Pressure fluid operated percussion tools

Details Pressure fluid operated percussion tools Pressure fluid operated percussion tools

1975-09-12

1977-07-19

Maslousky, Paul E.

Motors: expansible chamber type

Application of motive fluid at different pressures to...

91308, 91317, 91330, 92134, F01L 2506

Patent

active

040361080

ABSTRACT:
In a percussion tool a means is provided for delaying the manifestation, on a valve means sensitive to such change in pressure, of a change in pressure of the fluid applied to the hammer piston at one end thereof and which drives such hammer piston in its working stroke, the valve means being that means which serves to control the inlet and exhaust parts of the fluid circuit which applies pressure to the other end of the piston.

REFERENCES:
patent: 2609791 (1952-09-01), Bohlman
patent: 3184770 (1965-05-01), Phillips et al.
patent: 3425498 (1969-02-01), Bick
patent: 3683746 (1972-08-01), Ramspeck
patent: 3800664 (1974-04-01), Phillips

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