Pressure fluid operated percussive tool

Details Pressure fluid operated percussive tool Pressure fluid operated percussive tool

1984-07-23

1986-01-14

Maslousky, Paul E.

Motors: expansible chamber type

Fluid supply through diverse paths to single expansible chamber

Position responsive

91217, 91276, 91321, 173134, F01B 1502

Patent

active

045639388

ABSTRACT:
A cylinder (15) is reciprocable in the housing (11) of a hydraulic percussive tool and a piston hammer (16) is reciprocable in the cylinder. The force between the cylinder and the housing is constant during the cycle of reciprocation and as a result the housing (11) is practically not vibrating at all. The piston hammer (16) and the cylinder (15) are coupled together to move conjointly during a part of each forward stroke of the hammer piston, which ensures the timing of the reciprocation of the hammer piston 16 and the cylinder (15).

REFERENCES:
patent: 303344 (1884-08-01), Uren
patent: 526342 (1894-09-01), Carlinet
patent: 996889 (1911-07-01), Schumacher
patent: 3060894 (1962-10-01), Dean, Jr. et al.

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