US PATENT SUBCLASS 335 / 52
.~.~.~.~ 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


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

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
47  DF  .~ Utilizing conductive liquid (e.g., mercury) {4}
49  DF  .~.~ With liquid-displacement means {3}
51  DF  .~.~.~ Magnetic {1}
52.~.~.~.~ Piston or plunger {1}
53  DF  .~.~.~.~.~> Combined with timing or delay means

DEFINITION

Classification: 335/52

(under subclass 51) Subject matter wherein the magnetically actuated liquid displacement means comprises a plunger or piston acting upon the liquid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

56, for conductive liquid activities utilizing an armature structure comprising a freely floating slug or mass.