Multiple pressure switch

Details Multiple pressure switch Multiple pressure switch

1980-12-10

1982-08-24

Little, Willis

Electricity: circuit makers and breakers

Electric switch details

Actuators

200153T, 200 67C, 200159B, 200 67DA, H01H 1300

Patent

active

043462766

ABSTRACT:
A multiple pressure switch comprising a first and a second snap switch, which under spring pre-stress each assume a starting position and have a first and second point of application respectively for an actuating member, which is supported on a total of three application points lying on the corners of a conceived triangle, and with gradual increase of an external force acting on the actuating member within the triangle causes first the first and then the second snap switch to snap over into a final position. Relative to a base plane normal to the direction of application of the external force the first point of application in its starting position lies higher and in its end position lies deeper then the second point of application in its original position, and the second point of application in its starting position lies higher and in its end position lies lower than the third point of application.

REFERENCES:
patent: 2401213 (1946-05-01), Wood
patent: 2542533 (1951-02-01), Johansson
patent: 2954447 (1960-09-01), Bolesky et al.
patent: 3057982 (1962-10-01), Grover et al.
patent: 3105130 (1963-09-01), Weiford
patent: 3210486 (1965-10-01), Holzer

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