Method and device for damping the recoil of a work tool connecte

Details Method and device for damping the recoil of a work tool connecte Method and device for damping the recoil of a work tool connecte

1976-03-10

1978-01-17

Hafer, Robert A.

Tool driving or impacting

Processes

173139, 92 85B, B25D 900

Patent

active

040687279

ABSTRACT:
A recoil damping device for a percussive tool comprises a retard piston which is movable in a cushioning chamber. The feeding force and/or the pressure in the supply passage to the cushioning chamber is regulated so that the retard piston is axially free relative to the machine housing.

REFERENCES:
patent: 3168324 (1965-02-01), Kennell
patent: 3266581 (1966-08-01), Cooley et al.
patent: 3451492 (1969-06-01), Ekstrom et al.
patent: 3741072 (1973-06-01), Romell et al.
patent: 3831500 (1974-08-01), Kitamura et al.
patent: 3866690 (1975-02-01), Lance et al.

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