US PATENT SUBCLASS 337 / 81
.~.~.~ Retarded or delayed action type

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

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
36  DF  .~ With bimetallic elements (i.e., motion takes place in a plane at right angles to its major axis) {10}
37  DF  .~.~ With manual or other mechanical contact controlling means {12}
81.~.~.~ Retarded or delayed action type

DEFINITION

Classification: 337/81

(under subclass 37) Subject matter including significant details of means whereby the act of opening or closing of the main switch contacts takes place at an appreciable interval or intervals of time after an actuating force is applied to the contact actuating means or the operative interval is controlled by varying the energizing current applied to the thermal current responsive device; i.e., bimetallic element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88, for electrothermal bimetallic element switch with operation retarding or delaying means.

127, for electrothermal longitudinally expansible element switch with delayed action or timing means.

163+, for electrothermal fusible element switch of the delayed action type.

301+, for thermal switches with mechanical timing means.

341, for thermal bimetallic element switch with time delay. SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

33+, for retarded or delayed acting mechanical switches.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

59+, for retarded or delayed type electromagnetic switches.

361, Electricity: Electrical Systems and Devices,

89, 91.3, and 94+ for safety systems and devices of the time delay type of actuators, and subclasses 195+ for electric circuits for relays and electromagnets with time delay means.