Undertaking
Patent
1980-11-13
1982-10-12
Pinkham, Richard C.
Undertaking
187 11, A63B 2304
Patent
active
043535445
ABSTRACT:
A seat equipped frame, vertically slidably supported on an upright pole having handle bars at its upper end, is provided with pedals and a crank angularly rotating a reel about a horizontal axis for winding an elongated flexible member thereon, secured at one end to an intermediate portion of the pole, for lifting the frame and an occupant in response to angular rotation of the reel in one direction. Downward movement of the frame, from its lifted position, is retarded by air trapped below a piston, moved upwardly with the frame, in a tube to form a brake.
REFERENCES:
patent: 109232 (1870-11-01), McKenzie
patent: 555456 (1896-02-01), Littleworth
patent: 583562 (1897-06-01), Woodard
patent: 583920 (1897-06-01), Montgomery
patent: 1110499 (1914-09-01), Laborda
patent: 1110566 (1914-09-01), Laborda
patent: 2562634 (1951-07-01), Nelson
patent: 3126071 (1964-03-01), Basset
Kramer Arnold W.
Pinkham Richard C.
Rhea Robert K.
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