Patent US576779A successfully refreshed from Google Patents.
Patent US4077646A successfully refreshed from Google Patents.
US4077646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicycle trailer
Assignee: Individual
•
Filing: 1976-10-01
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Granted: 1978-03-07
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Expires: 1996-10-01
Abstract
Abstract A bicycle trailer for towing behind a bicycle includes a box-like chassis having a forward end with a tow bar extending forward therefrom for connecting by a universal adjustable hitch means to the saddle post of a bicycle and includes a pair of independent torsion bars for suspending or supporting wheels independently to either side of the chassis with axles extending into and riding in the slot found on the side of the chassis.
Inventors
- 👤 William Andrew Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:32
CPC Classifications
B; B62; B62K; B62K27/00; B62K27/10; B62K27/12; B62K27/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
A trailer adapted to be towed by a bicycle comprising: a box-like body chassis having a slot in each side thereof, a forward end, and a tow bar secured to and extending forward from said forward end; a pair of axles slidably mounted in said slots, torsion bar suspension means connected to said tow bar and to said axles for supporting said pair of axles, one on each side of said body chassis; a wheel rotatably mounted on each axle for supporting said body for translation along the ground; and universal hitch means for connecting said tow bar to a bicycle and including a ball and socket coupling means for permitting said bicycle to lean from the vertical with respect to said trailer.
Claim 2
Dependent Claim
123 words
A trailer adapted to be towed by a bicycle comprising: a box-like body chassis having a slot in each side thereof, a forward end, and a tow bar secured to and extending forward from said forward end; a pair of axles slidably mounted in said slots, torsion bar suspension means connected to said tow bar and to said axles for supporting said pair of axles, one on each side of said body chassis; a wheel rotatably mounted on each axle for supporting said body for translation along the ground; and universal hitch means for connecting said tow bar to a bicycle and including a ball and socket coupling means for permitting said bicycle to lean from the vertical with respect to said trailer.
Claim 3
Dependent Claim
17 words
The trailer according to claim 1 wherein said suspension means include a shock absorber for each wheel.
Claim 4
Dependent Claim
54 words
The trailer of claim 2 wherein said torsion bar suspension means includes a pair of torsion bars each having a central torsion member and a first arm extending from one end thereof parallel to and secured to said tow bar, and a second arm extending from the other end thereof for supporting said axles.
Claim 5
Dependent Claim
26 words
The trailer of claim 3 wherein said central torsion member of said torsion bars each extend horizontally in opposite directions along the front of said chassis.
Claim 6
Dependent Claim
25 words
The trailer of claim 4 wherein said second arm of each of said torsion bars extend downward at a substantially 45° angle to the horizontal.
Claim 7
Dependent Claim
67 words
The trailer of claim 5 wherein said hitch means includes a support member having clamping means on one end thereof for securing to the saddle post of a bicycle and a ball member on the opposite end, thereof; and a socket member on the forward end of said tow bar for receiving said ball member and locking means for locking said ball means in said socket member.
Claim 8
Dependent Claim
36 words
The trailer of claim 6 wherein said ball member is mounted on a selectively pivotal arm on said support member and said socket member is mounted on a selectively pivotal arm on said tow bar member.
References Cited (Backward Citations)
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Cited
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Cited
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US3912292A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-06 | 1981-09-05 | 1982-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-06 | 1985-09-05 | 1986-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-06 | 1989-09-05 | 1990-03-07 | $7700.00 | Window Closed / Lapsed |