Valveless pneumatic hammer

Details Valveless pneumatic hammer Valveless pneumatic hammer

E - Fixed Constructions

21

B

121/13

E21B 4/14 (2006.01) E21C 3/24 (1985.01)

Patent

CA 1266208

Abstract of the disclosure The specification describes a valveless pneumatic hammer of the type which is generally used in well drilling. The hammer includes a hollow casing with a backhead assembly at one end and a bit assembly at the other. A piston is adapted to reciprocate between two positions in response to fluid supply admitted thereto.

508775

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