Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Mechanically coupled in fixed ratio of movement
Patent
1979-11-23
1985-06-25
Weldon, Ulysses
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
Mechanically coupled in fixed ratio of movement
318 8, 318 11, 318 13, 318 15, 310112, H02K 1734
Patent
active
045256551
ABSTRACT:
An electric motor drive system having a first direct current electric motor, a first drive shaft to which the first electric motor is coupled, a second direct current electric motor having a higher power rating than the first, a second drive shaft to which the second electric motor is coupled, the second drive shaft comprising a hollow sleeve with the first drive shaft extending therethrough, an epicyclic gear system comprising a sun gear to which the first drive shaft is coupled, a ring gear to which the second drive shaft is coupled, and planetary gears meshing with both the sun gear and the ring gear, an output drive coupled to the planetary gears, and, a one way rotation restraining means coupled to the ring gear to permit rotation of the ring gear in one direction and to prevent rotation of the ring gear in the other direction.
REFERENCES:
patent: 2436582 (1948-02-01), Lear
patent: 2436936 (1948-03-01), Page
patent: 2685350 (1954-08-01), Falk
patent: 3498569 (1970-03-01), Kjos
patent: 3559008 (1971-01-01), Stut et al.
"Books In Print" 1983-1984, vol. 5, Titles G-D R. R. Bowker Co. New York and London p. 2179.
Rolston George A.
Weldon Ulysses
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