Hammer device

Details Hammer device Hammer device

1975-02-12

1976-08-10

Purser, Ernest R.

Tool driving or impacting

Work cleansing

Cleansing fluid pump operated by drive

173 14, 173118, E21B 2100

Patent

active

039736334

ABSTRACT:
A hammer mechanism is disclosed, which incorporates a hammer piston driven by a driving piston via a pressure-gas cushion in a working chamber. The hammer piston controls the transference of flushing gas from the working chamber to the tool during normal operation and has an extreme position in which the hammer piston does not interfere with the transference of flushing gas.

REFERENCES:
patent: 1662801 (1928-03-01), Mercer
patent: 2056293 (1936-10-01), Rasch
patent: 2327619 (1943-08-01), Brown
patent: 3133600 (1964-05-01), Hochreuter
patent: 3570608 (1971-03-01), Erma
patent: 3685593 (1972-08-01), Amtsberg

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