US4494898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting plastics members in openings in sheet metal members
Assignee: Crown Packaging UK Ltd
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Filing: 1982-04-23
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Granted: 1985-01-22
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Expires: 2002-04-23
Abstract
Abstract A plastics member (16) is sealingly secured to a sheet metal member (10) by creating in the sheet metal member (10) an opening which is defined by a free edge (14) of the sheet metal, forming-up a marginal region (12) of the sheet metal member (10) around the location of the opening, receiving the plastics member (16) in the opening, and re-forming the marginal region (12) so as to close the opening onto the plastics member (16) and cause the free edge (14) to bite into and seal around the plastics member (16).
Inventors
- 👤 Thomas D. Brownbill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:27
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/40; B29C66/47; B29C66/474; B29C65/00; B29C65/56; B29C65/64; B29C66/01; B29C66/05; B29C66/10; B29C66/12; B29C66/124; B29C66/1244; B29C66/12441; B29C66/70; B29C66/74; B29C66/742; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; F; F16; F16B; F16B17/00; B29C66/71; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49934; Y10T29/53; Y10T29/53709; Y10T29/53717; Y10T29/53726
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
118 words
A method of mounting a plastics member in an opening which is defined in a sheet metal member by a free edge of the sheet metal, comprising forming up a marginal region of the sheet metal member around the location of the opening, receiving the plastics member in the opening, reforming the marginal region and thereby closing the opening onto the plastics member and causing the free edge to bite into and seal around the plastics member, and proving corrugations in the marginal region of the sheet metal member comprising undulations in the sheet metal having alternate peaks and troughs, each commencing at a location spaced from the free edge and extending radially inwardly towards the free edge.
Claim 2
Independent Claim
118 words
A method of mounting a plastics member in an opening which is defined in a sheet metal member by a free edge of the sheet metal, comprising forming up a marginal region of the sheet metal member around the location of the opening, receiving the plastics member in the opening, reforming the marginal region and thereby closing the opening onto the plastics member and causing the free edge to bite into and seal around the plastics member, and proving corrugations in the marginal region of the sheet metal member comprising undulations in the sheet metal having alternate peaks and troughs, each commencing at a location spaced from the free edge and extending radially inwardly towards the free edge.
Claim 3
Dependent Claim
20 words
A method according to claim 1, comprising pre-forming the plastics member, and inserting the plastics member bodily into the opening.
Claim 4
Dependent Claim
24 words
A method according to claim 2, comprising directing the free edge towards the plastics member as the plastics member is inserted into the opening.
Claim 5
Dependent Claim
16 words
A method according to claim 1, comprising molding the plastics member in situ within the opening.
Claim 6
Dependent Claim
17 words
A method according to claim 1, comprising forming the corrugations whilst the marginal region is being re-formed.
Claim 7
Dependent Claim
21 words
A method according to claim 1, comprising cold working the plastics material of the plastics member when received in the opening.
Claim 8
Dependent Claim
27 words
A method according to claim 6, comprising effecting the cold working of the plastics material whilst the marginal region of the sheet metal member is being re-formed.
Claim 9
Dependent Claim
28 words
A method according to claim 6, comprising effecting the cold working of the plastics material after the marginal region of the sheet metal member has been substantially re-formed.
Claim 10
Dependent Claim
28 words
A method according to claim 1 wherein the plastics member is a rivet and the metal blank is a can body, and attaching a handle to the rivet.
Claim 11
Dependent Claim
23 words
The method according to claim 1 wherein the metal blank is a can end and the plastics member is an easy open enclosure.
Claim 12
Dependent Claim
145 words
Apparatus for sealing a plastics member in an opening in a sheet metal member, the sheet metal member having a free edge defining the opening and a marginal region around the location of the opening, comprising first means for forming up the peripheral region of the sheet metal member around the location of the opening, second means for receiving the plastics member in the opening, third means for subsequently reforming the marginal region so as to close the opening onto the plastics member and cause the free edge to bite into and seal around the plastics member, the third means including means for forming corrugations in the marginal region of the sheet metal member, which corrugations comprise undulations in the sheet metal having alternate peaks and troughs, each commencing at a location spaced from the free edge and extending radially inwardly towards the free edge.
Claim 13
Dependent Claim
145 words
Apparatus for sealing a plastics member in an opening in a sheet metal member, the sheet metal member having a free edge defining the opening and a marginal region around the location of the opening, comprising first means for forming up the peripheral region of the sheet metal member around the location of the opening, second means for receiving the plastics member in the opening, third means for subsequently reforming the marginal region so as to close the opening onto the plastics member and cause the free edge to bite into and seal around the plastics member, the third means including means for forming corrugations in the marginal region of the sheet metal member, which corrugations comprise undulations in the sheet metal having alternate peaks and troughs, each commencing at a location spaced from the free edge and extending radially inwardly towards the free edge.
Claim 14
Dependent Claim
31 words
Apparatus according to claim 11, wherein the third means are arranged to cold form the plastics material of the plastics member whilst re-forming the marginal region of the sheet metal member.
Claim 15
Dependent Claim
32 words
Apparatus according to claim 11, wherein the third means are arranged to cold form the plastics material of the plastics member after substantially re-forming the marginal region of the sheet metal member.
Claim 16
Dependent Claim
27 words
The combination of a sheet metal member and a plastics member mounted in an opening in the sheet metal member by a method according to claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-01-22 | 1988-07-23 | 1989-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-22 | 1992-07-23 | 1993-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-22 | 1996-07-23 | 1997-01-22 | $7700.00 | Window Closed / Lapsed |