Air gap switch assembly

Details Air gap switch assembly Air gap switch assembly

1985-10-29

1988-11-08

Pellinen, A. D.

Electricity: circuit makers and breakers

Electric switch details

Actuators

200308, 200335, 200153H, 200153L, 315129, 323905, H01H 916, H01H 304, H01H 312

Patent

active

047835818

ABSTRACT:
An air gap switch assembly with a status indicator that prominently indicates when the switch is in the OFF position and disappears from view when the switch is in the ON position. The status indicator is located on the control lever for the switch, which is formed of a clear material and is difficult to see. The control lever is moveable relative to the housing of the assembly so that when the control lever is in the ON position, the portion of the lever on which the status indicator is located is hidden from view by the housing of the assembly. When the control lever is moved to the OFF position, the portion of the lever on which the status indicator is located is exposed, thereby providing an indication that the switch is in the OFF position. The switch is formed of two contacts which are biased together in electrical contact by an elongated flat metal strip. The control lever is coupled to a cam. When the control lever is moved to the OFF position, the cam abuts against the metal strip, forcing the strip to move in a direction opposite to its bias, thereby separating the two contacts and breaking electrical contact.

REFERENCES:
patent: 163736 (1951-02-01), Bangert
patent: 3746923 (1973-07-01), Spira et al.
patent: 4262180 (1981-04-01), Walter
Tektronix DFl Display Formatter Brochure, Sep. 1976, Tektronix, Inc.
Marquardt, Marquardt Switches Inc., pp. 8-9.
Catalogue Des Interrupteurs, J & J Marquardt KG, 1978, 3 page brochure.

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