Work holders – With fluid means – Cylinder-piston means in series with additional positioning...
Patent
1986-08-08
1988-02-09
Watson, Robert C.
Work holders
With fluid means
Cylinder-piston means in series with additional positioning...
269228, B23Q 303
Patent
active
047237678
ABSTRACT:
Rotary powered linear actuated clamp having hollow electric motor drive shaft coupled to threaded nut axially retained by reaction roller thrust bearings driving a linear threaded rod having integral toggle linkage actuator guided by anti-friction rollers in linear lateral reaction tracks.
REFERENCES:
patent: 2956188 (1960-10-01), White
patent: 3606252 (1971-09-01), Dorough
patent: 3888464 (1975-06-01), Felsen
patent: 4418899 (1983-12-01), Zimmermann et al.
patent: 4458889 (1984-07-01), McPherson et al.
Harkrader Alan
McPherson Alexander W.
De-Sta-Co Division, Dover Resources, Inc.
Forster Lloyd M.
Watson Robert C.
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