US3884525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicycle seat structure
Assignee: Individual
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Filing: 1972-11-10
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Granted: 1975-05-20
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Expires: 1992-11-10
Abstract
Abstract Instead of the stamped pressed metal base plate for a saddle seat, there is provided a base of similar general shape made of a semi rigid plastic material of a composition and character and thickness providing adequate stiffness to prevent exessive downward bending by the weight of a rider while allowing limited elastic downward deformation to accomodate rider comfort when the front and rear portions of the base plate are mounted on a frame in a manner that allows the base span (the distance between front and rear mounting points to contract when deformed and spring back to its original form when not loaded.
Inventors
- 👤 Robert H Mesinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:57
CPC Classifications
B; B62; B62J; B62J1/00; B62J1/02; Y; Y10; Y10S; Y10S297/00; Y10S297/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
161 words
A bicycle seat structure comprising: a longitudinally extending base plate having a wide rearward portion and a narrow forward portion, the distance between the longitudinal ends of said portions defining an unstressed for and aft span; a longitudinally extending undercarriage having a rear part and a front part; rear means connecting said rearward portion to said rear part; and front means connecting said forward portion to said front part; one of said means enabling free relative longitudinal movement of the base plate and the undercarriage; said base plate being substantially unstretchable and resiliently deformable to enable limited desired resilient flexing; one of said means operatively connecting said base plate and undercarriage in a manner enabling free shortening and lengthening of said fore and aft span under loading and unloading forces, respectively, on the base plate produced by the rider of the bicycle, the base plate returning to its full length unstressed fore and aft span when unloaded when the rider dismounts.
Claim 2
Dependent Claim
161 words
A bicycle seat structure comprising: a longitudinally extending base plate having a wide rearward portion and a narrow forward portion, the distance between the longitudinal ends of said portions defining an unstressed for and aft span; a longitudinally extending undercarriage having a rear part and a front part; rear means connecting said rearward portion to said rear part; and front means connecting said forward portion to said front part; one of said means enabling free relative longitudinal movement of the base plate and the undercarriage; said base plate being substantially unstretchable and resiliently deformable to enable limited desired resilient flexing; one of said means operatively connecting said base plate and undercarriage in a manner enabling free shortening and lengthening of said fore and aft span under loading and unloading forces, respectively, on the base plate produced by the rider of the bicycle, the base plate returning to its full length unstressed fore and aft span when unloaded when the rider dismounts.
Claim 3
Dependent Claim
41 words
A bicycle seat structure in accordance with claim 1 and wherein said base plate and said undercarriage are separate parts and said base plate has integrated therewith a peripheral edge extending downwardly to affect the desired compliance of the base plate.
Claim 4
Dependent Claim
32 words
A bicycle seat structure in accordance with claim 1 and wherein said front means enables longitudinal movement of the forward portion of the base plate with respect to the rearward portion thereof.
Claim 5
Dependent Claim
49 words
A bicycle seat structure in accordance with claim 1 and wherein said undercarriage includes two elongated truss members, their rear parts being directly fixedly connected to said wide rearward portion of said base plate by said rear means and their front parts being slideably received by said front means.
Claim 6
Dependent Claim
83 words
A bicycle seat structure in accordance with claim 1 and wherein said rear means includes two springs connected to and depending from said wide rearward portion of said base plate and wherein said undercarriage includes two elongated truss members, their rear parts being directly fixedly connected to the bottoms of their respective springs, and their front parts being slideably received by said front means thereby enabling longitudinal movement of said forward portion of the base plate with respect to the rearward portion thereof.
Claim 7
Dependent Claim
42 words
A bicycle seat structure in accordance with claim 2 and wherein a rearward reinforcement and a forward reinforcement depend from said rearward portion and said forward portion of the base plate, respectively, and extend transversely between respective portions of said peripheral edge.
Claim 8
Dependent Claim
104 words
A bicycle seat structure in accordance with claim 6 and Wherein said rear means includes two springs connected to and depending from said wide rearward portion of said base plate and wherein said undercarriage includes two elongated truss members, their rear parts being directly fixedly connected to the bottoms of their respective springs, and wherein said front means includes said forward reinforcement which has open bottom passages extending longitudinally on each side of the longitudinal center line thereof, and said front means includes a retainer plate slideably holding said truss members in said passages, their front parts extending through said passages and terminating therebeyond.
Claim 9
Dependent Claim
111 words
A bicycle seat structure in accordance with claim 6 and wherein said undercarriage includes two elongated truss members, their rear parts being directly fixedly connected to said wide rearward portion of said base plate by said rear means and their front parts being slideably received by said front means; and wherein said front means includes said forward reinforcement which has open bottom passages extending longitudinally on each side of the longitudinal centerline thereof, and said front means includes a retainer plate slideably holding said truss members in said passages, their front parts extending through said passages and terminating therebeyond, the side edges of said retainer plate bottoming on said forward reinforcement.
Claim 10
Dependent Claim
38 words
A bicycle seat structure in accordance with claim 6 and wherein said forward reinforcement has parallel longitudinal holes, and wherein said undercarriage includes two elongated truss members, the front ends of which slideably extend through their respective holes.
Claim 11
Dependent Claim
43 words
A bicycle seat structure in accordance with claim 6 and wherein said forward reinforcement has a countersunk hole therethrough, a rivet fixedly seated in said countersunk hole, said front parts of the truss members being hingedly connected to the bottom of the rivet.
Claim 12
Dependent Claim
48 words
A bicycle seat structure in accordance with claim 6 and wherein said forward reinforcement has a countersunk longitudinal hole therethrough, a rivet seated in said countersunk hole for longitudinal sliding movement therein, said front parts of the truss members being fixedly connected to the bottom of said rivet.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |