US PATENT SUBCLASS 337 / 393
.~.~ Expansible solid structure or composition of material

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


337 /   HD   ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES

298  DF  THERMALLY ACTUATED SWITCHES {7}
382  DF  .~ With longitudinally expansible solid element {7}
393.~.~ Expansible solid structure or composition of material {3}
394  DF  .~.~.~> Rod, tube or cylinder
395  DF  .~.~.~> Wire or stranded material
396  DF  .~.~.~> Diaphragm, strip or ribbon

DEFINITION

Classification: 337/393

(under subclass 382) Subject matter relating specifically to the physical structure or the composition of matter utilized in the longitudinally deformable thermal responsive element or elements. One example of the structure to be found here includes "thermic couples", consisting of two solid elements having the same or different coefficients of expansion and being rigidly attached at one or more points. When heated, one of the two elements moves relative to the other thereby

providing an actuating force.

(1) Note. For a further filed of search in other classes see SEARCH THIS CLASS, SUBCLASS.

SEE OR SEARCH THIS CLASS, SUBCLASS:

139+, for similar structure in an electrothermally responsive device. For a further filed of search in other classes consult the SEARCH CLASS notes under the subclass definition of subclasses 139+.