Switch case with stackable lock washer

Details Switch case with stackable lock washer Switch case with stackable lock washer

1979-03-14

1980-03-04

Pollard, Steven M.

Electricity: circuit makers and breakers

Electric switch details

Cases and bases

85 50R, H01H 902, F16B 4300

Patent

active

041918720

ABSTRACT:
A plastic washer is disclosed having a radially inwardly projecting tab for mating with the slot in a conventional threaded switch barrel, and the washer may be stacked with other similar washers in spite of the fact that each washer defines a projecting post adapted to mate with a locating hole provided for this purpose in the panel where the switch is to be mounted. Each washer also includes an open cavity or hole for receiving the post of an adjacent washer so that the washers can be stacked, and can also be used to locate the switch housing angularly with respect to the generally circular opening normally provided in the panel for such a switch. The same washer is also useful as a lock washer due to its resilient plastic composition.

REFERENCES:
patent: 2363319 (1944-11-01), Hanson
patent: 2639789 (1953-05-01), Rosenberg
patent: 3177456 (1965-04-01), Haydu et al.
patent: 3411377 (1968-11-01), Golbeck
patent: 4067184 (1978-01-01), Johnson, Jr.

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