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Publication numberUS2726002 A
Publication typeGrant
Publication dateDec 6, 1955
Filing dateAug 28, 1953
Priority dateAug 28, 1953
Publication numberUS 2726002 A, US 2726002A, US-A-2726002, US2726002 A, US2726002A
InventorsDalianis George
Original AssigneeDalianis George
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Safety bottle closure
US 2726002 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent O SAFETY BOTTLE CLOSURE George Dalianis, Wappingers Falls, N. Y.

Application August 28, 1953, Serial No. 377,010

1 Claim. (Cl. 21S-39) This invention relates to improvements in crown cap closures for containers, and more particularly to an improved crown cap bottle closure of the type which provides for escape of bursting pressures from within a bottle, the primary object of the invention being to provide a simpler, more practical, and more reliable closure of this kind which can be made in an attractive, rugged, and serviceable format relatively low cost.

Other important objects and advantageous features of the invention will be apparent from the following description and the accompanying drawing, wherein, for illustration purposes only, a specific embodiment of the invention is set forth in detail.

Figure 1 is a top plan view;

Figure 2 is a bottom plan view;

Figure 3 is a fragmentary transverse vertical section taken through a bottle neck and a closure cap in accordance with the invention applied thereto, the cap being intact; and

Figure 4 is a similar view showing the cap ruptured.

Referring in detail to the drawings, wherein like numerals designate like parts throughout the several views, the numeral 5 generally designates the neck of a conventional bottle, such as a carbonated beverage bottle, having a lateral annular bead 6 and a terminal lip 7.

Shown applied to the bottle neck 5 is a crown cap 8 comprising a cap body preferably of metal having a disclike top wall 9 integral at its peripheral edge with a depending annular side wall 10, formed with circumferentially spaced crimps or corrugations 11, the side wall being embracingly engaged around the bead 6 in the usual manner.

In accordance with the present invention, the usual porous, fragile, and relatively greatly compressible material sealing disc is replaced by a sealing disc 12 of material of greater density and tensile strength, such as plastic material, which nevertheless has sucient compressibility or plasticity to form a good seal with the bottle neck lip 7 when compressed thereon by the metal cap body.

The sealing disc 12 covers the underside 13 of the cap 2,726,002 Patented Dec. 6, 1955 ICC body top wall 9 and has a peripheraledge 14 which engages the inner side of the cap side wall 10, and an underside 15 which engages the bottle mouth lip 7 when the cap 8 is installed under pressure.

The area of the sealing disc 12 in the region of its peripheral edge 14 is of suilicient thickness to provide for good sealing action between the cap top wall 9 and the bottle mouth lip 7. However, at a location preferably at its center the disc is provided with a relatively small and preferably circular weakened area which is preferably achieved by reducing the top and bottom of the disc so as to provide a relatively thin membrane 17 which is thin enough to rupture, as shown in Figure 4, upon development of excessive pressure within the bottle, and thereby preclude bursting of the bottle.

As shown in Figure 3, the membrane 17 is spaced from the top surface 18 of the disc and from the bottom surface 15, and is registered with a circular pressure escape hole 19 which is provided in the cap body wall 9. The

disc around the opposite sides of the membrane 17 are preferably beveled, las indicated at 20 and 21, and the membrane itself is preferably smaller in diameter than the pressure escape hole 19. These formations produce more controlled and uniform disruption of the membrane without damage to the cap body.

What is claimed is: t

In a safety bottle closure, a crown cap comprising a top wall having a depending crimped side wall, said top wall being provided 'with a central pressure escape opening of relatively small diameter, a sealing disc engaging and covering said top wall and having a peripheral edge engaging the cap side wall, said disc having top and bot`V tom surfaces, registered indentations in the top and bottom surfaces, said indentations not being larger in diameter than said escape hole, the material between the indentations constituting a pressure frangible membrane, the indentation in the upper surface of the sealing disc having a peripheral edge beveled in a radially inward and downward direction, said upper indentation having a bottom spaced downwardly from the top wall of the cap.

References Cited inthe le of this patent UNITED STATES PATENTS

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US867904 *Jan 18, 1907Oct 8, 1907American Cork And Seal CompanySeal for bottles.
US940581 *Feb 26, 1909Nov 16, 1909William Walter BreisterFruit-jar.
US1861590 *Oct 8, 1930Jun 7, 1932Crown Cork & Seal CoBottle closure
US2200600 *Feb 2, 1938May 14, 1940Grapp George LClosure for bottles
US2553267 *Oct 9, 1946May 15, 1951Nedoh Andrew RShear diaphragm relief union
US2557120 *Dec 18, 1947Jun 19, 1951Fyr Fyter CoFire extinguisher
FR622758A * Title not available
FR699881A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3074602 *Nov 26, 1958Jan 22, 1963Charlton Shillady MarionPressure relief devices for pressure vessels and methods of making the same
US3189107 *Oct 30, 1961Jun 15, 1965Hughes Tool CoFlushing passageway closures with reverse pressure rupturable portion
US3310193 *Mar 22, 1965Mar 21, 1967Macpherson John WBottle cap
US3357394 *Jun 21, 1965Dec 12, 1967Dresser IndGauge construction
US3637132 *Jan 9, 1970Jan 25, 1972Oscar S GrayPressure release package or container
US3670916 *Feb 19, 1970Jun 20, 1972Arnold L AlpertFood containerization
US3933265 *Sep 19, 1972Jan 20, 1976Karlan Jac HBottle closure
US3966071 *May 1, 1975Jun 29, 1976Northup John DVenting bottle closure
US4139005 *Sep 1, 1977Feb 13, 1979Dickey Gilbert CSafety release pipe cap
US4292332 *Jan 19, 1978Sep 29, 1981Mcham David EContainer for prepackaging, popping and serving popcorn
US4513873 *Jul 27, 1982Apr 30, 1985Rudolf KlaschkaCapacitor can housing, process and apparatus for its manufacture
US6471082 *Dec 17, 1997Oct 29, 2002Rieke CorporationFusible pressure relieving drum closure
US9139342 *Mar 21, 2007Sep 22, 2015Capello Srl.Insert for crown or screw caps for the closure of bottles
US20030189023 *Apr 8, 2003Oct 9, 2003Fabricas Monterrey, S.A. De C.V.Closure cap including film portion
US20100163511 *Mar 17, 2007Jul 1, 2010Giovanni CappelloInsert for crown or screw caps for the closure of bottles.
US20100264109 *Dec 20, 2006Oct 21, 2010Fabricas Monterrey, S.A.DE C.V.Crown-type metal cap with projection indicating pressure or vacuum, and method for making same
US20110253666 *Oct 20, 2011Keller Timothy PLiner-stretching bottle closure body recess and reinforcing insert
EP2865606A1 *Mar 21, 2007Apr 29, 2015Cappello S.r.l.Mechanical clamping caps for the closure of bottles
WO2007108037A1 *Mar 21, 2007Sep 27, 2007Cappello S.R.L.Insert for crown or screw caps for the closure of bottles
U.S. Classification215/260, 116/DIG.270, 215/328, 220/89.2
International ClassificationB65D41/42, B65D51/16
Cooperative ClassificationY10S116/27, B65D51/1638, B65D41/42
European ClassificationB65D51/16D1, B65D41/42