Electric switch

Details Electric switch Electric switch

1992-06-02

1994-03-22

Recla, Henry J.

Electricity: circuit makers and breakers

Electric switch details

Cases and bases

200293, H01H 902

Patent

active

052966631

ABSTRACT:
The present invention is an electric switch for switching individual phases of multi-phase AC electric power. The switch has at least one pair of fixed terminals with each terminal of the pair having an ear extending upward in a vertical plane. The switch also has a conducting device with contacts that extend downward in the vertical plane corresponding to the fixed terminals. Moving contacts are mounted to an axially translatable contact carrier and engage contemporaneously in the vertical plane with the contacts from the conducting device and the fixed terminals when the contact carrier slides into an "on" position. Electrical power is then able to flow from the line-side fixed terminal, through the conducting device, to the load-side terminal. The contact carrier is translated axially by the drive mechanism. The drive mechanism employs over-center shifting and lost-motion switching technology to prevent the switch from being in a partially "on" position. An auxiliary switch can be mounted to the switch and switched "on" and "off" contemporaneously with the electric switch.

REFERENCES:
patent: 4211905 (1980-07-01), Quigley
patent: 4340795 (1982-07-01), Arthur
patent: 4687164 (1987-08-01), Bakhaus et al.
patent: 4748431 (1988-05-01), Saunders et al.
patent: 4851621 (1989-07-01), Borchardt et al.
patent: 4916268 (1990-04-01), Micoud
Applicants' Exhibits 1-4, photographs of a commercial switch of Harvey Hubbell, Ltd., admitted prior art.

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