Drive speed control system utilizing inflatable bladders

Details Drive speed control system utilizing inflatable bladders Drive speed control system utilizing inflatable bladders

1998-05-11

1999-09-21

Wright, Dirk

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid controlled mechanical clutch or brake

475317, 475116, F16H 566

Patent

active

059546085

ABSTRACT:
A drive speed control system having an input shaft and an output shaft in communication with a planetary gear mechanism. The planetary gear mechanism is in communication with a first rotatable drum member and a second rotatable drum member which is positioned radially inward relative to the first rotatable drum member. A first annular inflatable member is positioned radially outwardly of the first rotatable drum member and a second annular inflatable member is positioned radially between the first and second rotatable drum members. The first and second annular inflatable members are in communication with a control system to cause the inflation of the first annular inflatable member to inhibit rotation of the first rotatable drum member and to cause inflation of the second annular inflatable member, when the first annular inflatable member is uninflated, to cause the first rotatable drum member to rotate in unison with the second rotatable drum.

REFERENCES:
patent: 2361357 (1944-10-01), Schmitter
patent: 2371828 (1945-03-01), Kuhns
patent: 2460629 (1949-02-01), Fawick
patent: 2486269 (1949-10-01), Fawick
patent: 2511548 (1950-06-01), Shibles
patent: 2574431 (1951-11-01), Banker
patent: 3448828 (1969-06-01), Goldberg
patent: 3975989 (1976-08-01), Hirmann
patent: 4721016 (1988-01-01), Burandt
patent: 4774857 (1988-10-01), Heine et al.
patent: 5429558 (1995-07-01), Lagarde

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