Cylinder piston device

Details Cylinder piston device Cylinder piston device

1985-05-16

1986-12-30

Halvosa, George E. A.

Brakes

Internal-resistance motion retarder

Resistance alters relative to direction of thrust member

188300, 18832222, 18832215, 2481882, F16F 950

Patent

active

046322280

ABSTRACT:
In a cylinder piston device two working chambers on both sides of a piston are interconnected by a fluid passage. This fluid passage includes in series a first passage section and a second passage section. The first passage section comprises a first bore and a second bore in parallel. The first bore is always open. The second bore is opened and closed by a throttling valve body in response to the direction of axial movement of the piston. The second passage section is opened or closed selectively by a closure body controlled from outside the cylinder.

REFERENCES:
patent: 1205433 (1916-11-01), Christman
patent: 3192816 (1965-07-01), Zimmerman
patent: 3388883 (1968-06-01), Axthammer et al.
patent: 3828897 (1974-08-01), Nandyal
patent: 4079925 (1978-03-01), Salin
patent: 4230309 (1980-10-01), Schnitzius

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