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US3580569A Expired / Lapsed US ⏱️ 0.0 years remaining

Training frame for use in learning how to ride a unicycle or walk on the hands

Assignee: Individual
•
Filing: 1968-10-14
•
Granted: 1971-05-25
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Expires: 1988-10-14
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Abstract

Abstract A unicycle training device in the form of a mobile frame open at the front to the supporting floor between vertical side rails that extend materially above the head of the learner when mounted on the seat of a unicycle between outwardly curved horizontal side rails which are adapted to be grasped by the hands of the learner, who must have freedom for balancing gyrations when so mounted prior to propelling the unicycle through the open front of said frame free of said rails and for other training in balancing free of said frame. The device comprises a pair of Ushaped members mounted on casters and secured together by parallel brackets. The lower bracket is an arc of a circle and spaced about hip high from the floor.

Inventors

  • 👤 Henry Allen Wilson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:23
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/00047; A63B69/00; A63B69/16; A63B69/0064

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 111 words
A training frame for use by a student in learning the art of balancing comprising a pair of U-shaped members, means supporting said frame for movement over a floor, at least one pair of parallel U-shaped brackets secured to the U-shaped members for holding said members in parallel planes normal to the floor, said brackets being mounted with the openings of the U facing in the same direction, the lower one of the brackets being formed as a segment of the circumference of a circle and positioned substantially midway the length of the arms of the U of the members whereby to allow uninhibited movement of the hips of the student.
Claim 2
Dependent Claim 111 words
A training frame for use by a student in learning the art of balancing comprising a pair of U-shaped members, means supporting said frame for movement over a floor, at least one pair of parallel U-shaped brackets secured to the U-shaped members for holding said members in parallel planes normal to the floor, said brackets being mounted with the openings of the U facing in the same direction, the lower one of the brackets being formed as a segment of the circumference of a circle and positioned substantially midway the length of the arms of the U of the members whereby to allow uninhibited movement of the hips of the student.
Claim 3
Dependent Claim 74 words
A device as defined in claim 1 wherein the means for supporting the frame for movement over a floor comprises casters secured to the ends of the legs of the U-shaped members and further including bars secured adjacent the casters on the legs defining a part of the opening and extending toward each other, the distance between the bars being such as to allow a learner to walk on his hands between the bars.

References Cited (Backward Citations)

US320462A Cited
US3195550A Cited
US3237940A Cited
US3273888A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-05-24 1974-11-23 1975-05-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-05-24 1978-11-23 1979-05-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-05-24 1982-11-23 1983-05-25 $7700.00 Window Closed / Lapsed

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