Patent US4795055A successfully refreshed from Google Patents.
US4795055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container having a pull ring for separation and removal of a lid
Assignee: Rexam AB
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Filing: 1986-08-18
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Granted: 1989-01-03
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Expires: 2006-08-18
Abstract
Abstract An easily-opened container includes a container body (11) with an opening portion and a lid (20) cooperating with the opening portion. The lid has a central lid portion (29) and a peripheral portion located outside this lid portion and sealingly and permanently fixed to the opening portion for closing the container. The central lid portion and the peripheral portion are separated from one another by a weakened portion (22) which extends in the circumferential direction of the opening portion and at least partially around the opening portion. In a restricted region, the opening portion is provided with a recess (17) located beneath the weakened portion. A stripping unit (50) with fulcrum-effect is pivotably supported in a support region (100). The stripping device has a pull member (51) and a pressure member (54), the latter abutting against the outer surface of the lid inside the weakened portion and above the recess in order, on lifting of the pull member, to realize, by pressure against the above-mentioned region, material rupture in the weakened portion and thereby initiate opening of the container.
Inventors
- 👤 Ole Ingemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:01
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/10; B65D77/20; B65D77/2024; B65D77/2068; B65D77/2072; B65D77/2076; B65D77/208; B65D43/00; B65D43/02; B65D43/0235; B65D43/0264; B65D43/0272; B65D51/00; B65D51/18; B65D51/20; B65D2251/00; B65D2251/0003; B65D2251/0006; B65D2251/0018; B65D2251/0068; B65D2251/0093; B65D2401/00; B65D2401/15; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00101; B65D2543/0012; B65D2543/00129; B65D2543/00148; B65D2543/00175; B65D2543/00194; B65D2543/00231; B65D2543/00259; B65D2543/00296; B65D2543/00425; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00509; B65D2543/00518; B65D2543/00537; B65D2543/00546; B65D2543/00824; B65D2543/00861; B65D2543/00879; B65D2577/00; B65D2577/10; B65D2577/20; B65D2577/2041; B65D2577/205; B65D2577/2066; B65D2577/2075; B65D2577/2091
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
208 words
An easily-opened container comprising a container body having an opening portion and a sealed bottom portion, a lid with a central lid portion and a peripheral portion located outside said central lid portion, one or more connection means which sealingly fix said lid to said container body to close said container and opening means, said opening means including a weakened portion located in said lid and formed by a material zone of reduced strength, wherein said weakened portion is located inside said connecting means and extends in the circumferential direction of said opening portion, and at least partly thereabout, said central portion being separable, at said weakened portion, from adjacent regions of said peripheral portion, said opening portion being in a restricted region, provided with a recess located beneath said weakened portion, and wherein said opening means includes a pull unit with fulcrum-effect journaled in a support region, said pull unit comprising a pull member and a pressure member, the latter abutting against the outer surface of said lid in the region of or adjacent to said weakened portion, said weakened portion being located above said recess in order, on lifting of said pull member, to realize, by pressure against said region, material rupture in said weakened portion.
Claim 2
Dependent Claim
208 words
An easily-opened container comprising a container body having an opening portion and a sealed bottom portion, a lid with a central lid portion and a peripheral portion located outside said central lid portion, one or more connection means which sealingly fix said lid to said container body to close said container and opening means, said opening means including a weakened portion located in said lid and formed by a material zone of reduced strength, wherein said weakened portion is located inside said connecting means and extends in the circumferential direction of said opening portion, and at least partly thereabout, said central portion being separable, at said weakened portion, from adjacent regions of said peripheral portion, said opening portion being in a restricted region, provided with a recess located beneath said weakened portion, and wherein said opening means includes a pull unit with fulcrum-effect journaled in a support region, said pull unit comprising a pull member and a pressure member, the latter abutting against the outer surface of said lid in the region of or adjacent to said weakened portion, said weakened portion being located above said recess in order, on lifting of said pull member, to realize, by pressure against said region, material rupture in said weakened portion.
Claim 3
Dependent Claim
21 words
The container as recited in claim 1, wherein said weakened portion consists of a region of reduced thickness in said lid.
Claim 4
Dependent Claim
34 words
The container as recited in claim 1 or 2, wherein said pressure member is provided with an edge located most distal from said support region, said edge being located substantially above said weakened portion.
Claim 5
Dependent Claim
31 words
The container as recited in claim 1, wherein said lid is manufactured of crystallizable plastic material and said weakened portion consists of a material region which, by crystallization, has reduced strength.
Claim 6
Dependent Claim
28 words
The container as recited in claim 1, wherein said opening portion is provided with a flared flange to which the peripheral portion of said lid is sealingly fixed.
Claim 7
Dependent Claim
19 words
The container as recited in claim 5, wherein said peripheral portion of said lid forms a second flared flange.
Claim 8
Dependent Claim
24 words
The container as recited in claim 1, wherein said recess is disposed in conjunction with a corner of said opening portion of said container.
Claim 9
Dependent Claim
17 words
The container as recited in claim 5 or 6, wherein each connection means consists of a weld.
Claim 10
Dependent Claim
22 words
The container as recited in claim 8, wherein the weld is formed by ultrasonic welding, said container being made of plastic material.
Claim 11
Dependent Claim
18 words
The container as recited in claim 1, wherein said pull unit is fixed to the central lid portion.
Claim 12
Dependent Claim
27 words
The container as recited in claim 10, wherein said pull unit is fixed to said central lid portion by means of a rivet-like arrangement of plastic material.
Claim 13
Dependent Claim
19 words
The container as recited in claim 11, wherein said rivet-like arrangement consists of a part integral with said lid.
Claim 14
Dependent Claim
14 words
The container as recited in claim 1, wherein said pull member comprises a pull-ring.
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) | 1992-01-03 | 1992-07-04 | 1993-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-03 | 1996-07-04 | 1997-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-03 | 2000-07-04 | 2001-01-03 | $7700.00 | Window Closed / Lapsed |