Title: Watertight seal for toggle switches

Abstract: A toggle switch of the type used on the casing of a camera or intercom device solves the problem of moisture entering the casing through the switch to thereby damage the electronic circuitry, cause rust, mildew and other damage. The exterior of the switch housing is watertight by reason of a turn nut compressing an O ring. The interior of the toggle switch handle housing is made watertight, while still permitting toggle motion, by an elongated seal of solid cross section engaging the outer face of the bulbous portion of the handle and a second elongated seal of solid cross section engaging the inner face of the bulbous portion.

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Inventors: Kirchoff, Francis D. (Waban, MA, US)

Application Number: 971801
Filing Date: 1978-12-21
Publication_date: 1980-03-04
Assignee: Alco Electronic Products, Inc. (North Andover, MA)
Primary Class(es): 277/507 200/302.3, 200/335
Other Classes:
US Patent Ref:

2650964	Sep, 1953	Razdow	200/302.
3636286	Jan, 1972	Hults	200/67.
3721453	Mar, 1973	Likavec	277/30.
3988558	Oct, 1976	Josemans et al.	200/335.

Other Refs: 7487481140064

May, 1956	GB
Jan, 1969	GB

Primary Examiner: Ward, Jr., Robert S.
Assistant Examiner:
Attorney: Pearson & Pearson