Extended-travel actuator with clamps on rod and cylinder end for

Details Extended-travel actuator with clamps on rod and cylinder end for Extended-travel actuator with clamps on rod and cylinder end for

1988-08-12

1990-03-13

Garrett, Robert E.

Motors: expansible chamber type

With correlated control of motive fluid and locking means

Sequential operation of locking means and motive fluid control

92 20, 92 28, 92 29, 92117A, F15B 1526, F01B 1502

Patent

active

049074911

ABSTRACT:
The cylinder has a sealed back wall through which the rod passes. A piston assembly mounted on the rod between the back wall and a cylinder front end-piece contains a fluid-pressure-activated clamp. The front end-piece also has a clamp. By sequenced operation alternatively fixing the piston or the cylinder to the rod through the respective clamp, the relative travel of cylinder and rod can be extended to any desired length.

REFERENCES:
patent: 931611 (1909-08-01), Hutchings
patent: 2531907 (1950-11-01), Daubenmeyer
patent: 3133469 (1964-05-01), Ljungberg
patent: 3176590 (1965-04-01), Uhtenwoldt et al.
patent: 3586138 (1971-06-01), Engle
patent: 3597016 (1971-08-01), Gachot
patent: 3805679 (1974-04-01), Wray
patent: 4185539 (1980-01-01), Stratienko

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