EP1900649B1 - Airtight container with a vacuum valve - Google Patents

Airtight container with a vacuum valve Download PDF

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Publication number
EP1900649B1
EP1900649B1 EP07017495A EP07017495A EP1900649B1 EP 1900649 B1 EP1900649 B1 EP 1900649B1 EP 07017495 A EP07017495 A EP 07017495A EP 07017495 A EP07017495 A EP 07017495A EP 1900649 B1 EP1900649 B1 EP 1900649B1
Authority
EP
European Patent Office
Prior art keywords
valve
container
engaging hole
vacuum
air
Prior art date
Legal status (The legal status 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 status listed.)
Not-in-force
Application number
EP07017495A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1900649A1 (en
Inventor
Chang-Ho Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lock and Lock Co Ltd
Original Assignee
Lock and Lock Co Ltd
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 Lock and Lock Co Ltd filed Critical Lock and Lock Co Ltd
Publication of EP1900649A1 publication Critical patent/EP1900649A1/en
Application granted granted Critical
Publication of EP1900649B1 publication Critical patent/EP1900649B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • 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
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
    • B65D51/1644—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element the element being a valve

Definitions

  • the present invention relates to a vacuum valve type airtight container.
  • an airtight container for air-tightly storing a certain thing by covering a lid on a container body, a packing is engaged at a container lid, and a lid is covered. So, a certain gap is sealed as the packing air-tightly engages a rim of the container body. So as to enhance an engaging force of the lid, an airtight container having a locking wing is widely used.
  • connection part 36 when it is needed to discharge the air from the interior of the container to the outside by using the vacuum pump 35, since a sucker shaped connection part 36 substantially surrounds the whole portions of the vacuum valve 31, a too large size connection part 36 is needed. So, the engaging connection of the connection part 36 may be limited depending on the surrounding situations of the container lid. It is impossible to manufacture a compact size vacuum pump. The silicon rubber sucker shaped connection part 36 is made much larger, so that it may be easily broken.
  • a cover of a container especially of a vacuum receptacle for storage of foodstuffs.
  • the cover of the container has a hollow with an elliptical outline pointed towards the inside of the container.
  • the hollow has a spherical projection, pointed upwards, and the projection has a cylindrical cavity with an opening housing a valve head.
  • the valve head as the form of a circular plate and has an edge with a triangular outline, cooperating with a gasket of the valve.
  • the valve head is installed loosely in the opening by means of a sleeve ending with a flange with distancing projections in the form of radial ribs.
  • a container according to claim 1 is provided.
  • a handle may protrude from one side of the valve circular plate of the first valve.
  • the handle may be slanted upward, away from the surface of the container lid.
  • the first and second valves may be made of silicon rubbers.
  • the airtight container 1 comprises a container body 2 made by injecting a plastic material, a container lid 3 and a vacuum valve 4 which is made of a silicon rubber material.
  • the container lid 3 is air-tightly engaged at the container body 2 with the packing 5 being disposed between them.
  • the vacuum valve 4 comprises a first valve 6 and a second valve 7.
  • the first valve 6 comprises a cylindrical part 8, and a valve circular plate 9 integrally provided at an upper side of the cylindrical part 8 and being formed in a large circular plate shape.
  • a flange plate 10 is provided at a lower side of the cylindrical part 8 for preventing an escape of the same.
  • the cylindrical part 8 of the first valve 6 is inserted into a first valve engaging hole 11 formed at the container lid 3 and is movable in up and down directions. While contracting or expanding, the silicon rubber flange plate 10 flexibly passes through a first valve engaging hole 11 having a diameter smaller than the silicon rubber flange plate 10, so that it is not escaped from the first valve engaging hole 1 unless a certain external force is applied thereto.
  • a first air flow slit groove 12 with a narrow width is formed on the cylindrical part 8 and the flange plate 10 in an up and down direction.
  • a handle 13 protrudes from one side of the valve circular plate 9 for removing the vacuum state.
  • the handle 13 has an inclination gradually rising up in an outward direction and spacially separated all the time from the surface of the container lid 3.
  • a second valve engaging hole 14 is formed at the center of the first valve 6 and passes through the same in an up and down direction.
  • a diameter contraction part 16 (an intermediate portion of the hole is narrower than the upper and lower sides of the same) having a step surface 15 is formed at an intermediate portion of the second valve engaging hole 14 and operates as a valve seat.
  • the second valve 7 is inserted via the second valve engaging hole 14.
  • the second valve 7 is made of a silicon rubber having a good elastic and adhering property and comprises a valve shaft rod 17 passing through the diameter contraction part 16, a valve head 18 which is formed at an upper side of the valve shaft rod 17 and contacts with the step surface 15 which forms the valve seat, and an escape prevention head 19 which is formed at a lower side of the valve shaft rod 17.
  • the escape prevention head 19 passes through the inner diameter of the diameter contraction part 16 and is exposed through the expanded hole, the lower step surface 20 catches the same. In this case, it is impossible for the escape prevention head to escape from the hole without a certain external force.
  • the valve shaft rod 17 is longer than the up and down height of the diameter contraction part 16 protruded into an inner side of the hole, so that the second valve 7 can move up and down.
  • At least one second air flow slit groove 21 having a narrow width is formed at the diameter contraction part 16 in an up and down direction.
  • the second air flow slit groove 21 is not covered even when the escape prevention head 19 of the lower side is closely contacted with the lower step surface 20, so that it is exposed via its up and down sides all the time.
  • the packing 5 is closely contacting the inner wall surface 22 thereby sealing the gap between the contact surfaces.
  • the first valve 6 of the vacuum valve 4 is pressed, and the valve circular plate 9 is closely contacts the surface of the container lid 3, and the connection part 24 of the vacuum pump 23 is connected with the upper hole 14a of the second valve engaging hole 14.
  • the second valve 7 moves up by means of a suction force, and the valve head 18 is spaced apart from the step surface 15 which corresponds to the valve seat.
  • the air of the interior of the container is sucked via the second air flow slit groove 21, the upper hole 14a, the connection part 24 and the vacuum pump 23, so that the air is removed from the interior of the container, and the interior of the same becomes vacuum.
  • connection part 24 when the connection part 24 is separated, the second valve 7 is sucked by means of a vacuum pressure of the interior of the container and is closely contacted with the valve seat 15, so that air communication is cut. So, the air is substantially removed from the interior of the container, so that the food can be stored for a long time period.
  • the first valve 6 When the container lid 3 is to be opened, the first valve 6 is lifted in an upward direction by lifting the handle 13 of the first valve 6. The first valve 6 is moved up.
  • the valve circular plate 9 When the valve circular plate 9 is spaced apart from the surface of the container lid 3, it contacts with the first valve engaging hole 11 of the container lid 3 at the upper side of the first air flow slit groove 12 or is exposed toward an upper side. So, the inner and outer sides of the container communicate with each other via the first air flow slit groove 12.
  • the air enters the interior of the container via the first air flow slit groove 12 communicating with the outside having a relatively higher atmospheric pressure as compared to the interior of the container, so that the vacuum state is removed. As the suction force of the container lid 3 is removed, the container lid 3 can be easily removed from the container body 2.
  • the second valve is provided at the center of the first valve so that air is removed from the interior of the container for generating a vacuum state in the interior of the container with the assistance of the vacuum pump.
  • a vacuum valve is provided in a double structure. So, it is possible to make the vacuum pump compact-sized. The suction force of the air is enhanced, and the life span of the connection part can be extended.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Jet Pumps And Other Pumps (AREA)
EP07017495A 2006-09-13 2007-09-06 Airtight container with a vacuum valve Not-in-force EP1900649B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020060088328A KR100774248B1 (ko) 2006-09-13 2006-09-13 진공밸브 작동식의 밀폐용기

Publications (2)

Publication Number Publication Date
EP1900649A1 EP1900649A1 (en) 2008-03-19
EP1900649B1 true EP1900649B1 (en) 2010-11-10

Family

ID=38846926

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07017495A Not-in-force EP1900649B1 (en) 2006-09-13 2007-09-06 Airtight container with a vacuum valve

Country Status (6)

Country Link
US (1) US20080061063A1 (zh)
EP (1) EP1900649B1 (zh)
KR (1) KR100774248B1 (zh)
CN (1) CN100591584C (zh)
AT (1) ATE487669T1 (zh)
DE (1) DE602007010389D1 (zh)

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US9656514B2 (en) * 2008-11-05 2017-05-23 II Roger Kent Mills Paint pal assembly
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US9637298B2 (en) 2011-05-31 2017-05-02 Nuwave, Llc Vacuum contain, twist and lock cap, and pump
US20130092591A1 (en) * 2011-05-31 2013-04-18 Hearthware, Inc. Vacuum container and pump
WO2013138382A2 (en) * 2012-03-12 2013-09-19 Hearthware Inc. Improved vacuum container, twist and lock cap, and pump
US9708114B2 (en) 2011-05-31 2017-07-18 Nuwave, Llc Vacuum container, twist and lock cap, bottle locker, fluid collector and auto pump
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CN102767669A (zh) * 2012-07-25 2012-11-07 李顺贤 一种耐高温真空绝热夹芯板及其制备方法
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CN103775643B (zh) * 2014-01-15 2016-02-10 广西科技大学 带便捷装卸盖的密封装置及其密封方法
US9370791B1 (en) 2014-01-17 2016-06-21 Trong D Nguyen Vacuum pump and dispenser for bottles
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Also Published As

Publication number Publication date
ATE487669T1 (de) 2010-11-15
EP1900649A1 (en) 2008-03-19
DE602007010389D1 (de) 2010-12-23
US20080061063A1 (en) 2008-03-13
CN101143631A (zh) 2008-03-19
KR100774248B1 (ko) 2007-11-07
CN100591584C (zh) 2010-02-24

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