Electricity: circuit makers and breakers – Float – Float and pressure
Patent
1985-09-26
1987-02-17
Tolin, G. P.
Electricity: circuit makers and breakers
Float
Float and pressure
200 6152, 73308, 417 40, H01H 3518
Patent
active
046441174
ABSTRACT:
A hollow float bulb or shell is secured to a flexible electrical cord and encloses a housing which confines an electrical switch and defines a chamber with an inwardly projecting barrier. A weight member in the form of a metal ball is disposed within the chamber and rolls over the barrier to actuate the switch in response to tilting movement of the shell and housing. In one embodiment, a shuttle in the form of a metal frame is supported within the chamber for sliding movement and carries a switch conductor element. The shuttle frame is impacted by the ball located within the frame when the ball rolls over the barrier, and the frame is restrained by magnets to produce snap actuation of the switch.
REFERENCES:
patent: 3026387 (1962-03-01), Ashbaugh
patent: 3483341 (1969-12-01), Reichensperger
patent: 3944770 (1976-03-01), Pepper
patent: 4021144 (1977-05-01), Matsusaka
patent: 4084073 (1978-04-01), Keener
patent: 4215975 (1980-08-01), Niedermeyer
patent: 4302641 (1981-11-01), Johnston
patent: 4373155 (1983-02-01), Dola
patent: 4378475 (1983-03-01), McNiel
Good John W.
Grimes Richard V.
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