Land vehicles – Wheeled – Occupant propelled type
Patent
1978-11-03
1980-07-15
Silverstrim, John P.
Land vehicles
Wheeled
Occupant propelled type
272 73, 280 1191, 280220, 280299, B62M 120, B62H 104
Patent
active
042124808
ABSTRACT:
A convertible exercising bicycle enabling oscillating the bicycle seat and rider, substantially up and down so as to exercise the rider's body by subjecting it to accelerations such as when riding a horse or in jogging or running. Means are provided to convert the bicycle to a fixed exercising machine suitable for indoor use. Also additional means are provided to allow for less strenuous exercise for elderly riders and the like.
REFERENCES:
patent: 642758 (1900-02-01), Runge
patent: 2860890 (1958-11-01), Oxford et al.
patent: 3025080 (1962-03-01), Nelson
patent: 3133747 (1964-05-01), Nelson
patent: 3514117 (1970-05-01), Olsen
patent: 3572758 (1971-03-01), Lee
Mikina John A.
Mikina Stanley J.
McGiehan Donn
Ruano William J.
Silverstrim John P.
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