Rotary expandable tool with hydraulic internal intensifier

Details Rotary expandable tool with hydraulic internal intensifier Rotary expandable tool with hydraulic internal intensifier

1980-03-19

1982-03-02

Baldwin, Robert D.

Chucks or sockets

Expanding

Collet type

242 72R, 269 481, B23B 3140

Patent

active

043175775

ABSTRACT:
A relatively high fluid pressure actuated rotary arbor or chuck having internal pressure intensifying differential pistons for converting relatively low pressure from an outside supply through a relatively low pressure non-rotating coupling connection. A dual inlet in the non-rotating coupling and associated passages to the larger piston provide for air or hydraulic piston retraction as well as actuation of the intensifying piston.

REFERENCES:
patent: 2711863 (1955-06-01), Grettve
patent: 3922952 (1975-12-01), Roddy et al.
patent: 4040338 (1977-08-01), Wilson et al.
patent: 4147312 (1979-04-01), Secor et al.

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