Patent US2639087A successfully refreshed from Google Patents.
Patent US4318494A successfully refreshed from Google Patents.
US4318494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easy opening container with vent means
Assignee: Continental Group Inc
•
Filing: 1980-09-26
•
Granted: 1982-03-09
•
Expires: 2000-09-26
Abstract
Abstract A lightweight container of thin metal such as aluminum which is subject to collapse when load is exerted thereagainst wherein the closure and container are made to minimize the application of such load, the container having a pouring neck and the closure having a panel with a groove into which the neck is telescoped and adhesively bonded thereto, the closure being openable by exerting tensile forces thereon for breeching a selected area of the securement of the closure panel to the neck and then fracturing a push-in section of the panel and whereupon minimal forces are required to open the container without imposing undesirable loads thereagainst. The closure also is tamperproof and vents prior to opening.
Inventors
- 👤 William M. Heyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:55
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/16; B65D51/1633; B65D51/1661; B65D17/00; B65D17/28; B65D17/401; B65D17/4012; B65D2205/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
122 words
A closure for a container for pressurized contents comprising a body having a bottom at one end and an end member at the other end, means securing said end member to said body, a score in said end member defining a tear out panel portion, a tab secured to said end member having a nose overlying said panel portion, means securing said tab to said end member outside tear out panel portion, said tab and means securing said tab formed and arranged to rupture said means securing said end member to said body pursuant to lifting of the tab for venting the container, and said tab operative thereafter to rupture the score and push said tear out panel portion into the container.
Claim 2
Dependent Claim
122 words
A closure for a container for pressurized contents comprising a body having a bottom at one end and an end member at the other end, means securing said end member to said body, a score in said end member defining a tear out panel portion, a tab secured to said end member having a nose overlying said panel portion, means securing said tab to said end member outside tear out panel portion, said tab and means securing said tab formed and arranged to rupture said means securing said end member to said body pursuant to lifting of the tab for venting the container, and said tab operative thereafter to rupture the score and push said tear out panel portion into the container.
Claim 3
Dependent Claim
42 words
The invention according to claim 1 and said end member having a peripheral raised portion of U-shape in cross-section defining a groove receiving a portion of said body therein and said means securing the end member to the body comprising an adhesive.
Claim 4
Dependent Claim
29 words
The invention according to claim 2 and said raised portion having a depression therein and said tab extending through said depression below the upper edge of said end member.
Claim 5
Dependent Claim
30 words
The invention according to claim 3 and said U-shaped peripheral portion and body portion at said depression having relatively short overlapping portions facilitating separation thereof upon lifting of the tab.
Claim 6
Dependent Claim
27 words
The invention according to claim 1 and said tab extending beyond the periphery of the end member and having a handle portion angled alongside said body portion.
Claim 7
Dependent Claim
39 words
The invention according to claim 5 and said container being made of thin sheet metal of less than 7 mils in thickness and said closure operative to stress said container in tension during the initial opening of said closure.
Claim 8
Dependent Claim
42 words
The invention according to claim 6 and said closure having portions embracing said body and said tab being disposed to initially peel away a portion of said closure from the body to rupture the means securing said end member to said body.
Claim 9
Dependent Claim
98 words
A lightweight container made of sheet aluminum comprising a body with an integral bottom and a generally conically shaped top having a neck forming a relatively small pour opening, a closure for the opening having a panel with a portion telescoped within said neck, means adhesively securing the neck to said panel portion, means providing a weakened area in said securement of the panel to the neck, said panel having a score therein defining a tear out portion and a tab secured to said panel for rupturing said weakened area and then said score for opening the container.
Claim 10
Dependent Claim
98 words
A lightweight container made of sheet aluminum comprising a body with an integral bottom and a generally conically shaped top having a neck forming a relatively small pour opening, a closure for the opening having a panel with a portion telescoped within said neck, means adhesively securing the neck to said panel portion, means providing a weakened area in said securement of the panel to the neck, said panel having a score therein defining a tear out portion and a tab secured to said panel for rupturing said weakened area and then said score for opening the container.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-03-08 | 1985-09-07 | 1986-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-08 | 1989-09-07 | 1990-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-08 | 1993-09-07 | 1994-03-09 | $7700.00 | Window Closed / Lapsed |