Wheel nut with welded cap

Details Wheel nut with welded cap Wheel nut with welded cap

1976-04-01

1978-11-07

Britts, Ramon S.

Electric heating

Microwave heating

Tunnel furnace

10 86C, 219 861, 219107, F16B 3714

Patent

active

041239610

ABSTRACT:
A wheel nut having wrench flats extending parallel to a central threaded aperture is sheathed by a sheet metal cap which extends down the sides and covers one end of the nut. The end of the cap may extend straight across the end of the nut or may alternatively be domed to surround a volume extending beyond the end. The cap is welded to the nut at either a ring of points or a continuous ring extending around the nut end. Alternatively, the nut may have a radially extending skirt between its ends and the cap may be welded to the laterally extending sides of the skirt. These resistance welded joinders are formed by supporting the cap in loose assembly with the nut in an electrically conductive fixture, bringing a tubular electrode into pressured contact with the uncapped end of the nut and passing an extremely short pulse of high electric current through the contacting surface of the cap and nut end using a capacitive discharge welding circuit.

REFERENCES:
patent: 407564 (1889-07-01), Baker
patent: 443799 (1890-12-01), Searls
patent: 1747490 (1930-02-01), Schneider et al.
patent: 1936188 (1933-11-01), Dover
patent: 2042953 (1936-06-01), McArdle et al.
patent: 2050867 (1936-08-01), Teare
patent: 2054245 (1936-09-01), Cummins
patent: 3364806 (1968-01-01), Chanre
patent: 3585900 (1971-06-01), Chaivre
patent: 3955231 (1976-05-01), Erdmann

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