Piston-stroke adjusting mechanism of hydraulic tool

Details Piston-stroke adjusting mechanism of hydraulic tool Piston-stroke adjusting mechanism of hydraulic tool

1987-04-23

1989-05-02

Garrett, Robert E.

Expansible chamber devices

Displacement control of plural cylinders arranged in...

Adjustable abutment positioned within working chamber

92 13, 83639, 30180, 60477, F01B 3114, F15B 1524

Patent

active

048257559

ABSTRACT:
Disclosed is a piston-stroke adjusting mechanism of a hydraulic tool comprising an oil tank, a ram for causing the forced feed of an oil, and a piston permitted to slide by the pressure of a working fluid. The piston is formed with a through bore into which an adjust pin is slidably inserted in a manner that an end thereof is directed toward the bottom of a cylinder. The piston is rotatably mounted with an adapter at its head section. The adapter has a small-diameter portion at one side thereof which is located in the through bore to be connected to the adjust pin.

REFERENCES:
patent: 2556979 (1951-06-01), Purcell
patent: 3058214 (1962-10-01), Mekler
patent: 3080852 (1963-03-01), Geyer
patent: 3626807 (1971-12-01), Shartzer
patent: 3978884 (1976-09-01), Sundstrom
patent: 4031619 (1977-06-01), Gregory
patent: 4149381 (1979-04-01), Meckler
patent: 4206603 (1980-06-01), Mekler

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