Fluid operated gripper

Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Locking device

Reexamination Certificate

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Details

C294S119100, C901S037000

Reexamination Certificate

active

06938938

ABSTRACT:
A fluid power operate gripper has a housing, in which a drive space is located, which contains at least two drive pistons connected or able to be connected with a respective gripping element. The drive pistons divide up the drive space into a plurality of actuating chambers, which are subject to an actuating fluid under the control of control means in a controlled mutually matching manner. Since the drive pistons are not mechanically coupled kinematically variable operation is made possible in this manner.

REFERENCES:
patent: 4611846 (1986-09-01), Feiber et al.
patent: 4783106 (1988-11-01), Nutter
patent: 4784421 (1988-11-01), Alvite′
patent: 4907834 (1990-03-01), dejong et al.
patent: 5163729 (1992-11-01), Borcea et al.
patent: 6390751 (2002-05-01), Jordan et al.
patent: 6598918 (2003-07-01), Null et al.
patent: 3932532 (1991-04-01), None
patent: 2041262 (1980-09-01), None
patent: 51111578 (1976-10-01), None
patent: 101596 (1991-11-01), None
W. Backe, et al., “Programmierbare Greifer mit servopneumatischen Antrieben”,Robotersysteme, vol. 5, No. 1, pp. 57-64 (1989).

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