US4148122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for repairing vehicle bodies
Assignee: Individual
•
Filing: 1977-11-14
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Granted: 1979-04-10
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Expires: 1997-11-14
Abstract
Abstract A method for repairing holes and rust areas in automobile and truck bodies comprising the steps of identifying or providing a cavity behind the hole or rust area, filling said cavity with a moldable plastic material which will harden as a closed cell foam and provide a support base behind the hole or rust area, removing any hardened plastic support material on the surface of the body which does not conform to a desired body surface contour, applying a plastic filler to the area, the plastic filler being selected from the class consisting of a polyester resin and filler mixed with a catalyst or an epoxy resin and filler mixed with a catalyst, and grinding the surface of the plastic filler to a feathered edge at the surface of the metal surface.
Inventors
- 👤 James T. Phillips
- 👤 Henry J. Kandl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:03
CPC Classifications
B; B62; B62D; B62D29/00; B62D29/001; B62D29/002; B29; B29C; B29C73/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49746
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
137 words
A method for repairing holes and rust areas in automobile and truck bodies comprising the steps of: (1) identifying or providing a cavity behind the hole or rust area, (2) filling said cavity with a moldable plastic material which will harden as a closed cell foam and provide a support base behind the hole or rust area, (3) removing any hardened plastic support material on the surface of the body which does not conform to a desired body surface contour, (4) applying a plastic filler to the area, the plastic filler being selected from the class consisting of a polyester resin and filler mixed with a catalyst or an epoxy resin and filler mixed with a catalyst, and (5) grinding the surface of the plastic filler to a feathered edge at the surface of the metal surface.
Claim 2
Independent Claim
137 words
A method for repairing holes and rust areas in automobile and truck bodies comprising the steps of: (1) identifying or providing a cavity behind the hole or rust area, (2) filling said cavity with a moldable plastic material which will harden as a closed cell foam and provide a support base behind the hole or rust area, (3) removing any hardened plastic support material on the surface of the body which does not conform to a desired body surface contour, (4) applying a plastic filler to the area, the plastic filler being selected from the class consisting of a polyester resin and filler mixed with a catalyst or an epoxy resin and filler mixed with a catalyst, and (5) grinding the surface of the plastic filler to a feathered edge at the surface of the metal surface.
Claim 3
Dependent Claim
18 words
The method of claim 1 wherein moldable plastic material is a type which hardens to a solid material.
Claim 4
Dependent Claim
25 words
The method of claim 1 wherein the moldable plastic material is a foam in place type plastic material which hardens as a closed cell foam.
Claim 5
Dependent Claim
16 words
The method of claim 3 wherein the moldable plastic material is a CO 2 blown polyurethane.
Claim 6
Dependent Claim
15 words
The method of claim 3 wherein the moldable plastic material ia a freon blown polyurethane.
Claim 7
Dependent Claim
28 words
The method of claim 3 wherein the area of a hole or rust area exposing a cavity is restricted before filling said cavity with the moldable plastic material.
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) | 1982-04-09 | 1982-10-09 | 1983-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-09 | 1986-10-09 | 1987-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-09 | 1990-10-09 | 1991-04-10 | $7700.00 | Window Closed / Lapsed |