Amusement devices: toys – Aerodynamically supported or retarded – Having motor-driven propeller
Patent
1985-08-16
1986-12-16
Shay, F. Barry
Amusement devices: toys
Aerodynamically supported or retarded
Having motor-driven propeller
446 59, 185 10, 185 39, 185DIG1, A63H 2702
Patent
active
046294384
ABSTRACT:
A rubber band powered motor for a model airplane is provided having dual parallel drive shafts from which perpendicularly extend through the wing portions of the plane rubber band motor units, which comprise tape rollers, non-elastic tapes, guide rollers and rubber bands. The drive shafts extend through and are fixed to the tape rollers, upon which is wound the non-elastic tapes. The rubber bands are guided around the guide rollers and are connected to the tapes at one end and to the airframe at the other. Gear means are wound to rotate the shafts to wind the tapes so as to stretch the rubber bands. In operation, the bands relax and pull the tapes to turn the shafts and, via an intermediate gear drive train, the propeller. The tapes and gears absorb the sudden burst of rubber band energy and provide for an extended and stable flight.
REFERENCES:
patent: 1365917 (1921-01-01), Hutchinson
patent: 1440126 (1922-12-01), Aust
patent: 1682267 (1928-08-01), Daniel
patent: 1795165 (1931-03-01), Daniel
patent: 1928154 (1933-09-01), Hojnowski
patent: 1936072 (1933-11-01), Roderick
patent: 2098019 (1937-11-01), Weimerskirch
patent: 2437743 (1948-03-01), Hojnowski
patent: 4318455 (1982-03-01), Lapierre
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