Sealed push-button switch and method of assembly

Details Sealed push-button switch and method of assembly Sealed push-button switch and method of assembly

1988-07-28

1989-10-31

Cusick, Ernest G.

Electricity: circuit makers and breakers

Electric switch details

Cases and bases

200293, 200467, 29622, 425812, 2643281, H01H 3502

Patent

active

048779300

ABSTRACT:
A sealed push-button switch which includes a switching mechanism including a terminal, a case including a space for housing the switching mechanism, and a base which is fixed to the case. A frame for housing the terminal is fixed to the base, and a melted resin material is injected into the frame and set to fix the terminal. When the melted resin is injected into the frame, the air in the case is heated and made to expand by the resin. However, the expanded air leaks out through an air passage which is formed through the case of the base. Air bubbles are accordingly prevented from developing in the resin.

REFERENCES:
patent: 3382332 (1968-05-01), Cherry et al.
patent: 3822857 (1974-07-01), Tanie
patent: 3940585 (1976-02-01), Schaad
patent: 4482513 (1984-11-01), Avletti
patent: 4507528 (1985-03-01), Vogel et al.
patent: 4650625 (1987-03-01), Pentlow
patent: 4675778 (1987-06-01), Lewandowski et al.

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