Tool driving or impacting – Impacting devices – Impact transmitting anvil
Patent
1978-09-19
1982-05-04
Schroeder, Werner H.
Tool driving or impacting
Impacting devices
Impact transmitting anvil
173DIG2, 173139, 173162R, 92128, B25D 904
Patent
active
043278078
ABSTRACT:
A reciprocating piston jack-hammer is provided with an easily detachable air distribution mechanism, a resilient casing for muffling the noise by the emitted air, and a shock absorbing housing. A cylindrical tube houses the reciprocating piston and has molded thereabout a housing with air channels between the housing and the tube. The handle of the jack-hammer has a cavity and a mechanism which controls the supply of compressed air to the distribution system. The distribution system employs two parts, one disposed in the other, with an oscillating pellet between the two parts, which oscillating pellet serves to distribute the incoming compressed air either to drive the piston or to direct the air to a piston relief channel, thereby returning the piston to the upper position. Upon return of the piston to its upper position, the air is exhausted from the cylinder below the piston out to a muffling exhaust chamber, out to the atmosphere. The cavity communicates with the tube so as to permit the accessibility of the air distributor unit through the handle.
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Falik Andrew M.
Maco-Meudon
Schroeder Werner H.
VanOphem Remy J.
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