Rod-clamping means of a percussive air tool for driving into the

Details Rod-clamping means of a percussive air tool for driving into the Rod-clamping means of a percussive air tool for driving into the

1983-02-24

1985-05-14

Meister, James M.

Tool driving or impacting

Hammer or tool shaft reciprocated by gripping means which...

173 92, 173149, E21B 100

Patent

active

045166625

ABSTRACT:
A rod-clamping device comprises an impact load transmission assembly which includes a housing having a through axial cavity and a system of jamming elements, a rocoil force take up assembly which includes a housing having a through axial cavity, a collar sleeve, and a system of jamming elements, and a resilient element adapted to urge the jamming elements in a direction counter to the forces being exerted, the impact load transmission assembly having a sleeve member, each system of the jamming elements in the two assemblies being forced to the housing and the rod being driven by a separate resilient element.

REFERENCES:
patent: 1883070 (1932-10-01), Stone
patent: 3722603 (1973-03-01), Brown
patent: 3792869 (1974-02-01), Braun
patent: 4298074 (1981-11-01), Mattchen

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