US3993322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicycle
Assignee: Individual
•
Filing: 1974-09-11
•
Granted: 1976-11-23
•
Expires: 1994-09-11
Abstract
Abstract Bicycle, in particular a folding bicycle, substantially comprising elements manufactured out of rectangular strips of thin sheet material of substantially the same width which have been folded and bent and with interhooks composed into hollow profiles which may be filled with hard plastic foam.
Inventors
- 👤 Reinder Van Tijen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:25
CPC Classifications
B; B62; B62K; B62K15/00; B62K15/006
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
146 words
In a folding bicycle having a frame divided into at least two parts, one of which is a front part, the two frame parts being hingeable with respect to one another, the improvement comprising a handlebar system composed of four parts hingeable with respect to each other, two lower parts of said handlebar system being hingeably connected with a short standing beam which on the one side is attached hingeably to the front frame part and on the other side is connected with a front wheel support, alongside which the parts of the handlebar system are foldable downwardly on either side, the length of said parts of said handlebar system being such that in the folded position the handle grips connected to the upper parts of the handlebar system come to lie parallel to each other next to the upper edge of the short standing beam.
Claim 2
Dependent Claim
146 words
In a folding bicycle having a frame divided into at least two parts, one of which is a front part, the two frame parts being hingeable with respect to one another, the improvement comprising a handlebar system composed of four parts hingeable with respect to each other, two lower parts of said handlebar system being hingeably connected with a short standing beam which on the one side is attached hingeably to the front frame part and on the other side is connected with a front wheel support, alongside which the parts of the handlebar system are foldable downwardly on either side, the length of said parts of said handlebar system being such that in the folded position the handle grips connected to the upper parts of the handlebar system come to lie parallel to each other next to the upper edge of the short standing beam.
Claim 3
Dependent Claim
39 words
A folding bicycle as defined in claim 1 upper parts of said handlebar system are permanently inter-coupled by hingeably interconnected coupling straps, which in the unfolded position are lockable so as to fix the parts of the handlebar system,
Claim 4
Dependent Claim
43 words
A folding bicycle as defined in claim 1 wherein in the lower parts of the handlebar system two bearing frames are provided hingeably and can be locked with the upper edge of the short standing beam such that they form a parcel carrier.
Claim 5
Dependent Claim
124 words
A folding bicycle comprising: a frame of three parts hingeable with respect to one another, the three parts including a front part, a center part and a rear part, said front part being provided with a hingeably attached short standing beam carrying a foldable handlebar system and with a front wheel support carrying a front wheel, said center part being provided with a movable saddle supporting beam and a treadle mechanism, and said rear part being provided with a rear wheel support carrying a rear wheel; a drive member which is bendable in two directions and connecting said treadle mechanism to said rear wheel, and a tensioning construction connected to said frame parts for locking and tensioning said frame parts in the stretched position.
Claim 6
Dependent Claim
124 words
A folding bicycle comprising: a frame of three parts hingeable with respect to one another, the three parts including a front part, a center part and a rear part, said front part being provided with a hingeably attached short standing beam carrying a foldable handlebar system and with a front wheel support carrying a front wheel, said center part being provided with a movable saddle supporting beam and a treadle mechanism, and said rear part being provided with a rear wheel support carrying a rear wheel; a drive member which is bendable in two directions and connecting said treadle mechanism to said rear wheel, and a tensioning construction connected to said frame parts for locking and tensioning said frame parts in the stretched position.
Claim 7
Dependent Claim
21 words
A folding bicycle according to claim 4 wherein said tensioning construction is mounted substantially in the interior of said frame parts.
Claim 8
Dependent Claim
14 words
A folding bicycle according to claim 4 wherein said drive member comprises a cable.
Claim 9
Dependent Claim
26 words
A folding bicycle according to claim 4, wherein said tensioning construction also fixes said saddle supporting beam in said center frame part in its highest position.
References Cited (Backward Citations)
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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) | 1979-11-23 | 1980-05-24 | 1980-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-23 | 1984-05-24 | 1984-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-23 | 1988-05-24 | 1988-11-23 | $7700.00 | Window Closed / Lapsed |