Drive for a pneumatic hammer

Details Drive for a pneumatic hammer Drive for a pneumatic hammer

1979-05-08

1981-09-08

Maslousky, Paul E.

Motors: expansible chamber type

Cyclically operable

Working member controlled motive fluid for distributor motor

91317, 91325, F01L 2502, F01L 2102

Patent

active

042878101

ABSTRACT:
A pneumatic drive for a hammer tool has a cylinder; a piston slidably received in the cylinder and dividing the inner space of the cylinder into two cylinder chambers; a drive output member formed as a piston rod attached to the piston and projecting from the cylinder; a pressure-responsive valve for admitting compressed air alternately to the cylinder chambers; and a plurality of spaced, serially arranged cylindrical discharge ports in the cylinder wall for releasing compressed air alternately from the cylinder chambers dependent upon the position of the piston with respect to the discharge ports.

REFERENCES:
patent: 1401866 (1921-12-01), Bosch
patent: 2695596 (1954-11-01), Neil
patent: 2899934 (1959-08-01), Salengro
patent: 3053329 (1962-09-01), Fairchild
patent: 3232178 (1966-02-01), Sanduig
patent: 3916982 (1975-11-01), Blower et al.
patent: 4071094 (1978-01-01), Kilin

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