Tool driving or impacting – Impacting devices – With means to cause or control advance of hammer head
Patent
1985-09-20
1987-09-01
Kazenske, E. R.
Tool driving or impacting
Impacting devices
With means to cause or control advance of hammer head
173 14, 173 91, 60593, B25D 902
Patent
active
046902252
ABSTRACT:
A percussive tool comprises a percussion mechanism and a pressure pulser. The percussion mechanism has a hollow housing with a piston hammer arranged thereinside to form two chambers of variable volume. The pressure pulser has a hollow housing and a fluid displacer defining inside the housing a working chamber adapted to alternately communicate with a source of gaseous fluid and the interior of the percussion mechanism. The fluid displacer is intended for forced displacement inside the housing to transmit to the chambers of the percussion mechanism a pulsed pressure of the gaseous fluid which causes the piston hammer to reciprocate. The interior of the percussion mechanism is isolated from the outside, whereas the working chamber of the pressure pulser communicates with at least one of the chambers of the percussion mechanism, the chambers of the percussion mechanism continuously intercommunicating by way of a restrictor passage.
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USSR-"Hand Power Tools" by Sudaleovitch et al, pp. 170, 171, with translan.
Chufistov Sergei A.
Kamensky Veniamin V.
Kostylev Alexandr D.
Tupitsyn Konstantin K.
Tupitsyn Sergei K.
Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk SSSR
Kazenske E. R.
Wolfe James L.
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