US PATENT SUBCLASS 219 / 89-- .~.~.~ Fluid pressure actuated electrode

US PATENT SUBCLASS 219 / 89
.~.~.~ Fluid pressure actuated electrode

Current as of: June, 1999
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219 /	HD	ELECTRIC HEATING

50	DF	METAL HEATING (E.G., RESISTANCE HEATING) {19}
78.01	DF	.~ For bonding with pressure (e.g., resistance welding) {16}
86.1	DF	.~.~ By spot bonding {12}
89		.~.~.~ Fluid pressure actuated electrode

DEFINITION

Classification: 219/89

(under subclass 86.1) Subject matter in which the electrode is actuated by fluid pressure means.

(1) Note. The electrode may, for example, have a hydraulic cylinder attached to it to obtain a high clamping or indenting force.

SEE OR SEARCH THIS CLASS, SUBCLASS:

418, Rotary Expansible Chamber Devices, appropriate subclasses for rotary expansible chamber type pumps or motors, per se.

SEE OR SEARCH CLASS

91, Motors: Expansible Chamber Type, appropriate subclasses, for miscellaneous fluid pressure actuated motors.