the like with an automatically closing and opening removable container in which vacuum is produced
US5271240A (en) * 1992-07-06 1993-12-21 Arex, Inc. Household refrigerator-freezer cooling apparatus with vacuum as the preserving means
US6090422A (en) * 1999-08-11 2000-07-18 Taragan; Arie Refrigerator with automatic vacuum compartment and method of preserving fresh food items using the same
ES2151333A1 (en) * 1997-02-07 2000-12-16 Hernandez Munoz Santos Food preservation automatic vacuum chamber consists of a sealed door with opening and vacuuming electric valves and an insulated casing
US20060010890A1 (en) * 2002-10-17 2006-01-19 Bsh Bosch And Siemens Hausgerate Refrigerating device comprising an evacuatable storage compartment
US20060090427A1 (en) * 2004-10-29 2006-05-04 Hau Joseph A Refrigerator with integral vacuum sealer
US20080060376A1 (en) * 2004-03-24 2008-03-13 Espinosa Edward P Vacuum storage apparatus with sliding drawers
US20080302441A1 (en) * 2007-06-06 2008-12-11 Electrolux Home Products, Inc. Storage compartment
US20080302114A1 (en) * 2007-06-05 2008-12-11 Electrolux Home Products, Inc. Storage systems
US20090194193A1 (en) * 2008-02-06 2009-08-06 Whirlpool Corporation Refrigerator vacuum storage system
US20090193760A1 (en) * 2008-02-06 2009-08-06 Whirlpool Corporation Refrigerator door vacuum preservation system
US20090211202A1 (en) * 2008-02-27 2009-08-27 Lemme Anthony R Vacuum or pressure storage system for food or beverage containers
WO2011061065A3 (en) * 2009-11-17 2011-07-14 BSH Bosch und Siemens Hausgeräte GmbH Refrigeration appliance having a storage compartment that can be hermetically closed by a mechanical aeration device
US8127561B1 (en) * 2008-03-12 2012-03-06 Whirlpool Corporation Vacuum compartment in refrigerator
US11104502B2 (en) 2016-03-01 2021-08-31 Jeffrey S. Melcher Multi-function compact appliance and methods for a food or item in a container with a container storage technology
US11494569B2 (en) 2017-11-22 2022-11-08 Jeffrey S. Melcher Wireless device and selective user control and management of a wireless device and data

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1295417A (en) * 1918-06-06 1919-02-25 Naamlooze Vennootschap Octrooi Mij Holland Tot Exploitatie Van Uitvindingen Cooling or cooking box.
US2023444A (en) * 1933-02-13 1935-12-10 Ralph C Roe Air conditioning for moving vehicles
US2109002A (en) * 1936-07-03 1938-02-22 Stanton C Stimmel Refrigerator
US2119320A (en) * 1936-06-23 1938-05-31 Dobrowsky Emmanuel Refrigerator
US2425816A (en) * 1944-07-13 1947-08-19 W L Maxson Corp Apparatus for cooling under ultraviolet radiation and vacuum conditions
US2894845A (en) * 1955-04-18 1959-07-14 Gen Electric Methods of preserving fresh foods

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1295417A (en) * 1918-06-06 1919-02-25 Naamlooze Vennootschap Octrooi Mij Holland Tot Exploitatie Van Uitvindingen Cooling or cooking box.
US2023444A (en) * 1933-02-13 1935-12-10 Ralph C Roe Air conditioning for moving vehicles
US2119320A (en) * 1936-06-23 1938-05-31 Dobrowsky Emmanuel Refrigerator
US2109002A (en) * 1936-07-03 1938-02-22 Stanton C Stimmel Refrigerator
US2425816A (en) * 1944-07-13 1947-08-19 W L Maxson Corp Apparatus for cooling under ultraviolet radiation and vacuum conditions
US2894845A (en) * 1955-04-18 1959-07-14 Gen Electric Methods of preserving fresh foods

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694962A (en) * 1970-04-27 1972-10-03 Sybron Corp Sliding door sterilizer with power actuated seal
US4718240A (en) * 1985-03-01 1988-01-12 Helix Technology Corporation Cryopump regeneration method and apparatus
US5157940A (en) * 1990-02-01 1992-10-27 Whirlpool International B.V. Refrigeration, freezer or the like with an automatically closing and opening removable container in which vacuum is produced
US5271240A (en) * 1992-07-06 1993-12-21 Arex, Inc. Household refrigerator-freezer cooling apparatus with vacuum as the preserving means
ES2151333A1 (en) * 1997-02-07 2000-12-16 Hernandez Munoz Santos Food preservation automatic vacuum chamber consists of a sealed door with opening and vacuuming electric valves and an insulated casing
US6090422A (en) * 1999-08-11 2000-07-18 Taragan; Arie Refrigerator with automatic vacuum compartment and method of preserving fresh food items using the same
US20060010890A1 (en) * 2002-10-17 2006-01-19 Bsh Bosch And Siemens Hausgerate Refrigerating device comprising an evacuatable storage compartment
US7360371B2 (en) * 2002-10-17 2008-04-22 Bsh Bosch Und Siemens Hausgeraete Gmbh Refrigerating device comprising an evacuatable storage compartment
US9510615B2 (en) 2004-03-24 2016-12-06 Jeffrey S. Melcher Vacuum storage apparatus with sliding drawers
US7895848B2 (en) * 2004-03-24 2011-03-01 Jeffrey S. Melcher Vacuum storage apparatus with sliding drawers
US20080060376A1 (en) * 2004-03-24 2008-03-13 Espinosa Edward P Vacuum storage apparatus with sliding drawers
US8915093B2 (en) 2004-03-24 2014-12-23 Jeffrey S. Melcher Vacuum storage apparatus with sliding drawers
US8402775B2 (en) 2004-03-24 2013-03-26 Jeffrey S. Melcher Vacuum storage apparatus with sliding drawers
US20110094190A1 (en) * 2004-03-24 2011-04-28 Jeffrey S. Melcher Vacuum storage apparatus with sliding drawers
US7331163B2 (en) * 2004-10-29 2008-02-19 Hau Joseph A Refrigerator with integral vacuum sealer
US20060090427A1 (en) * 2004-10-29 2006-05-04 Hau Joseph A Refrigerator with integral vacuum sealer
US9791159B2 (en) 2007-06-05 2017-10-17 Electrolux Home Products, Inc. Storage systems
US8979621B2 (en) 2007-06-05 2015-03-17 Electrolux Home Products, Inc. Storage systems
US20080302114A1 (en) * 2007-06-05 2008-12-11 Electrolux Home Products, Inc. Storage systems
US8052235B2 (en) 2007-06-06 2011-11-08 Electrolux Home Products, Inc. Storage compartment
US20080302441A1 (en) * 2007-06-06 2008-12-11 Electrolux Home Products, Inc. Storage compartment
US7669434B2 (en) 2008-02-06 2010-03-02 Whirlpool Corporation Refrigerator door vacuum preservation system
US20090193760A1 (en) * 2008-02-06 2009-08-06 Whirlpool Corporation Refrigerator door vacuum preservation system
US8281606B2 (en) 2008-02-06 2012-10-09 Whirlpool Corporation Refrigerator vacuum storage system
US20090194193A1 (en) * 2008-02-06 2009-08-06 Whirlpool Corporation Refrigerator vacuum storage system
US20090211202A1 (en) * 2008-02-27 2009-08-27 Lemme Anthony R Vacuum or pressure storage system for food or beverage containers
US8127561B1 (en) * 2008-03-12 2012-03-06 Whirlpool Corporation Vacuum compartment in refrigerator
WO2011061065A3 (en) * 2009-11-17 2011-07-14 BSH Bosch und Siemens Hausgeräte GmbH Refrigeration appliance having a storage compartment that can be hermetically closed by a mechanical aeration device
US11104502B2 (en) 2016-03-01 2021-08-31 Jeffrey S. Melcher Multi-function compact appliance and methods for a food or item in a container with a container storage technology
US11494569B2 (en) 2017-11-22 2022-11-08 Jeffrey S. Melcher Wireless device and selective user control and management of a wireless device and data
US11657240B2 (en) 2017-11-22 2023-05-23 Jeffrey S. Melcher Wireless device and selective user control and management of a wireless device and data
US11861448B2 (en) 2017-11-22 2024-01-02 Jeffrey S. Melcher Wireless device and selective user control and management of a wireless device and data
US11915086B2 (en) 2017-11-22 2024-02-27 Jeffrey S. Melcher Wireless device and selective user control and management of a wireless device and data
US11915087B2 (en) 2017-11-22 2024-02-27 Jeffrey S. Melcher Wireless device and selective user control and management of a wireless device and data

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