US PATENT SUBCLASS 148 / 563-- .~.~ Mechanical memory (e.g., shape memory, heat-recoverable, etc.)

US PATENT SUBCLASS 148 / 563
.~.~ Mechanical memory (e.g., shape memory, heat-recoverable, etc.)

Current as of: June, 1999
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148 /	HD	METAL TREATMENT

95	DF	PROCESS OF MODIFYING OR MAINTAINING INTERNAL PHYSICAL STRUCTURE (I.E., MICROSTRUCTURE) OR CHEMICAL PROPERTIES OF METAL, PROCESS OF REACTIVE COATING OF METAL AND PROCESS OF CHEMICAL-HEAT REMOVING (E.G., FLAME-CUTTING, ETC.) OR BURNING OF METAL {17}
559	DF	.~ Heating or cooling of solid metal {22}
563		.~.~ Mechanical memory (e.g., shape memory, heat-recoverable, etc.)

DEFINITION

Classification: 148/563

Mechanical memory (e.g., shape, heat-recoverable, etc.):

(under subclass 559) Process wherein a metal or metal alloy having the ability when originally shaped at a first temperature and reshaped at a second temperature to undergo a reversible thermoelastic transition and resume its original shape when returned to the first temperature or an intermediate temperature is produced or treated in a process under the Class 148 definition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

402, for stock material exhibiting a mechanical memory effect.