Electricity: circuit makers and breakers – Float – Float and pressure
Patent
1991-07-03
1992-10-13
Tolin, Gerald P.
Electricity: circuit makers and breakers
Float
Float and pressure
73313, 200 814, 335205, 417 40, H01H 3518
Patent
active
051553112
ABSTRACT:
A magnetically actuated float switch assembly for use with a submersible pump, comprises a float rod with two spaced stops, a movable float carried by the rod which moves between the stops in response to fluid level, the rod being mounted in a vertical oriented position for movement upwardly and downwardly in response to float movement against the two spaced stops, a magnetic body carried at the upper end of the rod for movement therewith, a generally U-shaped magnetic follower element with two spaced, magnetically responsive arms on one side of the magnetic body, or two sets of arms disposed on either side of the magnetic body to provide a dual U-shaped arrangement, the follower element being rotatably mounted with the arms thereof in a generally horizontal position, one above the other for movement of the arms thereof upwardly and downwardly in a vertical plane, the arms and magnetic body being positioned relative to each other so as to dispose the magnetic body for movement from arm to arm to thereby allow proximity actuation of the follower by magnetic attraction between an arm and the magnetic body, electrical contact means carried by the follower element, and fixed electrical contact means adapted to make and break with the follower electrical contact means as the follower arms move downwardly and upwardly, respectively, in response to proximity actuation by the magnetic body as controlled by float movement against the stops on the rod.
REFERENCES:
patent: 1179377 (1916-02-01), Weed
patent: 1838135 (1931-12-01), Derby
patent: 2726296 (1955-12-01), Hanson
patent: 4027278 (1977-05-01), Gianinni
patent: 4066858 (1978-01-01), Piper
patent: 4647740 (1987-03-01), Hanson, III
patent: 4742195 (1988-05-01), Bryant
patent: 4865073 (1989-09-01), Kocher
S.J. Electro Systems, Inc.
Tolin Gerald P.
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