Patent US4168846A successfully refreshed from Google Patents.
US4168846A
Expired / Lapsed
US
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Tricycle construction
Assignee: PCA Industries Inc
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Filing: 1977-10-25
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Granted: 1979-09-25
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Expires: 1997-10-25
Abstract
Abstract A novel tricycle wherein a seat and rearward wheel assembly are movable together and are variably secured to a central frame section toward or away from the forward wheel and handlebars in order to accommodate various sizes of riders while maintaining the same weight distribution of riders with respect to the rear wheels.
Inventors
- 👤 Thomas G. Carren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:34
CPC Classifications
B; B62; B62K; B62K5/00; B62K5/02; B62K19/00; B62K19/30; B62K19/36; Y; Y10; Y10T; Y10T403/00; Y10T403/71; Y10T403/7123
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
121 words
A tricycle construction comprising, a central frame section, a forward wheel and handlebar assembly mounted for pivotal steering movement relative to and at one end of said central frame section of one-piece construction, a rearward assembly including two rear wheels and a rear wheel mounting frame and seat of one-piece construction, said central frame section including a "T" section having two oppositely extending flanges and a depending web, said flanges provided with a plurality of longitudinally spaced openings, said seat provided with a plurality of apertures spaced to correspond to the spacing of selected ones of said flange openings, said seat apertures and flange openings being adapted to receive bolts to adjustably secure said seat longitudinally along said central frame section.
Claim 2
Dependent Claim
121 words
A tricycle construction comprising, a central frame section, a forward wheel and handlebar assembly mounted for pivotal steering movement relative to and at one end of said central frame section of one-piece construction, a rearward assembly including two rear wheels and a rear wheel mounting frame and seat of one-piece construction, said central frame section including a "T" section having two oppositely extending flanges and a depending web, said flanges provided with a plurality of longitudinally spaced openings, said seat provided with a plurality of apertures spaced to correspond to the spacing of selected ones of said flange openings, said seat apertures and flange openings being adapted to receive bolts to adjustably secure said seat longitudinally along said central frame section.
Claim 3
Dependent Claim
13 words
The tricycle construction according to claim 1 wherein said flange openings are notches.
Claim 4
Dependent Claim
55 words
The tricycle construction according to claim 2 wherein the underside of said seat includes a flat mounting surface adapted to slidably rest upon the flanged portion of said "T" section, and members depending adjacent to said flanges to closely straddle said "T" section to prevent skewing of said seat relative to said central frame section.
Claim 5
Dependent Claim
35 words
The tricycle construction according to claim 3 wherein said seat includes lateral wheel mounting extensions, a body-torso support and means for mounting said support to said wheel mounting extensions in vertical relationship to said seat.
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) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |