US PATENT SUBCLASS 335 / 190
.~.~.~ Including cam, roller or eccentric means

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

Internet Version by PATENTEC © 1999      Terms of Use


335 /   HD   ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
185  DF  .~ Contact-actuating means {7}
189  DF  .~.~ Mechanical linkage {2}
190.~.~.~ Including cam, roller or eccentric means

DEFINITION

Classification: 335/190

(under subclass 189) Subject matter wherein the mechanical linkage comprises at least one cam, roller or eccentric device whereby the force applied to open or close a movable contact may be varied during the opening or closing operation, or the armature may be held in a predetermined position upon actuation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

73, above, for motor driven switches employing eccentric or cam means.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism, appropriate subclasses, especially

9, 10.29+, 10.6, 53, 54, 55+, 567+, 570+, 835, and 838+ for mechanical elements including cams and/or eccentric devices.

200, Electricity: Circuit Makers and Breakers, 19.03+, 19.13+ and 19.20+, for periodic switches, subclass 38 for clock train retarded and subclasses 431 for snap action switches, all utilizing cams.