Tool driving or impacting – Processes
Patent
1994-10-19
1996-04-09
Smith, Scott A.
Tool driving or impacting
Processes
173 91, E21B 104, E21B 414
Patent
active
055052703
ABSTRACT:
A pneumatic ground piercing tool has a reversing mechanism than can be operated by remote control but which does not contain a moving valve member inside the tool which become jammed. Such a tool generally includes, as essential components, an elongated tubular housing having a rear opening, a striker disposed for reciprocation within an internal chamber of the housing to impart impacts to a rear impact surface of the anvil for driving the body through the ground, an air distributing mechanism for effecting reciprocation of the striker, a tail assembly mounted in a rear end opening of the housing that secures the striker and air distributing mechanism in the housing, and a reversing mechanism including a supplemental air line capable of supplying compressed air for reverse operation to a radial port in the air distributing mechanism. Opening the supplemental air line to the atmosphere produces a short stroke forward mode of operation useful for operations wherein a less forceful impact is desirable.
REFERENCES:
patent: 3616865 (1971-11-01), Sudnishnikov et al.
patent: 3756328 (1973-09-01), Sudnishnikov et al.
patent: 4250972 (1981-02-01), Schmidt
patent: 4683960 (1987-08-01), Kostylev et al.
patent: 5025868 (1991-06-01), Wentworth et al.
patent: 5050686 (1991-09-01), Jenne
patent: 5109932 (1992-05-01), Bueter et al.
patent: 5172771 (1992-12-01), Wilson
patent: 5199151 (1993-04-01), Wentworth et al.
patent: 5226487 (1993-07-01), Spektor
patent: 5311950 (1994-05-01), Spektor
patent: 5337837 (1994-08-01), Wentworth et al.
Earth Tool L.L.C.
Smith Scott A.
LandOfFree
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