Sealed enclosure for electrical circuitry in moist environment
AssigneeHamilton Standard Controls, Inc.
InventorsStephen E. Youtz, Edward C. Rose
Life of this patent
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Abstract
A sealed enclosure is provided for electrical circuitry to be located in a moist environment, as near a spa. The enclosure includes a housing of electrical insulating material, a display overlay adhesively bonded to the housing and covering certain openings in the housing for switches and displays, and a retaining bezel over the graphic overlay. Relief porting is provided in the bezel, and preferably also through a flange in a contiguous portion of the housing for assuring that water deposited on the display overlay will be drained away and thus not degrade the seal between the overlay and the housing.
Claims7
A sealed enclosure for electrical circuitry for use in a moist environment comprising:
- housing means of waterproof material structured to include a compartment therewithin for containing electrical circuitry, the housing means comprising a substantially sealed enclosure having an external display surface, the compartment being open to the display surface over a limited portion of said display surface;
- a display overlay of waterproof electrical insulating material, the display overlay being contoured for and being in, close sealed engagement with the housing means display surface and being sized to continuously cover said portion of said display surface open to the compartment;
- an annular retaining bezel adapted for close mechanical engagement with the housing means, the display overlay being interposed between the bezel and the housing means display surface in retained sealed engagement with the housing means display surface;
- and
- wherein relief porting is included in at least said bezel for allowing moisture to naturally drain from the display overlay thereby to inhibit degradation of the sealed engagement of the display overlay with the housing means display surface.
Dependencies are inferred from the claim text.