US PATENT SUBCLASS 335 / 123
.~.~.~.~.~ Pawl and ratchet

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

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
106  DF  .~ Multiple contact type {5}
107  DF  .~.~ Contacts-selectively, sequentially, alternately, or intermittently actuated {3}
121  DF  .~.~.~ Contact-actuation means {3}
122  DF  .~.~.~.~ With rotary or compound motion device (e.g., rack and pinion) {1}
123.~.~.~.~.~ Pawl and ratchet

DEFINITION

Classification: 335/123

(under subclass 122) Subject matter wherein the contact

actuating means comprises significant structural details of a pawl and ratchet device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

140, for switches of the step-by-step type utilizing pawl and ratchet mechanism.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

575, for pawl and ratchet devices of general utility.