US3836175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicycle for two
Assignee: Individual
•
Filing: 1972-12-13
•
Granted: 1974-09-17
•
Expires: 1992-12-13
Abstract
Abstract An attachment means for interconnecting two bicycles of similar size in side-by-side relation, of either a man or woman''s design, which is composed of a plurality of lateral rigid rods and connections of the rods to the frames of the bicycles through hinge means at the rear compensating for relative vertical displacement of the bicycles through a hinge type action, which includes shock absorber means, and ball and socket means on the rigid bars interconnecting the forward end of the bicycle frames and steering columns of the bicycles.
Inventors
- 👤 J Burke
- 👤 J Pomerance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:13
CPC Classifications
B; B62; B62K; B62K13/00; B62K13/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
198 words
An attachment means to connect together two bicycles of similar size which are of the type which include a frame with a rear wheel axle socket below and rearwardly of a rider''s seat and a forward steering column journaled to the frame which is bifurcated and includes an axle socket, said means to connect including an upper and lower rigid bar, each having a ball and socket means at its opposite ends, the lower bar connecting the bifurcated steering column of the bicycle and the upper bar connecting the portion of the frame in which the steering column is journaled, and bar means having a longitudinal centerline extending transversely of the frames and adapted to connect the rear portion of the frames to space the rear portions of the frames apart at a predetermined distance equal to the distance of said upper and lower rigid bar and ball and socket means and said bar means having relatively movable portions yieldable to torque about the centerline and including hinge means connecting one of the ends of the rear bar means to each of the bicycle frames for relative swinging movement of each bicycle about a front to rear axis.
Claim 2
Dependent Claim
198 words
An attachment means to connect together two bicycles of similar size which are of the type which include a frame with a rear wheel axle socket below and rearwardly of a rider''s seat and a forward steering column journaled to the frame which is bifurcated and includes an axle socket, said means to connect including an upper and lower rigid bar, each having a ball and socket means at its opposite ends, the lower bar connecting the bifurcated steering column of the bicycle and the upper bar connecting the portion of the frame in which the steering column is journaled, and bar means having a longitudinal centerline extending transversely of the frames and adapted to connect the rear portion of the frames to space the rear portions of the frames apart at a predetermined distance equal to the distance of said upper and lower rigid bar and ball and socket means and said bar means having relatively movable portions yieldable to torque about the centerline and including hinge means connecting one of the ends of the rear bar means to each of the bicycle frames for relative swinging movement of each bicycle about a front to rear axis.
Claim 3
Dependent Claim
38 words
The attachment means as set forth in claim 1 wherein the rear bar portions comprise two mating segments rotatable with respect to one another about their common axis and means to maintain the mating segments in interconnected relation.
Claim 4
Dependent Claim
59 words
The attachment means as set forth in claim 2 wherein a pair of stabilizing struts are provided rigidly connected to the central zone of the rear bar means and each strut having means to connect to the bicycle frame comprising clevis means having an axis in the horizontal plane perpendicular to the longitudinal axis of the rear bar means.
Claim 5
Dependent Claim
80 words
The attachment means as set forth in claim 2 wherein the means to maintain the segments in interconnected relation comprise an annular member on one of the segments with a threaded exterior and a cup-shaped member on the other of the segments in threaded engagement with the segment having the annular member and an extension rigidly secUred to the bar extending to each of the segments, the cup-shaped member having a through bore for rotatably receiving the bar portions therethrough.
Claim 6
Dependent Claim
33 words
The attachment means as set forth in claim 2 wherein the rear bar means is provided with shock absorbing struts interconnecting the lower portion of the bicycle frame and the rear bar means.
Claim 7
Dependent Claim
48 words
The attachment means as set forth in claim 5 wherein the shock absorbing means comprises a cylinder intermediate the length of the shock absorbing strut and spring means in the cylinder, said struts being composed of two segments, the confronting ends of which bear against the spring means.
Claim 8
Dependent Claim
57 words
The attachment means as set forth in claim 1 wherein a pair of stabilizing struts are provided rigidly connected to the central zone of the rear bar means and each strut having means to connect the bicycle frame comprising clevis means having an axis in the horizontal plane perpendicular to the longitudinal axis of the rear bar.
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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |