Joining apparatus for sheet metal assembly of appliance housings

Details Joining apparatus for sheet metal assembly of appliance housings Joining apparatus for sheet metal assembly of appliance housings

1985-03-18

1987-08-25

Moy, Joseph Man-Fu

Receptacles

Outlet or junction box type

With closure

220394, 220315, 220322, H02G 308

Patent

active

046886923

ABSTRACT:
Apparatus for joining sheet metal elements of a housing for an electrical appliance has a centering lug, disposed on a first sheet metal element, with a wedgeshaped recess formed therein. Furthermore, disposed on a second sheet metal element is a centering hole to seat the centering lug, the latter penetrating the centering hole, but limited by a stop, until the top surface of the second sheet metal element with the centering hole and a bevel of the wedgeshaped recess form a wedgeshaped seating hole with a self-locking aperture angle for seating a spring wire elastically engaging the seating hole.

REFERENCES:
patent: 380219 (1888-03-01), Roberts
patent: 851597 (1907-04-01), Paugh
patent: 854046 (1907-05-01), Paugh
patent: 1220085 (1917-03-01), Freeman
patent: 2630477 (1953-03-01), Rypinski
patent: 2877919 (1959-03-01), Kobryner
patent: 3127047 (1964-03-01), Bolchalk
patent: 3394909 (1968-07-01), Pilla
patent: 4147276 (1979-04-01), Jordan, Jr.

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