Actuatable switch in sealed housing

Details Actuatable switch in sealed housing Actuatable switch in sealed housing

1998-08-12

2000-07-25

Friedhofer, Michael

Electricity: circuit makers and breakers

Electric switch details

Cases and bases

200298, H01H 904

Patent

active

060939001

ABSTRACT:
An electrical switch (26) is mounted in a rigid housing in the form of a control handle (10), where the housing has a soft flexible covering (32) with a portion (40) that can be depressed to operate the switch. The housing is in the form of a shell with first and second separately molded shell parts (14,16). The first shell part has a hole (24) in it that is aligned with the switch actuator, and the covering is overmolded onto the first shell, with the portion of the covering lying over the hole in the first shell being thickened at the middle (44) of the hole to indicate the area to be depressed and for more comfortable depression. A peripheral area of the first shell has an upstanding wall (62) with passages (66) therein, and the overmolded flexible covering has connection portions (72) that extend from the main covering portion (46) and through the passages to a peripheral covering portion (74), with the peripheral covering portion lying between the first and second shell parts to seal the gap (70) between them.

REFERENCES:
patent: Re32747 (1988-09-01), Ullmann et al.
patent: 3749870 (1973-07-01), Oakes
patent: 3894207 (1975-07-01), Jelley
patent: 4520247 (1985-05-01), Pancook et al.
patent: 4849587 (1989-07-01), Bacon
patent: 4918270 (1990-04-01), Orrico
patent: 5382767 (1995-01-01), Takano et al.
patent: 5489754 (1996-02-01), Dirmeyer et al.

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