Oscillator actuated hydraulic impulse device

Details Oscillator actuated hydraulic impulse device Oscillator actuated hydraulic impulse device

1980-10-30

1982-08-03

Maslousky, Paul E.

Motors: expansible chamber type

Independently operated timer, delay, pattern or cyclic control

Independent distributor actuation for cyclic control

91 26, 91240, 91243, 91278, 91290, 91321, F15B 2102, F01L 2504, F01L 2102

Patent

active

043422551

ABSTRACT:
An oscillator actuated hydraulic impulse of the type including a spool valve actuated by an alternating signal from an oscillator to switch the hydraulic pressure in a double acting cylinder in order to cause reciprocating motion of a piston which strikes a boring tool. The hydraulic impulse device further includes a means for controlling the transition from the impulse stroke to the return stroke of the piston. In some embodiments, the hydraulic impulse device may further include a means for varying the duration of the impulse stroke and the return stroke of the piston.

REFERENCES:
patent: 1822667 (1931-09-01), Proell
patent: 2955460 (1960-10-01), Stevens et al.
patent: 2965076 (1960-12-01), Zeisloft
patent: 3552269 (1971-01-01), Arndt
patent: 3908767 (1975-09-01), Klemm

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