Work holders – With fluid means – Cylinder-piston means directly moves jaw
Patent
1990-03-30
1991-03-12
Watson, Robert C.
Work holders
With fluid means
Cylinder-piston means directly moves jaw
269 71, 269152, B23Q 318
Patent
active
049987127
ABSTRACT:
The base (12) of the fixture apparatus carries four fingers (22)-(28) which define the top plane of the printed wiring board (14). The fingers move out of active position to permit placement of the board in a frame (16). The frame rests on lifter assemblies (46-52) which raise the printed wiring board into contact with the fingers.
REFERENCES:
patent: 3395439 (1968-08-01), Palesi et al.
patent: 3775644 (1973-11-01), Cotner et al.
patent: 3883128 (1975-05-01), Breese
patent: 4189230 (1980-02-01), Zasio
patent: 4473455 (1984-09-01), Dean
patent: 4548392 (1985-10-01), Rickling
patent: 4573263 (1986-03-01), Rossi
patent: 4877228 (1989-10-01), Ripert
Leung Han C.
Park Joon
Pelzman George
Taketani Stanley
Alkov Leonard A.
Denson-Low W. K.
Hughes Aircraft Company
Watson Robert C.
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