US PATENT SUBCLASS 173 / 200-- .~ Hammer head driven by pulsating fluid pressure

US PATENT SUBCLASS 173 / 200
.~ Hammer head driven by pulsating fluid pressure

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

90	DF	IMPACTING DEVICES (E.G., HAMMERS) {19}
200		.~ Hammer head driven by pulsating fluid pressure {1}
201	DF	.~.~> Pulsation caused by mechanical movement

DEFINITION

Classification: 173/200

Hammer head driven by pulsating fluid pressure:

(under subclass 90) Apparatus in which a force is applied and subsequently released in rapid succession to a hammer head by a mass of fluid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

13, for a drive motor controlled by a reciprocating drive member being connected to a pulsating fluid column.

SEE OR SEARCH CLASS

60, Power Plants,

537+, for a self-cycling reciprocating motor of the pulsator type that may include a hammer head as a nominal load for the motor.