Patent US4414166A successfully refreshed from Google Patents.
US4414166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser joining of thermoplastic and thermosetting materials
Assignee: International Business Machines Corp
•
Filing: 1982-01-04
•
Granted: 1983-11-08
•
Expires: 2002-01-04
Abstract
Abstract Thermoplastic materials are joined to non-thermoplastic materials such as thermosetting materials by laser radiant energy which causes the thermoplastic material to flow onto the thermosetting material, preferably into a notch or groove or over a shoulder or lip to form a joint by mechanically locking the materials together.
Inventors
- 👤 Paul M. Charlson
- 👤 Clarence R. Schwieters
- 👤 Jun H. Souk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:32
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/20; B23K26/32; B23K26/324; B29; B29C; B29C65/00; B29C65/02; B29C65/14; B29C65/16; B29C65/1629; B29C65/56; B29C65/567; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/47; B29C66/50; B29C66/51; B29C66/54; B29C66/70; B29C66/71; B29C66/73; B29C66/739; B29C66/7392; B29C66/7394; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0838; B29C65/1632; B29C66/472; B29C66/712; B29K; B29K2069/00; B29K2101/00; B29K2101/10; B29K2101/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
76 words
A method for joining thermoplastic material to thermosetting material comprising the steps of: forming a projection locking surface on the thermosetting material, causing the termoplastic material to melt and flow merely by projecting a laser beam to impinge upon the thermoplastic material at the area adjacent to said locking surface, the melted material flowing out of its own plane over said locking surface to form a joint at the interface between the thermosetting and thermoplastic materials.
Claim 2
Independent Claim
76 words
A method for joining thermoplastic material to thermosetting material comprising the steps of: forming a projection locking surface on the thermosetting material, causing the termoplastic material to melt and flow merely by projecting a laser beam to impinge upon the thermoplastic material at the area adjacent to said locking surface, the melted material flowing out of its own plane over said locking surface to form a joint at the interface between the thermosetting and thermoplastic materials.
Claim 3
Dependent Claim
17 words
The method of claim 1 where the beam is projected for about 0.5 seconds to 5 seconds.
Claim 4
Dependent Claim
22 words
The method of claim 1 where the beam is projected at an angle between 10 and 45 degrees from the horizontal axis.
Claim 5
Dependent Claim
34 words
The method of claim 1 where there are at least three locking surfaces formed on said thermosetting part and the thermoplastic material is heated in areas adjacent to said at least three locking surfaces.
Claim 6
Dependent Claim
26 words
The method of claim 1 where there is a notch between the locking surface and the thermoplastic material at the area adjacent to the locking surface.
Claim 7
Dependent Claim
35 words
The method of claim 1 where said thermoplastic material is provided with an angular surface remote from said interface to enable said laser beam to be projected upon said thermoplastic material adjacent to said interface.
References Cited (Backward Citations)
US2052616A
Cited
US2335872A
Cited
US2425104A
Cited
US2431238A
Cited
US2931110A
Cited
US3399018A
Cited
US3398222A
Cited
US3678142A
Cited
US3595948A
Cited
US3627858A
Cited
US3764432A
Cited
US3875648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-07 | 1987-05-09 | 1987-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-07 | 1991-05-09 | 1991-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-07 | 1995-05-09 | 1995-11-08 | $7700.00 | Window Closed / Lapsed |