WO2020231403A1 - Vacuum pump lid for cannisters - Google Patents

Vacuum pump lid for cannisters Download PDF

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Publication number
WO2020231403A1
WO2020231403A1 PCT/US2019/032050 US2019032050W WO2020231403A1 WO 2020231403 A1 WO2020231403 A1 WO 2020231403A1 US 2019032050 W US2019032050 W US 2019032050W WO 2020231403 A1 WO2020231403 A1 WO 2020231403A1
Authority
WO
WIPO (PCT)
Prior art keywords
airhole
cannister
lid
cap
opening
Prior art date
Application number
PCT/US2019/032050
Other languages
French (fr)
Inventor
Danny TSAI
Jeffrey Tsai
Michael Tsai
Original Assignee
Lenntek Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lenntek Corporation filed Critical Lenntek Corporation
Priority to PCT/US2019/032050 priority Critical patent/WO2020231403A1/en
Priority to CN201920930266.4U priority patent/CN210149967U/en
Priority to CN201910535021.6A priority patent/CN111924341A/en
Priority to US15/930,528 priority patent/US20200359866A1/en
Publication of WO2020231403A1 publication Critical patent/WO2020231403A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2038—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum with means for establishing or improving vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2251/00—Details relating to container closures
    • B65D2251/06—Special configurations; Closures simulating or provided with another item, e.g. puppet, animal, vehicle, building

Definitions

  • the present invention lies in the field of portable, vacuum-sealable containers. It is beneficial to vacuum seal ajar or cannister containing dry goods in order to preserve storage life. Because vacuum sealing requires removing air from the cannister, many commercially available vacuum seal solutions require a separate suction device that attaches to the lid. Other devices include multiple movable parts that wear and degrade with time. It is therefore desirable to provide a simple, portable solution that does not require a separate vacuum sealing device, and moreover requires as few parts as possible to accomplish the desired functionality.
  • the invention comprises a lid assembly that can cover a cannister while incorporating vacuum-sealing functionality in a lightweight, simple design.
  • the lid assembly comprises a tubular sleeve having connection means at its bottom end for attachment to a cannister, and an opening at its top end with diameter less than the diameter of the sleeve, the opening forming a socket and outlet for a depressible cap; a cylindrical housing fitting within the tubular sleeve and comprising a closed base and an open top end, and receiving at its top end the depressible cap, which is movably fitted within the cylindrical housing with a spring interposed between the depressible cap and the closed base, thereby comprising a piston; an airhole through the closed base of the cylindrical housing, the airhole having a top opening and a bottom opening; and a pliable valve pin movably situated within the airhole and comprising a neck, a convex top
  • FIG. 1 is a side perspective view of the device.
  • FIG. 2 is side cross-sectional view of the device.
  • FIG. 3 is a perspective exploded view of the device.
  • FIG. 4 is a perspective exploded view of the device.
  • the device comprises a vacuum pump lid [100] with a pressable vacuum pump [107] on the top.
  • the vacuum pump lid [100] can attach to various containers such as cannister [200] In particular, so long as vacuum pump lid [100] matches the diameter of the cannister mouth and has complementary attachment means to the cannister mouth (pictured here with threads [109]), then the vacuum pump lid [100] will apply to the cannister.
  • the vacuum pump lid is shown in exploded views in FIGs. 3-4 and in cross-sectional vies in FIG. 2.
  • the lid comprises a tubular sleeve [105] having complementary means [115] for closing a cannister [200]
  • closure means commonly available today include screw covers, twist-off caps, corks, snap-on caps, bail closures.
  • Various mechanical structures function to effect attachment and closure, including threads (pictured), lugs, and plugs.
  • cannister [200] has threads [109] for receiving a cap, therefore the complementary closure means of tubular sleeve [105] comprise threaded connectors [115].
  • Tubular sleeve [105] holds depressible cap [107] and a cylindrical housing [106] through which air from the jar [200] is removed.
  • tubular sleeve [105] has a flanged opening opposite to the closure end forming a socket [125] and egress for depressible cap [107]
  • Depressible cap [107] has a flange [117] at its base so that when fit into the socket [125] it remains in place protruding from the sleeve.
  • flanged opening [125] would have a smaller diameter than that of the tubular sleeve [105] such that depressible cap [107] presents as a button that the user can press.
  • Depressible cap [107] covers cylindrical housing [106], whose base is solid save for an opening [111] through which valve pin [110] transects the base.
  • Spring [108] is interposed between cap [107] and the base of the cylindrical housing [106], thereby comprising a piston when cap [107] is depressed, thereby compressing the spring.
  • depressible cap [107] can be fitted with an airtight seal between its edge [117] and the cylindrical housing [106], for instance with a gasket.
  • Valve pin [110] comprises a convex top flange [101], disc-shaped bottom flange
  • valve pin [110] transects the base of housing [106] by being retained within airhole [111].
  • Valve pin [110] has a diameter less than that of airhole [111] so as to allow air movement through the airhole, and is preferably constructed of a pliant material allowing it to easily move within the airhole when depressible cap [107] is pumped, causing air to flow up and down in the housing [106]
  • Sample pliable materials include thermoplastic polyurethane, silicone, rubber, etc...
  • Convex top flange [101] and disc-shaped bottom flange [102] each have diameters exceeding that of airhole [111], so that valve pin’s neck [103] remains retained within the airhole even as air pushes against the valve pin. Due to the convexity of top flange [101], valve pin [110] is pushed downwards by air when cap [107] is depressed, causing an opening to form around the neck at the base of the airhole.
  • cap [107] springs back to its original position, vacuum force pulls valve pin [110] back upwards, causing air from the cannister [200] to exit through that opening formed around the base of the airhole [111]
  • Bottom flange [102] then rests in place over the base of the airhole [111] to seal the airhole.
  • top flange [101] will begin to flatten against the top of the airhole [111].
  • the pressure inside the cylindrical housing [106] will hold spring [108] in a compressed state and the user will find cap [107] difficult to press further. Thus, a vacuum seal will have been created.
  • base cap [104] covers the underside of cylindrical housing [106], protecting the assembly of air hole [111] and valve pin [110] from materials and damage.
  • base cap [104] comprises ribs [123] and airholes [113]. Gasket [121] ensures a tight seal between vacuum pump lid [100] and cannister [200]
  • the pump does not create a PSI high enough to prevent breaking the vacuum seal manually. Therefore, the sole structure that functions to release the vacuum seal is the release mechanism for releasing the sleeve [105] from the cannister. If the connection means is threads (as pictured), one or two degrees of manual twisting of the sleeve [105]
  • tubular sleeve [105] to control the opening and closing of the cannister means that child proofing functionality can be integrated into tubular sleeve [105] For instance, push-down to open or squeeze to open functionality can be integrated into the threaded tubular sleeve mechanism.
  • valve pin [110] The only moving parts are pump [107], spring [108] and valve pin [110], each of which are constructible of a single material.
  • the spring may be constructed of a single coil of metal
  • the pump may be constructed of a single piece of plastic
  • the valve pin may be constructed of a single piece of silicone, thermoplastic polyurethane, or the like. These materials are relatively sturdy and resistant to wear.
  • Valve pin [110] functions by a simple up and down movement powered by suction, therefore resulting in minimal wear and tear.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

A vacuum pump lid that can be applied to any cannister is disclosed. The lid integrates with the closure system of the cannister, whether it be by threads, push or snap closures, or the like. With the pumping of a button on the top of the lid, a pliable valve pin operates to remove a small amount of air from the cannister to achieve a vacuum seal. The seal is released when the lid is removed. The simple solution uses few moving parts to achieve the results, so it is long-lasting and easy to make.

Description

VACUUM PUMP LID FOR CANNISTERS
BACKGROUND
The present invention lies in the field of portable, vacuum-sealable containers. It is beneficial to vacuum seal ajar or cannister containing dry goods in order to preserve storage life. Because vacuum sealing requires removing air from the cannister, many commercially available vacuum seal solutions require a separate suction device that attaches to the lid. Other devices include multiple movable parts that wear and degrade with time. It is therefore desirable to provide a simple, portable solution that does not require a separate vacuum sealing device, and moreover requires as few parts as possible to accomplish the desired functionality.
SUMMARY
It is an objective of the present invention to provide a simple, portable vacuum pump lid that can be applied to various containers. The invention comprises a lid assembly that can cover a cannister while incorporating vacuum-sealing functionality in a lightweight, simple design. The lid assembly comprises a tubular sleeve having connection means at its bottom end for attachment to a cannister, and an opening at its top end with diameter less than the diameter of the sleeve, the opening forming a socket and outlet for a depressible cap; a cylindrical housing fitting within the tubular sleeve and comprising a closed base and an open top end, and receiving at its top end the depressible cap, which is movably fitted within the cylindrical housing with a spring interposed between the depressible cap and the closed base, thereby comprising a piston; an airhole through the closed base of the cylindrical housing, the airhole having a top opening and a bottom opening; and a pliable valve pin movably situated within the airhole and comprising a neck, a convex top flange the diameter of which exceeds the top opening of the airhole and a bottom flange the diameter of which exceeds the bottom opening of the airhole, whereby the neck of the valve pin is movably retained within the airhole.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side perspective view of the device.
FIG. 2 is side cross-sectional view of the device.
FIG. 3 is a perspective exploded view of the device.
FIG. 4 is a perspective exploded view of the device.
DETAILED DESCRIPTION
Referring now to the drawings, in which like numerals represent like elements, the device comprises a vacuum pump lid [100] with a pressable vacuum pump [107] on the top. The vacuum pump lid [100] can attach to various containers such as cannister [200] In particular, so long as vacuum pump lid [100] matches the diameter of the cannister mouth and has complementary attachment means to the cannister mouth (pictured here with threads [109]), then the vacuum pump lid [100] will apply to the cannister.
The vacuum pump lid is shown in exploded views in FIGs. 3-4 and in cross-sectional vies in FIG. 2. The lid comprises a tubular sleeve [105] having complementary means [115] for closing a cannister [200] Some examples of closure means commonly available today include screw covers, twist-off caps, corks, snap-on caps, bail closures. Various mechanical structures function to effect attachment and closure, including threads (pictured), lugs, and plugs. As depicted in the drawings, cannister [200] has threads [109] for receiving a cap, therefore the complementary closure means of tubular sleeve [105] comprise threaded connectors [115].
Tubular sleeve [105] holds depressible cap [107] and a cylindrical housing [106] through which air from the jar [200] is removed. In particular, in the preferred embodiment tubular sleeve [105] has a flanged opening opposite to the closure end forming a socket [125] and egress for depressible cap [107] Depressible cap [107] has a flange [117] at its base so that when fit into the socket [125] it remains in place protruding from the sleeve. In other words, flanged opening [125] would have a smaller diameter than that of the tubular sleeve [105] such that depressible cap [107] presents as a button that the user can press.
Depressible cap [107] covers cylindrical housing [106], whose base is solid save for an opening [111] through which valve pin [110] transects the base. Spring [108] is interposed between cap [107] and the base of the cylindrical housing [106], thereby comprising a piston when cap [107] is depressed, thereby compressing the spring. To ensure its function as a piston, depressible cap [107] can be fitted with an airtight seal between its edge [117] and the cylindrical housing [106], for instance with a gasket.
Valve pin [110] comprises a convex top flange [101], disc-shaped bottom flange
[102], and neck [103] whereby the valve pin [110] transects the base of housing [106] by being retained within airhole [111]. Valve pin [110] has a diameter less than that of airhole [111] so as to allow air movement through the airhole, and is preferably constructed of a pliant material allowing it to easily move within the airhole when depressible cap [107] is pumped, causing air to flow up and down in the housing [106] Sample pliable materials include thermoplastic polyurethane, silicone, rubber, etc...
Convex top flange [101] and disc-shaped bottom flange [102] each have diameters exceeding that of airhole [111], so that valve pin’s neck [103] remains retained within the airhole even as air pushes against the valve pin. Due to the convexity of top flange [101], valve pin [110] is pushed downwards by air when cap [107] is depressed, causing an opening to form around the neck at the base of the airhole. When cap [107] springs back to its original position, vacuum force pulls valve pin [110] back upwards, causing air from the cannister [200] to exit through that opening formed around the base of the airhole [111] Bottom flange [102] then rests in place over the base of the airhole [111] to seal the airhole. After several pumps of depressible cap [107], top flange [101] will begin to flatten against the top of the airhole [111]. The pressure inside the cylindrical housing [106] will hold spring [108] in a compressed state and the user will find cap [107] difficult to press further. Thus, a vacuum seal will have been created.
Preferably, base cap [104] covers the underside of cylindrical housing [106], protecting the assembly of air hole [111] and valve pin [110] from materials and damage. In order to allow for air flow into cylindrical housing [106], base cap [104] comprises ribs [123] and airholes [113]. Gasket [121] ensures a tight seal between vacuum pump lid [100] and cannister [200]
The pump does not create a PSI high enough to prevent breaking the vacuum seal manually. Therefore, the sole structure that functions to release the vacuum seal is the release mechanism for releasing the sleeve [105] from the cannister. If the connection means is threads (as pictured), one or two degrees of manual twisting of the sleeve [105]
counterclockwise will release the vacuum seal and open the cannister. Similarly, if the connection means is a snap closure, the vacuum will easily be released by manually pulling off the sleeve [105] Upon breaking the vacuum seal, spring [108] will expand to its original position and valve pin [110] will return to its original shape. Thus, additional structures and parts do not need to be integrated into the vacuum functionality of the lid assembly, further reducing potential causes of wear and breakdown. Furthermore, the functioning of tubular sleeve [105] to control the opening and closing of the cannister means that child proofing functionality can be integrated into tubular sleeve [105] For instance, push-down to open or squeeze to open functionality can be integrated into the threaded tubular sleeve mechanism.
The overall simplicity of design ensures more efficient production and longer lasting parts. The only moving parts are pump [107], spring [108] and valve pin [110], each of which are constructible of a single material. For instance, the spring may be constructed of a single coil of metal, while the pump may be constructed of a single piece of plastic, and the valve pin may be constructed of a single piece of silicone, thermoplastic polyurethane, or the like. These materials are relatively sturdy and resistant to wear. Valve pin [110] functions by a simple up and down movement powered by suction, therefore resulting in minimal wear and tear.

Claims

1. A vacuum pump lid for attaching to a cannister having means for receiving a lid comprising:
a tubular sleeve having complementary means at its bottom end for attaching the lid assembly to the mouth of the jar, and an opening at its top end with diameter less than the diameter of the sleeve, the opening forming a socket to receive a depressible cap;
a cylindrical housing fitting within the tubular sleeve and comprising a closed base and an open top end, and receiving at its top end the depressible cap, which is movably fitted within the cylindrical housing with a spring interposed between the depressible cap and the closed base, thereby comprising a piston;
an airhole through the closed base of the cylindrical housing, the airhole having a top opening and a bottom opening; and
a pliable valve pin comprising a neck, a convex top flange the diameter of which exceeds the top opening of the airhole, and a bottom flange the diameter of which exceeds the bottom opening of the airhole, whereby the neck of the pliable valve pin is movably retained within the airhole.
2. The cannister of Claim 1 wherein the airhole is contained within a cylindrical
extension protruding from the base of the cylindrical housing and inset from the edge of the cylindrical housing, and wherein the cannister further comprises a cap covering the cylindrical extension, the cap having at least one airhole.
3. The cannister of Claim 1 wherein the means for receiving the lid assembly is a
threaded connector.
4. The cannister of Claim 2 wherein the means for receiving the lid assembly is a
threaded connector.
PCT/US2019/032050 2019-05-13 2019-05-13 Vacuum pump lid for cannisters WO2020231403A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/US2019/032050 WO2020231403A1 (en) 2019-05-13 2019-05-13 Vacuum pump lid for cannisters
CN201920930266.4U CN210149967U (en) 2019-05-13 2019-06-20 Vacuum pump cover for attachment to canister and canister
CN201910535021.6A CN111924341A (en) 2019-05-13 2019-06-20 Vacuum pump cover for attachment to canister and canister
US15/930,528 US20200359866A1 (en) 2019-05-13 2020-05-13 Vacuum pump lid for cannisters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2019/032050 WO2020231403A1 (en) 2019-05-13 2019-05-13 Vacuum pump lid for cannisters

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/930,528 Continuation-In-Part US20200359866A1 (en) 2019-05-13 2020-05-13 Vacuum pump lid for cannisters

Publications (1)

Publication Number Publication Date
WO2020231403A1 true WO2020231403A1 (en) 2020-11-19

Family

ID=69763510

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2019/032050 WO2020231403A1 (en) 2019-05-13 2019-05-13 Vacuum pump lid for cannisters

Country Status (3)

Country Link
US (1) US20200359866A1 (en)
CN (2) CN111924341A (en)
WO (1) WO2020231403A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020231403A1 (en) * 2019-05-13 2020-11-19 Lenntek Corporation Vacuum pump lid for cannisters

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040155041A1 (en) * 2003-02-11 2004-08-12 Man-Hyun Kwon Vacuum container to preserve food
CN201538507U (en) * 2009-07-02 2010-08-04 胡海明 Vacuum refreshing tea caddy
US20180030974A1 (en) * 2016-07-27 2018-02-01 Hypobaric Labs Vacuum Sealable Container with Internal Pump Mechanism
WO2018040747A1 (en) * 2016-08-29 2018-03-08 魏宏华 Vacuum juice freshness-preserving cup

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4984611A (en) * 1989-04-05 1991-01-15 Zojirushi Corporation Vacuum storage device
US5405038A (en) * 1993-12-02 1995-04-11 Chuang; Hsiao-Cheng Vacuum food container device
US5347918A (en) * 1994-04-06 1994-09-20 Chen Hung Vacuum thermal cooker
US5558243A (en) * 1994-11-07 1996-09-24 Chiun Pao Enterprise Co., Ltd. Sealing cap for vacuum containers
JPH0977145A (en) * 1995-09-19 1997-03-25 Hikari Kinzoku Kogyo Kk Two-stage stacked vacuum-sealed preservation container for food
US5651470A (en) * 1996-08-26 1997-07-29 Wu; Benemon Vacuum container
US5735317A (en) * 1996-10-18 1998-04-07 Enrichwell Enterprise Co., Ltd. Sealed container and suction pump unit
US5803282A (en) * 1996-12-13 1998-09-08 Chen; Pao Ting Vacuum indicator for a bottle
JP2000289782A (en) * 1999-02-04 2000-10-17 Hikari Kinzoku Kogyo Kk Heat-resistant glass food preservation sealed-up vacuum container, and method for preserving cooked rice and food for heat-cooking or food to be heated
US6375024B1 (en) * 1999-08-19 2002-04-23 Yoon Sik Park Vacuum apparatus for forming a vacuum in a container
JP2003040321A (en) * 2001-07-30 2003-02-13 Sanshin Kako Kk Vacuum container
KR100455105B1 (en) * 2001-08-20 2004-11-12 박윤식 Vacuum apparatus for forming a vacuum in a container and indicator for indicating and releasing the vacuum for the apparatus
US6609536B2 (en) * 2001-08-28 2003-08-26 Jen-Fu Chen Depression cap for a bottle
US6619493B2 (en) * 2002-01-28 2003-09-16 Heng-Te Yang Sealable container
US6644489B2 (en) * 2002-03-27 2003-11-11 Tai-In Chang Container assembly having a cover cap provided with a pump member to pump out air from a container
US6789690B2 (en) * 2002-04-19 2004-09-14 Tilia International, Inc. Hose direct canister lid
US7048136B2 (en) * 2002-11-05 2006-05-23 Tilia International, Inc. Canister lid with improved evacuation and vent assembly
US7621416B2 (en) * 2003-12-27 2009-11-24 Formaster S.A. Cover of a container, especially of a vacuum receptacle for storage of foodstuffs
CN2767371Y (en) * 2005-01-16 2006-03-29 周琪凌 Side-wall automatic negative pressure sealable tank
US20070199612A1 (en) * 2006-02-28 2007-08-30 Bob Larimer Decanter stopper with a vacuum pressure indicator
CN101412457B (en) * 2007-10-19 2010-06-02 谢国金 Vacuum fresh-keeping outer housing
KR101002507B1 (en) * 2008-04-30 2010-12-17 김우경 Vacuum container having air-dischrging means by manual pumping
KR101240577B1 (en) * 2010-08-13 2013-03-11 문제구 Cover of airtight container
US8967413B2 (en) * 2011-09-20 2015-03-03 Scac Llc Vacuum lid for use with baby food jars
TWM499389U (en) * 2014-12-12 2015-04-21 Danfany Purification Technology Corp Easy-to-open temperature keeping device
CN207658399U (en) * 2017-12-13 2018-07-27 珠海先河生物技术有限公司 Cup lid and vacuum cup
CN108438500A (en) * 2018-03-23 2018-08-24 安徽义良罐业科技有限公司 A kind of Double-layer tea tank
WO2020231403A1 (en) * 2019-05-13 2020-11-19 Lenntek Corporation Vacuum pump lid for cannisters
CN110236338A (en) * 2019-06-06 2019-09-17 珠海先河生物技术有限公司 A kind of cup lid and vacuum cup

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040155041A1 (en) * 2003-02-11 2004-08-12 Man-Hyun Kwon Vacuum container to preserve food
CN201538507U (en) * 2009-07-02 2010-08-04 胡海明 Vacuum refreshing tea caddy
US20180030974A1 (en) * 2016-07-27 2018-02-01 Hypobaric Labs Vacuum Sealable Container with Internal Pump Mechanism
WO2018040747A1 (en) * 2016-08-29 2018-03-08 魏宏华 Vacuum juice freshness-preserving cup

Also Published As

Publication number Publication date
US20200359866A1 (en) 2020-11-19
CN111924341A (en) 2020-11-13
CN210149967U (en) 2020-03-17

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