US PATENT SUBCLASS 173 / 93
.~ With anvil arranged to transmit torsional impact to tool

Current as of: June, 1999
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173 /   HD   TOOL DRIVING OR IMPACTING

90  DF  IMPACTING DEVICES (E.G., HAMMERS) {19}
93.~ With anvil arranged to transmit torsional impact to tool {2}
93.5  DF  .~.~> Rotary tool drive having torque responsive impact {1}
93.7  DF  .~.~> Torque transmitted from hammer head traveling axially only

DEFINITION

Classification: 173/93

(under subclass 90) Apparatus including an anvil which is related to a hammer head in such a manner as to transmit a blow from a hammer to the tool to rotate the tool about an axis.

SEE OR SEARCH CLASS

81, Tools,

463+, for a tool combined with torsional impact delivering means.

192, Clutches and Power-Stop Control, appropriate subclass for a clutch which may be suddenly applied to cause a torsional impulse and particularly

3.21+, for a vortex-flow drive and clutch.