US2738091A - Bottle cap - Google Patents

Bottle cap Download PDF

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Publication number
US2738091A
US2738091A US40322854A US2738091A US 2738091 A US2738091 A US 2738091A US 40322854 A US40322854 A US 40322854A US 2738091 A US2738091 A US 2738091A
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Grant
Patent type
Prior art keywords
cap
bottle
container
portion
liner
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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
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Inventor
Robert G Mattox
Original Assignee
Robert G Mattox
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Publication date
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D51/00Closures not otherwise provided for
    • B65D51/16Closures not otherwise provided for with means for venting air or gas
    • B65D51/1633Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
    • B65D51/1661Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element by means of a passage for the escape of gas between the closure and the lip of the container mouth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D41/00Caps, 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
    • B65D41/02Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/045Discs

Description

March 1956 R. G. MATTOX 2,738,091

BOTTLE CAP Filed Jan. 11, 1954 F1 EL;

FIBE- INVENTOR. v 08587 GMA 770A ATTORMEV:

United States Patent The self-venting bottle cap comprising the present invention is primarily adapted for use in connection with bottles or jugs having reduced threaded neck portions providing relatively narrow mouth openings, although the principles of the invention are applicable for use in con-' nection with jars or other receptacles having wider mouth openings.

A bottle cap such as. described herein is particularly useful in sealing bottles containing fluids which would become contaminated upon contact with air, since the bottle can be filled directly to the top and the air trapped by the cap is vented during the screwing-on operation. Once the bottle cap is in place air cannot re-enter the bottle.

A bottle cap such as disclosed herein is also particularly useful in the storing of certain chemicals which could generate high gas pressures within the container and blow ofi the cap or explode the container.

The principal object of the invention is to provide a cap for a bottle or the like, wherein said cap contains a seal which automatically operates to relieve excessive pressures developed or generated within the bottle, but will not permit gas or liquid from outside the bottle to penetrate therewithin.

Other objects of the present invention will be apparent from the following description taken in connection with the accompanying drawings, wherein:

Fig. l is a perspective view of a bottle cap embodying the principles of my invention, the sealing member being removed and certain parts being broken away to reveal the details of other parts.

Fig. 2 is a bottom view of the bottle cap shown in Fig. 1. V

Fig. 3 is a sectional view of the bottle cap shown in Fig. 1 in place on a bottle, the section being taken along line 3-3 of Fig. 2.

Fig. 4 is a plan view of the sealing member.

Fig. 5 is a sectional view taken on line 55 of Fig. 4.

The reduced neck portion of the bottle is designated at and is provided with inner and outer surfaces that are substantially cylindrical. The usual threads 11 are formed on the neck to accommodate a bottle cap 12 having a depending skirt portion 13 with internal threads 16 formed thereon. The upper rim 14 of the bottle opening provides a flat sealing surfacedesigned for coextensive sealing engagement with a resilient disc-shaped liner 15 mounted within the cap 12.

The inner surface of the cap 12 has a depending cylindrical center portion 17 of slightly smaller diameter than the bottle opening, and a plurality of relatively narrow webs 18 extending radially from said depending center portion to the skirt 13. The height of the center portion 17 and the webs 18 is approximately one-half the thickness of the liner 15.

Under normal conditions of pressure within the bottle, the resilient liner 15 is compressed between the rim 14 and the webs 18, and the portion of the liner adjacent the area between the webs 18 remains in sealing contact with rim 14 by virtue of the inherent resiliency and stiffness of the liner. Under conditions of excessive pressure within the bottle, the liner becomes flexed in the area between the webs 18, and the excess pressure bleeds ott'to the atmosphere through the tortuous path provided by the threads 11.

It is obvious that by varying the resilience (and can sequently the stiflfness) of the liner 15, or the circumferential length between the webs 18, the bottle may automatically be caused to become vented to the atmosphere within reasonably definite ranges of internal pressure.

From the foregoing description it may be seen that the present invention provides a novel form of cap for a container which will permit complete filling of the container since any air trapped in the container will be vented by the cap as it is screwed onto the container.

It is further evident that by employing a novel cap such as disclosed herein any high gas pressure which may be generated within the bottle will be vented to the atmosphere in order to prevent the cap from being blown off or the container from exploding.

While I have shown and described the preferred form of my invention, it is to be understood that various changes may be made in its construction by those skilled in the art Without departing from the spirit of the invention as defined in the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A cap for use on a container having a mouth defined by a top circumferential lip comprising means for interengaging said cap and container for holding said cap to said container, a disc-shaped resilient liner in said cap adapted to sealingly engage said circumferential lip, a depending cylindrical portion in said cap of smaller diameter than the opening in said container, a plurality of webs extending radially from said depending center portion to the skirt portion of said cap for pressing said liner against said hp at a predetermined number of points around said lip.

2. A cap for use on a container having a mouth defined by a top circumferential lip comprising means for interengaging said cap and container for holding said cap to said container, a disc-shaped resilient liner in said cap adapted to sealingly engage said circumferential lip, 8 depending cylindrical portion in said cap of slightly smaller diameter than the opening in said container, a plurality of webs extending radially from said depending center portion to the skirt portion of said cap for pressing said liner against said lip at a predetermined number of points around said lip, the height of said depending center portion and of said webs being approximately one-half the thickness of said resilient liner.

3. A cap for use on a container having a mouth defined by a top circumferential lip comprising means for interengaging on said cap and container for holding said cap to said container, 2. disc-shaped resilent liner in said cap adapted to sealingly engage said circumferential lip, a depending cylindrical portion in said cap of slightly smaller diameter than the opening in said container, a plurality of webs extending radially from said depending center portion to the skirt portion of said cap for pressing said liner against said lip at a predetermined number of points around said lip, the height of said depending center portion and of said webs being approximately one-half the thickness of said resilient liner, and adhesive means fastening said liner to said depending center portion.

References Cited in the file of this patent UNITED STATES PATENTS 1,648,793 Weber Nov. 8, 1927 2,032,931 Gibbs Mar. 3, 1936 2,138,376 Griswold Nov. 29, 1938 2,514,124 Eisen July 4, 1950 2,576,917 Benner Dec. 4, 1951 FOREIGN PATENTS 448.154 Great Britain June 3, 1936

US2738091A 1951-09-11 1954-01-11 Bottle cap Expired - Lifetime US2738091A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US2638091A US2638091A (en) 1951-09-11 1951-09-11 Pelvic traction belt
US2738091A US2738091A (en) 1951-09-11 1954-01-11 Bottle cap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2738091A US2738091A (en) 1951-09-11 1954-01-11 Bottle cap

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US2738091A true US2738091A (en) 1956-03-13

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2965257A (en) * 1959-01-12 1960-12-20 Charles Marchand Company Closure for containers
US3004681A (en) * 1959-09-18 1961-10-17 Charles W Jinkens Two position cap
US3114467A (en) * 1961-08-23 1963-12-17 Bernardin Bottle Cap Company I Self-venting bottle cap
US3189210A (en) * 1963-02-13 1965-06-15 Container Corp Venting closure for containers
US3239091A (en) * 1964-03-24 1966-03-08 Anthony F Driscoll Closure liner with provision for venting
US3595467A (en) * 1968-01-23 1971-07-27 Luigi Goglio Flexible sealed container provided with a one-way safety valve
US5992442A (en) * 1997-05-29 1999-11-30 Urquhart; Edward F. Relief valve for use with hermetically sealed flexible container
US20090008392A1 (en) * 2007-07-05 2009-01-08 De Cleir Piaras Valdis Food Containers Adapted For Accommodating Pressure Changes and Methods of Manufacture

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1648793A (en) * 1926-05-28 1927-11-08 B La Porte Ltd Closure for bottles
US2032931A (en) * 1932-04-09 1936-03-03 Anchor Cap & Closure Corp Closure cap and package
GB448154A (en) * 1935-07-10 1936-06-03 Phoenix Metal Cap Co Inc Improvements in or relating to closures for jars and the like
US2138376A (en) * 1937-09-02 1938-11-29 Owens Illinois Pacific Coast C Closure
US2514124A (en) * 1947-11-20 1950-07-04 Gutmann & Co Ferd Receptacle closure
US2576917A (en) * 1948-09-30 1951-12-04 Armstrong Cork Co Linerless venting closure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1648793A (en) * 1926-05-28 1927-11-08 B La Porte Ltd Closure for bottles
US2032931A (en) * 1932-04-09 1936-03-03 Anchor Cap & Closure Corp Closure cap and package
GB448154A (en) * 1935-07-10 1936-06-03 Phoenix Metal Cap Co Inc Improvements in or relating to closures for jars and the like
US2138376A (en) * 1937-09-02 1938-11-29 Owens Illinois Pacific Coast C Closure
US2514124A (en) * 1947-11-20 1950-07-04 Gutmann & Co Ferd Receptacle closure
US2576917A (en) * 1948-09-30 1951-12-04 Armstrong Cork Co Linerless venting closure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2965257A (en) * 1959-01-12 1960-12-20 Charles Marchand Company Closure for containers
US3004681A (en) * 1959-09-18 1961-10-17 Charles W Jinkens Two position cap
US3114467A (en) * 1961-08-23 1963-12-17 Bernardin Bottle Cap Company I Self-venting bottle cap
US3189210A (en) * 1963-02-13 1965-06-15 Container Corp Venting closure for containers
US3239091A (en) * 1964-03-24 1966-03-08 Anthony F Driscoll Closure liner with provision for venting
US3595467A (en) * 1968-01-23 1971-07-27 Luigi Goglio Flexible sealed container provided with a one-way safety valve
US5992442A (en) * 1997-05-29 1999-11-30 Urquhart; Edward F. Relief valve for use with hermetically sealed flexible container
US20090008392A1 (en) * 2007-07-05 2009-01-08 De Cleir Piaras Valdis Food Containers Adapted For Accommodating Pressure Changes and Methods of Manufacture
US8584876B2 (en) * 2007-07-05 2013-11-19 Kraft Foods Group Brands Llc Food containers adapted for accommodating pressure changes using skip seals and methods of manufacture

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