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Patent US4230332A successfully refreshed from Google Patents.
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US4230332A Expired / Lapsed US ⏱️ 0.0 years remaining

Bicycle frame

Assignee: Individual
•
Filing: 1979-02-14
•
Granted: 1980-10-28
•
Expires: 1999-02-14
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Abstract

Abstract A bicycle frame is comprised of a hollow panel extending between and secured to the tubular steering column and the tubular seat column in lieu of the hollow tubing ordinarily found in bicycle frames. The hollow panel divides into two parallel spaced apart hollow panels which taper downwardly and rearwardly from the tubular seat column to define at the end thereof a support for the rear wheel axle of the bicycle. The hollow panels are each formed from two curved walls joined together along inturned edges with each wall comprised of a lightweight lamination. A seat is vertically adjustable within the tubular seat column and a piston within the tubular seat column is operably connected to the seat so that upon loosening of the seat, reciprocation of the seat and piston will pump air under pressure outwardly through a hose connected at the bottom of the column and detachably secured to the underside of the hollow panel which constitutes the frame.

Inventors

  • 👤 Ferdinand A. Porsche

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 06:03
CPC Classifications
B; B62; B62K; B62K19/00; B62K19/02; B62K19/04; B62K19/08; B62J; B62J11/00; B62J11/02; B62J11/10; B62J11/13; B62J11/16; B62K15/00; B62K15/006; B62K19/30; B62K19/40; B62K19/42

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 112 words
A bicycle frame comprising a hollow tubular steering support column which is formed to receive and rotatably support a handlebar and front wheel fork assembly, a hollow tubular seat support column which is formed to receive and adjustably support a seat assembly, the frame having the form of a hollow panel connected to and extending between said columns, said hollow panel being formed of two side panels which are disposed in spaced apart parallel relation to each other and surround the steering support column and the seat support column, each of said side panels being a three-ply laminate which has thin sheets of material bonded to opposite surfaces of a lightweight core.
Claim 2
Dependent Claim 112 words
A bicycle frame comprising a hollow tubular steering support column which is formed to receive and rotatably support a handlebar and front wheel fork assembly, a hollow tubular seat support column which is formed to receive and adjustably support a seat assembly, the frame having the form of a hollow panel connected to and extending between said columns, said hollow panel being formed of two side panels which are disposed in spaced apart parallel relation to each other and surround the steering support column and the seat support column, each of said side panels being a three-ply laminate which has thin sheets of material bonded to opposite surfaces of a lightweight core.
Claim 3
Dependent Claim 33 words
A bicycle frame according to claim 1, wherein the side panels abut and are connected to one another at the locations where they surround the steering support column and the seat support column.
Claim 4
Dependent Claim 14 words
A bicycle frame according to claim 1, wherein said core is an aluminum honeycomb.
Claim 5
Dependent Claim 15 words
A bicycle frame according to claim 1, wherein said core is formed of balsa wood.
Claim 6
Dependent Claim 14 words
A bicycle frame according to claim 1, wherein said sheets are formed of aluminum.
Claim 7
Dependent Claim 14 words
A bicycle frame according to claim 1, wherein said sheets are formed of fiberglass.
Claim 8
Dependent Claim 32 words
A bicycle frame according to claim 1 or 2, wherein the side panels have upper and lower edges which are curved toward each other and secured to each other in abutting relation.
Claim 9
Dependent Claim 20 words
A bicycle frame according to claim 1 or 2, wherein at least one of said side panels is substantially triangular.
Claim 10
Dependent Claim 32 words
A bicycle frame according to claim 1 or 2, wherein said side panels are of integral, one piece construction and include a connecting portion which is wrapped about the steering support column.

References Cited (Backward Citations)

US849227A Cited
US2182828A Cited
US2370726A Cited
US2525618A Cited
US2537325A Cited
US2866730A Cited
US3201138A Cited
US3233916A Cited
US4005611A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-10-28 1984-04-28 1984-10-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-10-28 1988-04-28 1988-10-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-10-28 1992-04-28 1992-10-28 $7700.00 Window Closed / Lapsed

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