Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Locking device
Patent
1997-03-19
1998-07-07
Kramer, Dean
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Locking device
294100, 901 36, B25J 1508
Patent
active
057757550
ABSTRACT:
A tube gripper device includes a one-piece gripper assembly of plastic material having a base portion and a plurality of gripper fingers extending therefrom in spaced apart parallel relation to each other for individual flexing movement relative to the base. A cam member is slidably engageable with each of said fingers and is connected to a solenoid actuator whereby upon energization of the solenoid actuator, the cam member is moveable to spread the fingers apart. A spring is provided for moving the fingers into gripping engagement with a tube upon de-energization of the solenoid actuator.
REFERENCES:
patent: 3576342 (1971-04-01), Page
patent: 3827437 (1974-08-01), Inaba
patent: 4257639 (1981-03-01), Stock
patent: 4555216 (1985-11-01), Buschor
patent: 4705311 (1987-11-01), Ragard
patent: 5407243 (1995-04-01), Riemann
Covert Steven R.
Moore Jeffrey P.
Rhoades John M.
Duratech, Inc.
Kramer Dean
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