Expansible chamber devices – With inspection window in expansible chamber wall portion – With lock
Patent
1995-01-17
1996-03-26
Lopez, F. Daniel
Expansible chamber devices
With inspection window in expansible chamber wall portion
With lock
92 13, 92 54, 279 402, F01B 3112
Patent
active
055011373
ABSTRACT:
An actuator has a cylinder centered on an axis and a piston axially displaceable in the cylinder, defining therein axially opposite front and rear compartments, and having an axially rearwardly projecting stem. A distributor is axially fixed but rotatable about the axis on the stem offset from the cylinder. The piston and distributor are formed with passages for pressurizing and depressurizing the compartments. At least one control element is fixed on the distributor offset from the cylinder. A sleeve coaxially surrounds the piston stem and forms a rear abutment against which the piston engages in a rearmost position of the piston. Formations on the cylinder and on the sleeve can axially displace the sleeve on the cylinder and fix the sleeve on the cylinder in any of a multiplicity of axially offset positions thereon. Respective front and rear control members extending axially rearward from front and rear bearings on the cylinder and sleeve are engageable with the control element to operate same.
REFERENCES:
patent: 2605748 (1952-08-01), Rasoletti
patent: 4945819 (1990-08-01), Rohm
Dubno Herbert
Lopez F. Daniel
Rohm Gunter Horst
Wilford Andrew
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