Examination apparatus with mass balancing for a part thereof whi

Details Examination apparatus with mass balancing for a part thereof whi Examination apparatus with mass balancing for a part thereof whi

1988-11-17

1989-08-15

Look, Edward K.

Motors: expansible chamber type

With motive fluid valve

Relatively movable inlet and exhaust valves for single...

91471, 378179, F15B 1108

Patent

active

048564133

ABSTRACT:
The invention relates to an examination apparatus with a mass balancing device. The balancing device comprises a compressed air cylinder which operates as a gas pressure operated spring. The internal pressure of the cylinder can be controlled, by a pressure control circuit in dependence of the sine of the pivot angle. A pressure control circuit is a control signal supplied by a sine generator. The sine generator generates a signal which is dependent on the sine of the pivot angle.

REFERENCES:
patent: 862867 (1907-08-01), Eggleston
patent: 2828139 (1958-03-01), Lautzenhiser
patent: 2964311 (1960-12-01), Stelzer
patent: 3260164 (1966-07-01), Guentner et al.
patent: 3683748 (1972-08-01), Mahl et al.
patent: 3894476 (1975-07-01), Cobb
patent: 4233516 (1980-11-01), Trepte

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