US PATENT SUBCLASS 73 / 847-- .~.~ Torsion

US PATENT SUBCLASS 73 / 847
.~.~ Torsion

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

760	DF	SPECIMEN STRESS OR STRAIN, OR TESTING BY STRESS OR STRAIN APPLICATION {12}
788	DF	.~ By loading of specimen (e.g., strength of material test) {16}
847		.~.~ Torsion {1}
848	DF	.~.~.~> To failure

DEFINITION

Classification: 73/847

Torsion:

(under subclass 788) Subject matter where the specimen has an axis and the loading produces an angular deformation about said axis.

(1) Note. Rotation of a plate or other force applying element on or within the specimen is considered a shear, rather than a torsional load.

SEE OR SEARCH THIS CLASS, SUBCLASS:

814, for such loading effected repetitively during the testing operation.

SEE OR SEARCH CLASS

72, Metal Deforming,

299, for metal twisting of general utility.