US PATENT SUBCLASS 335 / 194
.~.~ With pressure-maintaining or adjusting means

Current as of: June, 1999
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335 /   HD   ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
185  DF  .~ Contact-actuating means {7}
194.~.~ With pressure-maintaining or adjusting means {1}
195  DF  .~.~.~> Magnetic or electrodynamic force

DEFINITION

Classification: 335/194

(under subclass 185) Subject matter wherein the contact actuating structure includes additional means whereby a predetermined or constant pressure is applied to the contacts while in the circuit closing position or whereby such contact pressure may be adjusted.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15+, above, for automatic circuit interrupting devices with pressure control means.

192, above, for devices having spring biasing means for assisting in the opening or closing of the contacts.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers, 8, for switches in which contact pressure between fixed and movable contacts is exerted in a line radial to the arc of movement of a pivoted contact and subclass 170 for contact pressure adjustment means generally.

361, Electricity: Electrical Systems and Devices,

157+, for electric circuits for relays and electromagnets including contact pressure increasing means.