Piston and extensible cylinder therefor

Details Piston and extensible cylinder therefor Piston and extensible cylinder therefor

1976-03-03

1976-12-07

Halvosa, George E. A.

Brakes

Wheel

Axially movable brake element or housing therefor

92 136, 92 51, 188 724, 188196A, 188351, 188369, 192111A, F16D 6552

Patent

active

039957217

ABSTRACT:
An extensible cylinder slidably containing a fluid pressure actuated piston is provided with differential first and second area portions exposed to a piston actuating pressurized fluid and an opposing pressurized fluid which opposing fluid is pressurized by a fluid pressure amplifier or booster responsive to the piston actuating pressurized fluid to maintain a proportional relationship between the pressures of the piston actuating fluid and opposing fluid to thereby generate a force balance on the cylinder. A stop on the cylinder is engaged by the piston upon completion of the piston stroke in the cylinder causing the cylinder to advance with the piston to thereby extend the stroke of the piston. The volumetric requirement of the piston actuating pressurized fluid for a given displacement of the piston is constant regardless of the position of the extensible cylinder.

REFERENCES:
patent: 2625135 (1953-01-01), Pitts
patent: 2716965 (1955-09-01), Klamp
patent: 2961831 (1960-11-01), Brueder
patent: 3915063 (1975-10-01), Dittinger

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