US PATENT SUBCLASS 337 / 315
.~.~.~.~ Piston or plunger

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}
306  DF  .~ Expansible or vaporizable fluid actuated {12}
312  DF  .~.~ With manual or other mechanical contact control means {4}
314  DF  .~.~.~ Reciprocating or sliding motion {1}
315.~.~.~.~ Piston or plunger

DEFINITION

Classification: 337/315

(under subclass 314) Subject matter wherein the reciprocating member is specifically recited as comprising a piston or plunger.

SEE OR SEARCH THIS CLASS, SUBCLASS:

409, for thermally responsive, fusible, combustible or explosive material element switches with reciprocating plunger or piston.

SEE OR SEARCH CLASS

236, Automatic Temperature and Humidity Regulation,

100, for expanding fluid thermostatic actuating means for temperature regulators utilizing a float or piston.

374, Thermal Measuring and Testing,

202, for expanding fluid type thermometers with float or piston.