US3415405A - Cap - Google Patents

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Publication number
US3415405A
US3415405A US590090A US59009066A US3415405A US 3415405 A US3415405 A US 3415405A US 590090 A US590090 A US 590090A US 59009066 A US59009066 A US 59009066A US 3415405 A US3415405 A US 3415405A
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US
United States
Prior art keywords
cap
tubular
lip
pressure
container
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
US590090A
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English (en)
Inventor
Rausing Anders Ruben
Ignell Rolf Lennart
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.)
Sobrefina SA
Original Assignee
Sobrefina SA
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 Sobrefina SA filed Critical Sobrefina SA
Application granted granted Critical
Publication of US3415405A publication Critical patent/US3415405A/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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/10—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
    • B65D17/506—Rigid or semi-rigid members, e.g. plugs
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/04—Cup-shaped plugs or like hollow flanged members
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/10—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures
    • B65D47/103—Membranes with a tearing element

Definitions

  • a bottle having an inwardly turned lip at its opening is provided with a tear-oif cap having an outer tubular plug portion designed to sealingly engage said lip and remain in the bottle opening, an inner tubular plug portion having a dome-shaped closed end attached to said outer tubular plug portion at a tear-off connection, and a slot extending upwardly between said outer and inner tubular portions to said tear-off connection which is sealingly closed when the cap is inserted into said bottle opening by inward deflection of said outer tubular portion and/or outward deflection of said inner tubular portion, the latter deflection being promoted by pressure within the bottle and/ or by a disc inserted into said inner tubular portion.
  • the present invention refers to a cap in combination with a container having an inner over-pressure or sub-atmospheric pressure and which container is provided with an inwardly turned lip in the region of its opening.
  • a cap of this kind has previously been suggested in the Belgian Patent No. 666,263 granted July 30, 1965, and which corresponds to United States Patent No. 3,251,499.
  • the container shown in this patent has, as is also the case according to the present invention, an inwardly turned lip in the region of its opening.
  • the cap has a lid portion and a tubular plug portion, which on its end turned to the interior of the container is provided with a flange in a way corresponding to a preferred embodiment of the present invention.
  • the tightening of the container is intended to be obtained by the pressure of engagement between a sharp edge of the lip and said flange.
  • the cap is intended to be made of polythene or a similar kind of plastic material.
  • polythene As most gases have a certain ability of diffusing through polythene, as for example carbon dioxide, one always has to assume a certain loss of gas however effective the tightening means are made.
  • a rather great portion of the diffusing gas passes through two small regions of the cap, which have a reduced thickness. These regions are defined on one hand by the said sealing ring, probably especially the apex portion of the sealing ring, and on the other hand by the region of an opening indication.
  • a first object of the present invention to reduce the said diffusion at the same time as the virtues of the previously proposed constructions are maintained.
  • Another object is to produce a cap which is at least in some measure reclosable.
  • FIG. 1 shows a section throgh a cap according to a first preferred embodiment of the invention
  • FIG. 2 shows the same cap inserted into a container opening
  • FIG. 3 in a somewhat larger scale shows a portion of a cap according to a second preferred embodiment of the invention.
  • FIGS. 1 and 2 generally designates a cap having an axis A.
  • the cap consists of two separable parts, namely an outer tubular plug portion 5 intended to be fixed in the mouth of the container opening, see FIG. 2, and a part capable of being torn ofli and including the portions 3a, 3b, 3c and 4.
  • the connection between the two separable parts is designated 12.
  • a tearing indication is provided in the form of a notch 11 in the connection 12.
  • the notch 11 runs around i the periphery of the connection 12.
  • the container which the cap is intended to close preferably consists of a plastic bottle with a filling material which causes an inner over-pressure such as beer or other carbonated beverages.
  • a portion of the container has been designated by 1.
  • the cap is intended, in the preferred embodiment of the invention, to cooperate with the upper part of the container, i.e. the part nearest the opening which is designed in a special way. This is therefore included together with the cap in the closing device.
  • FIG. 2 shows, how the upper part of the container, hereinafter called the bottle, extends inwardly towards the centre of the bottle opening and downwardly towards the interior of the bottle, so that a lip 6 is formed. To be able to take up existing stresses the lip 6 is designed] thicker than the rest of the bottle wall.
  • 40 designates a reinforcement of the sealing part of the lip.
  • the rounding is designated 41.
  • the sealing of the closing device occurs both between a point 7 on the lip 6 and a surface 23 of a flange 8 associated with the outer tubular part 5, and above all between a sealing ring 30 of triangular cross-section on. the said tubular part 5 and a surface 20 of the inturned lip 6.
  • a slot between the tubular part 5 which is intended to be fixed in the bottle opening and the inner tubular plug part 3b on the tear-off part of the cap has been designated 43 and a depression at the end of the slot 43 in the region of the pulling handle 4 has been designated 34.
  • the function of the depression 34 and the function of a notch (not shown in the figures) provided in the portion 30 and extending from the handle 4 towards the depression 34 is to create a concentration of the pulling forces to a limited region of the connection 12 at the initiation of the opening of the package.
  • a ledge portion 44 in the notch 11 and to reduce the necessary capping pressure designates an annular flange intended, together with the flange 8 to retain the tubular part 5 in the bottle mouth when the tear-off part of the cap is removed.
  • the diffusion of gas through the region 12 will be considerable if nothing is done to prevent it.
  • the diffusion is prevented by blocking the gas flow through the slot 43.
  • This blocking is done in connection with the capping operation by making the diameter of the tubular portion 312 such that the outer tubular portion 5 is pressed inwards into contact with the inner tubular portion 311. Thanks to the fact that the lip 6 is rather stiff, the deformation of the lip will be unimportant. Instead the main deformation will take place in the said outer tubular portion 5.
  • the deformation includes on one hand a general radially directed compression and on the other hand a folding-in of the lower part of the tubular portion 5.
  • the part which is intended to be torn off in connection with the opening of the bottle consists of the portions 3a, 3b, 3c and 4, the portions 312-0 forming a lid which is united with a pulling handle 4.
  • the lid consists of the central substantially dome-shaped portion 3a and the annular portion and the tubular transition portion 3b between the portions 3a and 3c.
  • the central portion 3a is, similarly as the cap as a whole, made from an elastic but yet relatively stiff material, such as HD- or MD-polyethylene.
  • the portion 3a and the tubular portion 3b further have a diameter which is of such size that when the tubular part 5 has been shrunk in connection with the capping, the ridge 46 will well engage the inner wall 47 of the part 5.
  • the portion 30 is slightly thicker in its central part so as to be substantially lens shape.
  • the annular portion 30 is connected to the pulling handle 4.
  • the transition between the annular portion 30 and the tubular one 3b is designated 48.
  • the cap 2 will be subjected to a certain resilient deformation, which has been indicated in FIG. 2 by dash lines. Under the influence of the axially directed components of the pressure the dome-shaped central portion 3a of the cap will tend to be flattened. By this flattening action the diameter of the central portion will expand, whereby the engagement pressure between the surfaces 46 and 47 increases.
  • the cap preferably is so shaped that the engagement region between the surfaces 46 and 47 and the apex of the triangle 30 are in the same plane, designated B in FIG. 2 the increased engagement pressure will be transferred directly via the material in the tubular part 5 to the triangular sealing ring 30.
  • the lid of the cap i.e. the part which has been defined by the portions 3a-c and 4
  • the lid of the cap may according to the preferred embodiment be reused for reclosing the bottle at least when not too great demands are made on the durability and tightness of the closure.
  • the reclosing cap according to the present embodiment of the invention such as it appears from the drawings, holds to an over-pressure as high as about 0.6 kp./cm.
  • the reclosability may, however, be further improved, if the tubular portion 312 of the lid is considerably extended so as to pass beyond the lower edge of the part 5. Thereby an appreciable friction hold is obtained between the parts 3b and 5 at the lower edge of the part 5.
  • the embodiment according to FIG. 3 differs from the cap according to FIGS. 1 and 2 substantially therein that the closure means also includes a disc 51, the diameter of which is somewhat greater than the inner diameter of the lower portion 50 of the tubular portion 312 in the free state of said portion, and which disc 51 is pressed into the center of the cap.
  • the disc 51 is made of a stiff material, e. g. metal.
  • the disc consists of a piece that has been punched out of the container opening in connection with the manufacture of the container. Hereby no extra costs are involved for producing the discs.
  • the disc acts upon the inner tubular portion 3b so as on one hand to make the blocking of the passage 43 more effective and on the other hand to increase the pressure between the sealing ring and the bottle lip.
  • the original shape of the lid portion 3a has been shown by dashed lines.
  • the lid has, referring to the dashed lines, been made somewhat dome-shaped, however, not necessarily so pronouncedly cup-shaped as the lid portion 3a according to the previous embodiment.
  • a tear-off cap type closure member for use with a container provided with a pour opening having an inturned lip, said closure member being made from an elastic material and comprising an outer tubular plug portion which sealingly engages said lip and remains connected with said container, a removable inner tubular plug portion located within said outer plug portion and having a closed inner end and which is joined to said outer plug portion by a relatively narrow annular tear-off portion therebetween located at the outer ends of said plug portions, the tubular parts of said plug portions being initially spaced radially from one another to establish a circular slot therebetween and the inner end of said slot being closed off by contact established between said inner and outer plug portions as said closure member is inserted into said pour opening to effect engagement between said outer plug portion and said inturned lip.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US590090A 1965-11-09 1966-10-27 Cap Expired - Lifetime US3415405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1442365 1965-11-09

Publications (1)

Publication Number Publication Date
US3415405A true US3415405A (en) 1968-12-10

Family

ID=20299081

Family Applications (1)

Application Number Title Priority Date Filing Date
US590090A Expired - Lifetime US3415405A (en) 1965-11-09 1966-10-27 Cap

Country Status (11)

Country Link
US (1) US3415405A (es)
BE (1) BE689410A (es)
BR (1) BR6684426D0 (es)
CH (1) CH466065A (es)
CY (1) CY510A (es)
DE (1) DE1270483B (es)
DK (1) DK113973B (es)
FI (1) FI49579C (es)
GB (1) GB1091837A (es)
NL (1) NL153494B (es)
NO (1) NO118830B (es)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583595A (en) * 1969-02-17 1971-06-08 American Can Co Reinforcement insert for container plug
US3604583A (en) * 1969-08-11 1971-09-14 Robert P Linkletter Container and closure cap therefor
US3638821A (en) * 1970-04-01 1972-02-01 Angelo Guala Di Piergiocomo & Closure for bottles and similar containers
US3797689A (en) * 1971-09-29 1974-03-19 Continental Can Co Tamper-proof closure for a pressurized container
US3874541A (en) * 1971-02-24 1975-04-01 Saint Gobain Bottle stopper
US4078688A (en) * 1976-02-04 1978-03-14 Tetra Pak Developpement Sa Container closure
US4140235A (en) * 1976-07-15 1979-02-20 Tetra Pak Developpement Sa Closing arrangement for packing containers
US4149651A (en) * 1973-04-19 1979-04-17 Tetra Pak Developpement Sa Closure device
US4438864A (en) * 1982-06-09 1984-03-27 Container Corporation Of America Tamperproof closure
EP0112278A1 (de) * 1982-12-21 1984-06-27 BEROLINA International Marketing Strategie GmbH Toner-Nachfüllbehälter
US4706830A (en) * 1981-06-24 1987-11-17 Johnson & Johnson Products, Inc. Vacuum bottle with pressure indicator
US4958744A (en) * 1988-04-12 1990-09-25 Kingsley Nominees Pty. Ltd. Container closure
US5147057A (en) * 1990-10-18 1992-09-15 Hoover Universal, Inc. Inverted closures for beverage containers
US5271519A (en) * 1991-03-05 1993-12-21 Portola Packaging, Inc. One-piece fitment and tethered plug with tamper-evident means
US5385277A (en) * 1993-07-14 1995-01-31 Innovative Consumer Products, Inc. Carbonated beverage bottle handle, pour and storage device
WO1996039329A1 (en) * 1995-06-05 1996-12-12 Valyi Emery I Container and closure assembly and method of making same
US20020179605A1 (en) * 2001-05-29 2002-12-05 Claudia Miani Closable opening device for sealed packages of pourable food products
US20050167390A1 (en) * 2001-12-10 2005-08-04 Hans-Dieter Dubs Container, particularly a beverage bottle
US20050236425A1 (en) * 2002-09-09 2005-10-27 Tetra Laval Holdings & Finance S.A. Closable opening device for packages of pourable food products
US20090101620A1 (en) * 2006-04-18 2009-04-23 O'brien Michael Storage and drinking container
US20110114595A1 (en) * 2009-11-16 2011-05-19 Heiberger Robert A Pour Cap For Fluid Containers Having Open Or Closed Position Communication Structure And Low Temperature Sealing Gasket
CN104309909A (zh) * 2014-09-29 2015-01-28 中山环亚塑料包装有限公司 一种防盗内塞
US20190092536A1 (en) * 2016-03-04 2019-03-28 Csp Technologies, Inc. Container and lid with multiple seals therebetween and methods for making and using the same
US10494986B2 (en) 2017-10-11 2019-12-03 Ford Global Technologies, Llc Low temperature coolant reservoir cap design with air gap for hybrid vehicles

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8004549A (nl) * 1980-03-06 1981-10-01 Elten Tech Ontwickel Bv Opslaginrichting voor produkten met behulp van steunorganen.
GB2180228B (en) * 1985-09-09 1989-09-13 Metal Box Plc Closure for a container
FR2603025B1 (fr) * 1986-08-21 1988-12-02 Simon Jean Bouchon composite pour recipient metallique ou analogue
DE102014107702A1 (de) * 2014-06-02 2015-12-03 Lars Gerold Verschluss für flaschenartige Behältnisse

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2396337A (en) * 1942-11-20 1946-03-12 Moore George Lee Bottle and closure therefor
US3279643A (en) * 1965-01-05 1966-10-18 United Carr Inc Closure member

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109575A (en) * 1959-08-24 1963-11-05 American Can Co Reinforced container closure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2396337A (en) * 1942-11-20 1946-03-12 Moore George Lee Bottle and closure therefor
US3279643A (en) * 1965-01-05 1966-10-18 United Carr Inc Closure member

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583595A (en) * 1969-02-17 1971-06-08 American Can Co Reinforcement insert for container plug
US3604583A (en) * 1969-08-11 1971-09-14 Robert P Linkletter Container and closure cap therefor
US3638821A (en) * 1970-04-01 1972-02-01 Angelo Guala Di Piergiocomo & Closure for bottles and similar containers
US3874541A (en) * 1971-02-24 1975-04-01 Saint Gobain Bottle stopper
US3797689A (en) * 1971-09-29 1974-03-19 Continental Can Co Tamper-proof closure for a pressurized container
US4149651A (en) * 1973-04-19 1979-04-17 Tetra Pak Developpement Sa Closure device
US4078688A (en) * 1976-02-04 1978-03-14 Tetra Pak Developpement Sa Container closure
US4140235A (en) * 1976-07-15 1979-02-20 Tetra Pak Developpement Sa Closing arrangement for packing containers
US4706830A (en) * 1981-06-24 1987-11-17 Johnson & Johnson Products, Inc. Vacuum bottle with pressure indicator
US4438864A (en) * 1982-06-09 1984-03-27 Container Corporation Of America Tamperproof closure
EP0112278A1 (de) * 1982-12-21 1984-06-27 BEROLINA International Marketing Strategie GmbH Toner-Nachfüllbehälter
US4627476A (en) * 1982-12-21 1986-12-09 Berolina International Marketing Strategie Gmbh Toner refill container
WO1987002010A1 (en) * 1982-12-21 1987-04-09 Gerhard Wilcke Toner refill container
US4958744A (en) * 1988-04-12 1990-09-25 Kingsley Nominees Pty. Ltd. Container closure
US5147057A (en) * 1990-10-18 1992-09-15 Hoover Universal, Inc. Inverted closures for beverage containers
US5271519A (en) * 1991-03-05 1993-12-21 Portola Packaging, Inc. One-piece fitment and tethered plug with tamper-evident means
US5385277A (en) * 1993-07-14 1995-01-31 Innovative Consumer Products, Inc. Carbonated beverage bottle handle, pour and storage device
US5661889A (en) * 1995-01-12 1997-09-02 Valyi; Emery I. Process for producing a container and closure assembly
US5826739A (en) * 1995-01-12 1998-10-27 The Elizabeth And Sandor Valyi Foundation, Inc. Cup and closure
WO1996039329A1 (en) * 1995-06-05 1996-12-12 Valyi Emery I Container and closure assembly and method of making same
US20020179605A1 (en) * 2001-05-29 2002-12-05 Claudia Miani Closable opening device for sealed packages of pourable food products
US6820764B2 (en) 2001-05-29 2004-11-23 Tetra Laval Holdings & 'finance Sa Closable opening device for sealed packages of pourable food products
US8573424B2 (en) * 2001-12-10 2013-11-05 Alcoa Deutschland Gmbh Container, particularly a beverage bottle
US20050167390A1 (en) * 2001-12-10 2005-08-04 Hans-Dieter Dubs Container, particularly a beverage bottle
US20050236425A1 (en) * 2002-09-09 2005-10-27 Tetra Laval Holdings & Finance S.A. Closable opening device for packages of pourable food products
US7484641B2 (en) 2002-09-09 2009-02-03 Tetra Laval Holdings & Finance S.A. Closable opening device for packages of pourable food products
US20090101620A1 (en) * 2006-04-18 2009-04-23 O'brien Michael Storage and drinking container
US8360256B2 (en) * 2006-04-18 2013-01-29 Packaging Innovation Limited Storage and drinking container having cap and retaining ring
US20110114595A1 (en) * 2009-11-16 2011-05-19 Heiberger Robert A Pour Cap For Fluid Containers Having Open Or Closed Position Communication Structure And Low Temperature Sealing Gasket
US8584877B2 (en) * 2009-11-16 2013-11-19 Rev 8 Inc. Pour cap for fluid containers having open or closed position communication structure with sound and visual features
CN104309909A (zh) * 2014-09-29 2015-01-28 中山环亚塑料包装有限公司 一种防盗内塞
US20190092536A1 (en) * 2016-03-04 2019-03-28 Csp Technologies, Inc. Container and lid with multiple seals therebetween and methods for making and using the same
AU2017228453B2 (en) * 2016-03-04 2020-04-30 Csp Technologies, Inc. Container and lid
AU2020202108B2 (en) * 2016-03-04 2020-05-21 Csp Technologies, Inc. Container and lid
US10669079B2 (en) * 2016-03-04 2020-06-02 Csp Technologies, Inc. Container and lid with multiple seals therebetween and methods for making and using the same
AU2020202108C1 (en) * 2016-03-04 2020-10-01 Csp Technologies, Inc. Container and lid
US11192698B2 (en) 2016-03-04 2021-12-07 Csp Technologies, Inc. Container and lid with multiple seals therebetween and methods for making and using the same
US11794959B2 (en) 2016-03-04 2023-10-24 Csp Technologies, Inc. Container and lid with multiple seals therebetween and methods for making and using the same
US10494986B2 (en) 2017-10-11 2019-12-03 Ford Global Technologies, Llc Low temperature coolant reservoir cap design with air gap for hybrid vehicles

Also Published As

Publication number Publication date
BR6684426D0 (pt) 1973-07-26
GB1091837A (en) 1967-11-22
BE689410A (es) 1967-04-14
FI49579B (es) 1975-04-30
CH466065A (de) 1968-11-30
DK113973B (da) 1969-05-12
NL6615694A (es) 1967-05-10
FI49579C (fi) 1975-08-11
DE1270483B (de) 1968-06-12
NL153494B (nl) 1977-06-15
NO118830B (es) 1970-02-16
CY510A (en) 1969-12-22

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