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Metal Working

Appliance-switch

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Appliance switch

Details

Inventors: Orrico, Mario M.;
Assignee: Illinois Tool Works, Inc. (Glenview, IL)
Primary Examiner: Recla; Henry J.
Assistant Examiner: Barrett; Glenn T.
Attorney, Agent or Firm: O'Brien; John P., Chin; Davis

An appliance switch includes a base housing having a pair of trough-like recesses and a cover member having a pair of cylindrically-shaped members. The cylindrically-shaped members are arranged so as to be received snugly within the respective pair of trough-like recesses in order to provide a stabilized engagement. A sealing member consisting of an inverted U-shaped flange is formed on the outer surface of the cover member for creating a tighter sealing contact between the cylindrically-shaped members and the trough-like recesses during the period of switch actuation.

DETAILED DESCRIPTION Accordingly, it is a general object of the present invention to provide an improved appliance switch having an integral rolling-type seal which is relatively simple and economical to manufacture and assemble.
It is an object of the present invention to provide an improved appliance switch which includes a unique seal configuration for mating a base housing and a cover member so as to produce a water-tight pushbutton switch.
It is another object of the present invention to provide an improved switching device which can be readily used in conjunction with electrical appliances but can be operated in the presence of splashing water without creating an electrical hazard.
It is still another object of the present invention to provide an improved appliance switch formed of a base housing having a pair of trough-like recesses and a cover member having a pair of cylindrically-shaped members formed on its interior, the cylindrically-shaped members being arranged so as to be received snugly within the respective pair of trough-like recesses so as to provide a stabilized engagement.
It is yet still another object of the present invention to provide an improved appliance switch which is formed of a base housing, a cover member, and a sealing member consisting of an inverted U-shaped flange disposed on the outer surface of the cover member for creating a tighter sealing contact between the cover member and the base housing during switch activation.
In accordance with these aims and objectives, the present invention is concerned with the provision of an improved appliance switch which includes a base housing formed of an insulating material and having a top portion and a bottom portion, and a cover member formed of an elastomeric material and having pushbutton actuator member.
The bottom portion of the housing has a cavity for containing a fixed switch contact plate and a movable switch contact strip.
The contact plate is formed with a fixed contact, and the contact strip includes an intermediate L-shaped movable portion and a movable contact

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