US3487973A - Gastight container - Google Patents

Gastight container Download PDF

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Publication number
US3487973A
US3487973A US632602A US3487973DA US3487973A US 3487973 A US3487973 A US 3487973A US 632602 A US632602 A US 632602A US 3487973D A US3487973D A US 3487973DA US 3487973 A US3487973 A US 3487973A
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US
United States
Prior art keywords
container
cover portion
sealing ring
atmospheric pressure
recess
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
US632602A
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English (en)
Inventor
Karl-August Wachter
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Individual
Original Assignee
Individual
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Filing date
Publication date
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Application granted granted Critical
Publication of US3487973A publication Critical patent/US3487973A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B25/00—Devices for storing or holding or carrying respiratory or breathing apparatus

Definitions

  • the cover for the container can include, preferably, a ilexible thick-walled rubber cap lying beneath the cover. This rubber cap is to prevent moisture-laden air from entering the container if a leak should occur in the cover.
  • a rescue apparatus container which consists of two or more shells joined by a tightened closure device in the form of a wire, band or the like surrounding the container.
  • the object of this invention is to produce a simply constructed, airtight container for holding a breathing apparatus.
  • a further object is to produce a simple and quick manner of securely closing the container for a permanent hermetic sealing of the container,
  • the airtight container of this invention is especially for holding a breathing apparatus having a lilter medium which is sensitive to moisture.
  • the container is composed of a lower container portion and an upper cover portion which are joined to a sealing ring.
  • the container interior is at such a less than atmospheric pressure that the exterior of the container being under normal outside pressure forces the container portions together under atmospheric pressure alone.
  • a sufciently high vacuum is produced in the container interior so that the lower container portion and upper cover portion are pressed against a sealing ring to produce a satisfactory tight seal.
  • a further feature of the invention is to the method of closing the container in which the ⁇ container portions are 3,487,973 Patented Jan. 6, 1970 ICC placed in a chamber subjected to the amount of less than atmospheric pressure under which the container is to be eventually stored and after the interior of the container has been evacuated of air.
  • the chamber is open to the atmosphere so that the container portions are Sealed to each other by atmospheric pressure before a pressure rise can occur in the interior of the container.
  • FIGURE 1 is a front view of the container of this invention, partly shown in section;
  • FIGURE 2 is a cross-sectional view through a chamber for evacuating air from the container;
  • FIGURE 3 is a view similar to FIGURE 1 showing a modification
  • FIGURE 3a is a cross-sectional view of a detail showing a modied rim construction
  • FIGURE 4 is a view similar to FIGURE 3 of a further modified form of the invention.
  • FIGURE 5 is a cross-sectional view taken on the line 5-5 of FIGURE 4;
  • FIGURE 6 is a front view, partly in section, showing a modified valve form
  • FIGURE 7 is a view similar to FIGURE 6 of another modied valve form.
  • the airtight container is composed of a lower container portion 1 made of sheet metal or extruded synthetic resin and a removable cover portion 2 composed of the same material.
  • the rounded beaded abutting edges 3 and 4 form the uper edge of the portion 1 and the lower edge of the portion 2, respectively.
  • a sealing ring 5 is mounted between these edges.
  • the breathing apparatus 6 is placed within the container.
  • the cover portion 2 has an opening 7 which is closed by a snap plug 8.
  • the top 9 of the cover portion supports a tongue 10 which is preferably integral with the plug 8.
  • This apparatus is composed of a base 11 supporting a cylinder 12 and which has a bore 13 leading to the ⁇ connecting fitting 14.
  • the upper edge of the cylinder 12 is formed as a gutter containing a rubber ring 15 onto which the top 16 can be iitted airtight.
  • T op 16 has an opening 17 surrounded by a valve seat 18 and enclosed by the valve head 19 containing a rubber seal.
  • the valve head is actuated by a double-arm lever 20 connected by a fulcrum 21 connected to the top 16;
  • the valve head 19 is held closed by a spring 22.
  • the top 16 is put in place.
  • the cylinder 12 and the top 16 are of a size such that the interior volume of the chamber is only slightly larger than the container holding the breathing apparatus.
  • Fitting 14 is connected to a vacuum pump to evacuate air in the container to at least the less than atmospheric pressure desired within the container.
  • valve 18 is suddenly opened ⁇ by means of hand lever 20 so that atmospheric pressure is quickly reestablished within the chamber.
  • the container portions 1 and 2 are in this manner pressed against the sealing ring ⁇ 5 before it is possible for an increase in air pressure to occur within the container. This pressure of the portions 1 and 2 against the sealing ring 5 is sufcient to produce a satisfactory and permanent hermetically sealed container.
  • the top 9 of the cover portion 2 has a recess 23 in which the top of the plug 8 and the tongue lie. Therefore, the plug and tongue do not extend outwardly of the outer surface of the cover portion.
  • the sealing ring 5 is enclosed by a ring 24 in order to prevent the sealing ring 5 from mechanical damage.
  • cover portion 2 is provided with a cylindrical metal guide lange 25. This ilange, when the container is closed, extends into a corresponding shoulder 26 in the container portion 1. Sealing ring 5 bears against ilange 25.
  • the cylindrical llange 25 is replaced by a llange 25a integral with container portion 1 and the ring 24 is replaced by a circular llange 24a also integral with portion 1.
  • a trough is thus formed which holds the sealing ring 5.
  • the lower edge of the cover portion 2 can either be beaded or in the form of a ilat ilange 4a.
  • Tear wire 27 is joined to a handle 27a on the cover ring 24. Tear wire 27 extends through sealing ring 5 and terminates in a cutting piece 28 which lies in an opening through the guide flange 25. When cover ring 24 is removed, the cutting piece 28 can be pulled to cut through the sealing ring 5 so that the portions 1 and 2 can be easily separated.
  • FIGURE 4 also shows a less than atmospheric pressure valve 30 mounted in cover portion 2.
  • This valve includes an opening 31 which can be connected to a less than atmospheric pressure line in order to evacuate the interior of the container to less than atmospheric pressure. This makes it possible to evacuate the container without using the apparatus of FIGURE 2. After the container has been evacuated to the desired less than atmospheric pressure, then the connecting line to opening 31 is removed.
  • the valve 30 is constructed as a self-closing check valve.
  • the cover portion 2 has a recess 32.
  • the wall 33 of this recess is as thick as the remaining portion of the cover.
  • a cutting tube 34 is inserted in the recess 32, which tube has a slanted forward end 35. The other end is attached to pressure plate 36. The latter serves as an abutment for a compression spring 37 which bears on the bottom of recess 32. Plate 36 engages a flange ring 38 which can be welded on during nal assembly.
  • Cutting tube 34 has circumferentially positioned bores 39. To make the cutting of the bottom of the recess 32 more easy, a groove or notch 40 is formed in the bottom of the recess and is engaged by the lower edge 35 of the tube 34.
  • FIGURE 7 dilers from that of FIGURE 6 in that the bottom 41 of the recess has indentations 42 formed in a circle to define a breakaway line.
  • the ilange 25 can be compose of synthetic material and be extruded along with either the container portion 1 or the cover portion 2. The same is true with regard to the outer ring 24, such as shown Y in FIGURE 3.
  • An airtight container for a breathing apparatus and especially for an apparatus having a moisture sensitive filter medium comprising a lower container portion, an upper cover portion, airtight sealing ring means joining the container portion to the cover portion, rounded beaded edges on said container portion and cover portion engaging said sealing ring means, cutting tool means mounted on said cover portion for punching a hole through said cover portion, and the interior of said container being under less than atmospheric pressure to hold the container portion and cover portion against said sealing ring means solely by the normal exterior atmospheric pressure.
  • a container as in claim 2 further comprising pressure plate means mounted over said spring means and engaging said cover portion, and said spring means bearing on said pressure plate means and said cover portion, respectively.
  • a container as in claim 4 further comprising breakaway indentations in said recess outlining the area to be punched out by said cutting tool means.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Closures For Containers (AREA)
US632602A 1966-04-30 1967-04-21 Gastight container Expired - Lifetime US3487973A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED50008A DE1282469B (de) 1966-04-30 1966-04-30 Unter Unterdruck stehender, gasdichter Behaelter fuer Atemschutzgeraete und Verfahren zum Verschliessen eines solchen Behaelters

Publications (1)

Publication Number Publication Date
US3487973A true US3487973A (en) 1970-01-06

Family

ID=7052321

Family Applications (1)

Application Number Title Priority Date Filing Date
US632602A Expired - Lifetime US3487973A (en) 1966-04-30 1967-04-21 Gastight container

Country Status (6)

Country Link
US (1) US3487973A (cs)
BE (1) BE697706A (cs)
CS (1) CS182201B2 (cs)
DE (1) DE1282469B (cs)
FR (1) FR1514596A (cs)
NL (1) NL6702586A (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9296543B2 (en) 2012-07-31 2016-03-29 Heb Grocery Company, Lp Vacuum cooler

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926728A1 (de) * 1979-07-03 1981-02-26 Draegerwerk Ag Unter unterdruck stehender, gasdichter behaelter fuer atemschutzgeraete
US5964218A (en) * 1994-08-31 1999-10-12 Lifepro, Inc. Face mask with back-up smoke inhalation protection and method of operation
TW287952B (cs) * 1994-08-31 1996-10-11 Lifepro Inc
DE19538111C2 (de) * 1995-10-13 1999-07-01 Draegerwerk Ag Aufbewahrungsbehälter für ein Atemschutzgerät

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1356224A (en) * 1919-06-25 1920-10-19 Sidmoor S Sager Fruit-jar
US1863122A (en) * 1927-01-06 1932-06-14 Kenward Barrel Company Ltd Nesting barrels or containers
US1985788A (en) * 1931-10-30 1934-12-25 Gore-Lloyd Edmund Vacuum-sealing of canister, bottle, jar, and like container
US2092671A (en) * 1932-02-23 1937-09-07 Hildebrandt Edward Removable top and closure for containers
DE852814C (de) * 1950-04-11 1952-10-20 Jakob Meier Verfahren zum Verschliessen von Behaeltern mit Deckeln
FR61054E (fr) * 1950-04-03 1955-03-23 Dispositif de fermeture pour bocal de conserve
US2742178A (en) * 1952-04-24 1956-04-17 American Machine & Metals Instrument casing
DE1039367B (de) * 1955-12-30 1958-09-18 Draegerwerk Ag Gasdichter Behälter für Atemschutzgeräte
US3133664A (en) * 1961-11-13 1964-05-19 Maurice P Koch Vent for receptacles
US3283941A (en) * 1964-02-11 1966-11-08 Gen Foods Corp Container for hydratable products

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909299C (de) * 1950-10-19 1954-04-15 Draegerwerk Ag Verpackung fuer unter Vakuum aufzubewahrende Gegenstaende, insbesondere Atemschutzgeraete
DE1112901B (de) * 1958-01-21 1961-08-17 Draegerwerk Ag Gas- und wasserdampfdichter Bereitschaftsbehaelter fuer Filterselbstretter
DE1905358U (de) * 1964-07-23 1964-11-26 Auergesellschaft Gmbh Zur aufbewahrung eines atemschutzgeraetes, insbesondere eines selbstretters, dienender behaelter.

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1356224A (en) * 1919-06-25 1920-10-19 Sidmoor S Sager Fruit-jar
US1863122A (en) * 1927-01-06 1932-06-14 Kenward Barrel Company Ltd Nesting barrels or containers
US1985788A (en) * 1931-10-30 1934-12-25 Gore-Lloyd Edmund Vacuum-sealing of canister, bottle, jar, and like container
US2092671A (en) * 1932-02-23 1937-09-07 Hildebrandt Edward Removable top and closure for containers
FR61054E (fr) * 1950-04-03 1955-03-23 Dispositif de fermeture pour bocal de conserve
DE852814C (de) * 1950-04-11 1952-10-20 Jakob Meier Verfahren zum Verschliessen von Behaeltern mit Deckeln
US2742178A (en) * 1952-04-24 1956-04-17 American Machine & Metals Instrument casing
DE1039367B (de) * 1955-12-30 1958-09-18 Draegerwerk Ag Gasdichter Behälter für Atemschutzgeräte
US3133664A (en) * 1961-11-13 1964-05-19 Maurice P Koch Vent for receptacles
US3283941A (en) * 1964-02-11 1966-11-08 Gen Foods Corp Container for hydratable products

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9296543B2 (en) 2012-07-31 2016-03-29 Heb Grocery Company, Lp Vacuum cooler
US9932165B2 (en) 2012-07-31 2018-04-03 Heb Grocery Company, Lp Vacuum cooler
US10464734B2 (en) 2012-07-31 2019-11-05 Heb Grocery Company, Lp Vacuum cooler
US10486888B2 (en) 2012-07-31 2019-11-26 Heb Grocery Company, Lp Vacuum cooler
US10486887B2 (en) 2012-07-31 2019-11-26 Heb Grocery Company, Lp Vacuum cooler
US11319137B2 (en) 2012-07-31 2022-05-03 H-E-B, Lp Vacuum cooler
US11554907B2 (en) 2012-07-31 2023-01-17 H-E-B, Lp Vacuum cooler
US12145791B2 (en) 2012-07-31 2024-11-19 H-E-B, Lp Method for reducing heat transfer into an enclosure of a cooler

Also Published As

Publication number Publication date
BE697706A (cs) 1967-10-02
NL6702586A (cs) 1967-10-31
DE1282469B (de) 1968-11-07
CS182201B2 (en) 1978-04-28
FR1514596A (fr) 1968-02-23

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