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US3954283A Expired / Lapsed US ⏱️ 0.0 years remaining

Tandem tricycle

Assignee: Individual
•
Filing: 1975-02-10
•
Granted: 1976-05-04
•
Expires: 1995-02-10
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Abstract

Abstract A three-wheeled vehicle or tricycle having an elongated frame mounting an auxiliary tricycle seat behind an operator's seat with handle bars and pedals for the auxiliary seat which are not connected to tricycle wheels for providing an auxiliary simulated tricycle arrangement upon a tricycle for small children.

Inventors

  • 👤 Vera L. Boehm
  • 👤 Frederick A. Boehm

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 11:57
CPC Classifications
B; B62; B62K; B62K9/00; B62K9/02

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 103 words
A tricycle comprising an elongated frame having a front steering wheel and a pair of laterally offset rear wheels mounted thereon with a front seat behind the front wheel, a rear seat mounted on said frame behind said front seat and ahead of said rear wheels, auxiliary handle bars pivotally mounted on said frame in extension upwardly therefrom between said seats and auxiliary pedals mounted on said frame below said auxiliary handle bars whereby a rider seated in said rear seat may grip said auxiliary handle bars and turn the handle bars to simulate steering and place his feet on said auxiliary pedals.
Claim 2
Dependent Claim 103 words
A tricycle comprising an elongated frame having a front steering wheel and a pair of laterally offset rear wheels mounted thereon with a front seat behind the front wheel, a rear seat mounted on said frame behind said front seat and ahead of said rear wheels, auxiliary handle bars pivotally mounted on said frame in extension upwardly therefrom between said seats and auxiliary pedals mounted on said frame below said auxiliary handle bars whereby a rider seated in said rear seat may grip said auxiliary handle bars and turn the handle bars to simulate steering and place his feet on said auxiliary pedals.
Claim 3
Dependent Claim 27 words
The tricycle of claim 1 further defined a fork mounting said auxiliary pedals beneath said frame and vertically adjustable mounting means engaging said pedals with said fork.
Claim 4
Dependent Claim 49 words
The tricycle of claim 1 further defined by said auxiliary pedals being mounted upon a crankshaft rotatably carried by a fork depending from said frame beneath said auxiliary handle bars whereby said pedals may be rotated by a rider in said auxiliary seat to simulate pedaling of the tricycle.
Claim 5
Dependent Claim 38 words
The tricycle of claim 3 further defined by means secured to said frame and pivotally mounting said fork and auxiliary handle bars together whereby turning of said auxiliary handle bars also turns said fork and said auxiliary pedals.
Claim 6
Dependent Claim 172 words
A tandem tricycle comprising an elongated tricycle frame, a front fork rotatably mounted in depending relation to the front of said frame and having handle bars atop same above said frame, a front wheel mounted on a crankshaft extending through said fork with pedals on said shaft for pedal propulsion of said tricycle, a front seat mounted on said frame behind said handle bars, a pair of rear wheels axle-mounted at the rear of said frame, an auxiliary seat mounted upon said frame behind said front seat ahead of said rear wheels, auxiliary handle bars mounted on said frame in extension upwardly therefrom between said seats for gripping by a rider in said rear seat, a fork pivotally mounted through said frame between said seats and carrying said auxiliary handle bars atop the fork, a crankshaft rotatably carried by said fork below said frame, and auxiliary pedal means including a pair of pedals on the outer offset ends of said crankshaft for receiving the feet of a rider on said rear seat.
Claim 7
Dependent Claim 172 words
A tandem tricycle comprising an elongated tricycle frame, a front fork rotatably mounted in depending relation to the front of said frame and having handle bars atop same above said frame, a front wheel mounted on a crankshaft extending through said fork with pedals on said shaft for pedal propulsion of said tricycle, a front seat mounted on said frame behind said handle bars, a pair of rear wheels axle-mounted at the rear of said frame, an auxiliary seat mounted upon said frame behind said front seat ahead of said rear wheels, auxiliary handle bars mounted on said frame in extension upwardly therefrom between said seats for gripping by a rider in said rear seat, a fork pivotally mounted through said frame between said seats and carrying said auxiliary handle bars atop the fork, a crankshaft rotatably carried by said fork below said frame, and auxiliary pedal means including a pair of pedals on the outer offset ends of said crankshaft for receiving the feet of a rider on said rear seat.

References Cited (Backward Citations)

US1250665A Cited
US1295804A Cited
US2320344A Cited
US2644345A Cited
US2948551A Cited
US3717360A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-05-04 1979-11-03 1980-05-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-05-04 1983-11-03 1984-05-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-05-04 1987-11-03 1988-05-04 $7700.00 Window Closed / Lapsed

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