US PATENT SUBCLASS 73 / 862.338
.~.~.~.~.~ Resistance strain gage

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

862  DF  DYNAMOMETERS {5}
862.08  DF  .~ Responsive to torque {2}
862.191  DF  .~.~ During transmission to an external load {11}
862.321  DF  .~.~.~ By measuring elastic deformation of a torque transmitting member {4}
862.325  DF  .~.~.~.~ Using an electrical sensor {4}
862.338.~.~.~.~.~ Resistance strain gage {1}
862.339  DF  .~.~.~.~.~.~> With noncontact coupling (e.g., rotary transformer)

DEFINITION

Classification: 73/862.338

Resistance strain gage:

(under subclass 862.325) Subject matter wherein the determination is made by measuring a change in electrical resistance of a sensing means comprising an electrical conductor or semiconductor that is stressed by the deflection or distortion of the torque transmitting member.

(1) Note. For purposes of this subclass, a disclosure of strain detecting means affixed to a surface of the elastic member is presumed to be of the resistive type unless otherwise stated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

763+, for determining stress or strain of a test specimen with a strain gage.

862.044, 862.045, 862.474, and 862.627+, for torque or force responsive devices having elastically deformable members using resistance strain gages.

SEE OR SEARCH CLASS

177, Weighing Scales,

211, for a weigher using a strain gage. 338, Electrical Resistors,

2-, 6 for a resistance strain gage, per se.