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Patent US4598922A successfully refreshed from Google Patents.
US4598922A
Expired / Lapsed
US
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Bicycle frame
Assignee: Huffy Corp
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Filing: 1982-06-04
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Granted: 1986-07-08
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Expires: 2002-06-04
Abstract
Abstract In a bicycle frame including a plurality of tubes, at least one sleeve coupling connecting two of these tubes together, a separate pipe socket fastened within the sleeve coupling so as to project therefrom, with one of the two tubes being fitted around the pipe socket to contact the exterior surface of the pipe socket, and a layer of a metal adhesive or the like disposed between, and connecting together, the interior surface of the one tube and the exterior surface of the pipe socket, the exterior surface of the pipe socket is mechanically roughened.
Inventors
- 👤 Dieter Kleinebenne
- 👤 Fred Kleinebenne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:07
CPC Classifications
B; B62; B62K; B62K19/00; B62K19/18; B62K19/22; Y; Y10; Y10T; Y10T403/00; Y10T403/55; Y10T403/559
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
114 words
In a bicycle frame including a plurality of tubes made of a light metal at least one sleeve coupling connecting two of these tubes together, a separate pipe socket made of steel, fastened within said sleeve coupling so as to project therefrom, with one of said two tubes being fitted around said pipe socket to contact the exterior surface of said pipe socket, and a layer of non-metallic adhesive disposed between, and connecting together, the interior surface of said tube and the exterior surface of said pipe socket, the improvement wherein said exterior surface is cylindrical in shape along the bonding surface of said socket and is randomly roughened to have a fine-grained surface.
Claim 2
Dependent Claim
114 words
In a bicycle frame including a plurality of tubes made of a light metal at least one sleeve coupling connecting two of these tubes together, a separate pipe socket made of steel, fastened within said sleeve coupling so as to project therefrom, with one of said two tubes being fitted around said pipe socket to contact the exterior surface of said pipe socket, and a layer of non-metallic adhesive disposed between, and connecting together, the interior surface of said tube and the exterior surface of said pipe socket, the improvement wherein said exterior surface is cylindrical in shape along the bonding surface of said socket and is randomly roughened to have a fine-grained surface.
Claim 3
Dependent Claim
21 words
Bicycle frame as defined in claim 1 wherein the roughening is provided over the entire surface area of said exterior surface.
Claim 4
Dependent Claim
28 words
Bicycle frame as defined in claim 1 wherein the roughening is confined to strip-shaped regions of said exterior surface which extend along the length of said pipe socket.
Claim 5
Dependent Claim
21 words
Bicycle frame as defined in claim 1 wherein the end of said pipe socket extending toward said one tube is chamfered.
Claim 6
Dependent Claim
27 words
Bicycle frame as defined in claim 1 wherein said one tube and said sleeve coupling fully abut against one another in the region of said pipe socket.
Claim 7
Dependent Claim
17 words
Bicycle frame as defined in claim 1 wherein said pipe socket is press-fitted into said sleeve coupling.
Claim 8
Dependent Claim
23 words
Bicycle frame as defined in claim 1 wherein said layer of metal adhesive or the like has a thickness of 50 to 300μ.
Claim 9
Dependent Claim
36 words
Bicycle frame as defined in claim 1 wherein said sleeve coupling includes a ring portion enclosing the other of said two tubes and via which said coupling is connected to said other of said two tubes.
Claim 10
Dependent Claim
26 words
Bicycle frame as defined in claim 1 wherein there is a plurality of said sleeve couplings and pipe sockets connecting respective pairs of said tubes together.
Claim 11
Dependent Claim
23 words
Bicycle frame as defined in claim 1, wherein said exterior surface of said pipe socket is randomly roughened by means of sand blasting.
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) | 1989-07-07 | 1990-01-06 | 1990-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-07 | 1994-01-06 | 1994-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-07 | 1998-01-06 | 1998-07-08 | $7700.00 | Window Closed / Lapsed |