EP0524551B1 - Sealing valve device particularly for vacuum containers - Google Patents

Sealing valve device particularly for vacuum containers Download PDF

Info

Publication number
EP0524551B1
EP0524551B1 EP19920112195 EP92112195A EP0524551B1 EP 0524551 B1 EP0524551 B1 EP 0524551B1 EP 19920112195 EP19920112195 EP 19920112195 EP 92112195 A EP92112195 A EP 92112195A EP 0524551 B1 EP0524551 B1 EP 0524551B1
Authority
EP
European Patent Office
Prior art keywords
sealing member
valve body
sealing
vacuum
valve device
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.)
Expired - Lifetime
Application number
EP19920112195
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0524551A1 (en
Inventor
Franco C/O Whirlpool Italia S.R.L. Germi
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.)
Whirlpool Europe BV
Original Assignee
Whirlpool Europe BV
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 Whirlpool Europe BV filed Critical Whirlpool Europe BV
Publication of EP0524551A1 publication Critical patent/EP0524551A1/en
Application granted granted Critical
Publication of EP0524551B1 publication Critical patent/EP0524551B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • This invention relates to a valve device of the type comprising a valve body with a sealing seat and a sealing or valving member for maintaining and breaking the vacuum in a compartment or container.
  • the invention is applicable in the most varied commercial sectors involving vacuum preservation, in particular for preserving foods in combination with other traditional preservation methods such as refrigeration.
  • Valve devices for maintaining and breaking the vacuum in containers, compartments and the like, such as bags, are known in the state of the art.
  • such devices generally comprise several components, of which the most important are a threaded element in which the sealing seat is formed, and a sealing or valving member retained in the sealing seat by a third component which is screwed onto the first element after the vacuum has been formed in the container provided with said device.
  • This third component has to be unscrewed to break the vacuum in order to open the container.
  • An object of the present invention is to provide a valve device for maintaining and breaking vacuum which is simple to construct, comprises only a few components and is easy to use by the user.
  • a further important object of the invention is to provide a valve device of the stated type which can be easily associated with containers of the aforesaid type or incorporated in the closure part of the container, for example its lid, and is reliable in maintaining the vacuum with the passage of time.
  • a further object of the present invention is to provide a valve device which is of low production cost.
  • valve device characterised by comprising a valve body with a first annular projection surrounding the end sealing part and facing the compartment, and on the opposite side a tubular guide portion for said sealing member, a second projection forming the sealing seat for the sealing member, and a third annular projection for protecting the sealing member when the vacuum has been formed, and shaped to facilitate the opening of the valve device, and further characterised in that the sealing member is in one piece, is elastically deformable and comprises a projecting appendix on the vacuum side for retaining said sealing member in situ within the valve body by snap-engagement
  • the reference numeral 1 indicates the valve body, which forms an integral part of a container 4 used for example for the vacuum preservation of food.
  • a cylindrical recess 22 for protecting the comical end 6 of a sealing or valving member 2.
  • a through hole 7 connects the container 4 to the outside; on the outside of the lid the valve body comprises a cylindrical guide seat 8 for the sealing member 2, a cylindrical projection 9 acting as a sealing seat for cooperating with the sealing member, and a tubular appendix 11 for protecting the sealing member when the container 4 is under vacuum.
  • the cylindrical recess 22 is delimited by a continuous wall 5 projecting towards the interior of the container 4.
  • the outer face of the cylindrical projection 9 forms the contact and sealing seat 10 between the sealing member 2 and the valve body 1.
  • the tubular appendix 11 of the valve body 1 is provided with at least one region 13 sunken below its upper circular face 14 to form a lead-in for the finger used by the user to open the valve device and hence break the vacuum in the container.
  • the sealing member 2 is advantageously in one piece and is elastic. It is mounted with its conical end 6 facing the inside of the container 4, this end having its maximum diameter exceeding that of the through hole 7 and retaining the sealing member 2 in the valve body 1 after the snap-engagement.
  • the sealing member also comprises a stem 16, a cylindrical portion 17 which cooperates with the guide seat 8 of the valve body 1 to guide this latter, a cylindrical portion 18 the annular face of which defines the sealing surface 19 which cooperates with the face 10 of the valve body 1, and an upper cylindrical portion 12 having a greater cross-section than the preceding parts, and on which the user acts to break the vacuum.
  • the device of the invention is operated in the following manner.
  • the head of a known vacuum-producing apparatus is mounted over the tubular appendix 11. It can be seen that when vacuum is formed in the container 4 the sealing member 2, by the effect of the negative pressure difference created between the outside and the inside of the container by means of the vacuum pump, not shown, associated with said head, comes into contact with the valve body 1 via the surfaces 10 and 19, it being correctly guided by virtue of the cylindrical portion 17 of the sealing member 2 sliding within the guide seat 8 of the valve body 1.
  • the user If the user wishes to extract something from the container 4 under vacuum, he must firstly break the vacuum. To achieve this he presses against the lateral surface 20 of the cylindrical portion 12 of the sealing member 2 in a direction transverse to the vertical axis of the valve device, via the sunken region 13 of the external tubular element 11 of the valve body 1.
  • valve body 1 or sealing member 2 If the user wishes to clean the valve body 1 or sealing member 2, he separates the two parts by simply pressing the appendix 6 so that it passes through the through hole 7, with the consequent separation of the sealing member 2 from the valve body 1.
  • a valve device represents a reliable means which can be easily constructed, including directly on a container lid, and is more advantageous in terms of its use by the user.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)
EP19920112195 1991-07-19 1992-07-17 Sealing valve device particularly for vacuum containers Expired - Lifetime EP0524551B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI910662U 1991-07-19
IT000662 IT222704Z2 (it) 1991-07-19 1991-07-19 Dispositivo valvolare di tenuta in particolare per scomparti sottovuoto

Publications (2)

Publication Number Publication Date
EP0524551A1 EP0524551A1 (en) 1993-01-27
EP0524551B1 true EP0524551B1 (en) 1995-03-08

Family

ID=11359008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920112195 Expired - Lifetime EP0524551B1 (en) 1991-07-19 1992-07-17 Sealing valve device particularly for vacuum containers

Country Status (4)

Country Link
EP (1) EP0524551B1 (it)
DE (1) DE69201610T2 (it)
ES (1) ES2072665T3 (it)
IT (1) IT222704Z2 (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5449079A (en) * 1993-09-20 1995-09-12 Yang; Heng-Te Sealed vacuum container system
US5347918A (en) * 1994-04-06 1994-09-20 Chen Hung Vacuum thermal cooker
US5499735A (en) * 1994-12-20 1996-03-19 Chen; Cin-Chen Closure assembly for vacuum sealed containers
US5702018A (en) * 1995-11-02 1997-12-30 Montgomery; Donald C. Positive seal fermentation lock for wine barrels
IT1307761B1 (it) * 1999-02-05 2001-11-19 Bialetti Ind Spa Coperchio per recipienti.
UA89768C2 (ru) * 2003-12-27 2010-03-10 Формастер С.А. Крышка емкости, в частности, вакуумной емкости для хранения пищевых продуктов
CA2645421A1 (en) 2006-03-14 2007-09-20 The Glad Products Company Vacuum storage container
WO2008131583A1 (fr) * 2007-04-26 2008-11-06 Chen Xinyu Récipient étanche à pompage sous vide

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE409977B (sv) * 1977-09-16 1979-09-17 Lundblad Tage Anordning for alstrande av undertryck i ett med en oppning forsett forvaringskerl
US4984611A (en) * 1989-04-05 1991-01-15 Zojirushi Corporation Vacuum storage device

Also Published As

Publication number Publication date
DE69201610D1 (de) 1995-04-13
ITMI910662V0 (it) 1991-07-19
ES2072665T3 (es) 1995-07-16
DE69201610T2 (de) 1995-09-28
EP0524551A1 (en) 1993-01-27
IT222704Z2 (it) 1995-04-24
ITMI910662U1 (it) 1993-01-19

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