US3772760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of binding the synthetic resinous wall of an opening to a metal insert
Assignee: Individual
•
Filing: 1971-11-05
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Granted: 1973-11-20
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Expires: 1991-11-05
Abstract
Abstract A method of connecting a thermoplastic synthetic resinous wall of an opening with a metal insert which involves placing the insert in the opening with one end thereof extending beyond the edge of the opening and bending the extended portion of the insert by a rolling or flanging operation to form a bead over the edge of the opening and to simultaneously develop sufficient frictional heat to fuse the resin and seal the insert to the wall around the opening.
Inventors
- 👤 R Zlotek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:07
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/56; B29C65/565; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/12; B29C66/122; B29C66/1222; B29C66/1224; B29C66/13; B29C66/131; B29C66/50; B29C66/51; B29C66/53; B29C66/532; B29C66/5324; B29C66/53245; B29C66/53246; B29C66/53247; B60; B60K; B60K15/00; B60K15/03; B60K15/04; F; F01; F01P; F01P11/00; F01P11/02; F01P11/0204; F01P11/0209; F01P11/0214; B29C66/70; B29C66/71; B29L; B29L2031/00; B29L2031/712; B29L2031/7172; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49906; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
97 words
A method of making a homogeneous connection between contacting surfaces of a thermoplastic synthetic resin about an opening and a metal insert in the opening which comprises a. disposing the metal insert in the opening with one end extending out of the opening, and b. flanging said end which extends out of the opening with a rolling or flanging device so that said end is beaded over the edge of the opening while simultaneously developing frictional heat and fusing the thermoplastic resin and causing it to flow and seal the insert to the wall around the opening.
Claim 2
Independent Claim
97 words
A method of making a homogeneous connection between contacting surfaces of a thermoplastic synthetic resin about an opening and a metal insert in the opening which comprises a. disposing the metal insert in the opening with one end extending out of the opening, and b. flanging said end which extends out of the opening with a rolling or flanging device so that said end is beaded over the edge of the opening while simultaneously developing frictional heat and fusing the thermoplastic resin and causing it to flow and seal the insert to the wall around the opening.
Claim 3
Dependent Claim
16 words
The method of claim 1 wherein the synthetic resin is polyethylene, polyvinyl chloride or a polyester.
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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |