Sphere-actuated float switch

Details Sphere-actuated float switch Sphere-actuated float switch

1991-04-01

1992-08-25

Tolin, Gerald P.

Electricity: circuit makers and breakers

Float

Float and pressure

73313, 200553, H01H 3518

Patent

active

051421089

ABSTRACT:
A sphere-actuated float switch including (i) a cage defining a longitudinal raceway, (ii) a yoke pivotally mounted externally to the cage and having first and second legs which extend into the raceway, (iii) an electrical switching means which is electrically open when the yoke is in a first position and electrically closed when the yoke is in a second position, (iii) an over-center spring capable of biasing the yoke into the appropriate electrically open and the electrically closed positions once the yoke is urged past a transition point, and (iv) a sphere within the raceway for urging the yoke between the electrically open and the electrically closed positions.

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Solo-float catalog pages from Anchor Scientific Inc., 2 pages, dated Jan. 1987, (Exhibit A).
Enpo Pump Company catalog pages entitled "Liquid Level Controls For Submersible Non-Clog Pumps", 2 pages, dated May 1982 (Exhibit B).
Myers catalog page entitled "MFLC Series Mercury Free Mechanical Float Switches", 1-page, dated Mar. 1990, (Exhibit C).

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