Padlock shackle

Details Padlock shackle Padlock shackle

1984-07-05

1985-12-31

Wolfe, Robert L.

Locks

Operating mechanism

Key

70 24, 428627, 428660, E05B 1516, B32B 1504

Patent

active

045612722

ABSTRACT:
A padlock shackle made of an inner core of ductile nickel-titanium alloy, outer casing of hardened stainless steel, and an intermediate layer of a composite of tungsten carbide particles in a nickel-titanium alloy matrix which is bonded to the nickel-titanium alloy core and mechanically bonded to the stainless outer casing.

REFERENCES:
patent: 3205841 (1965-09-01), Schwayder
patent: 3552938 (1971-01-01), Draca
patent: 3660082 (1972-05-01), Negishi et al.
patent: 3723077 (1973-03-01), Frehn
patent: 3777517 (1973-12-01), Schwayder et al.
patent: 3918138 (1975-11-01), Nemeth et al.
patent: 3976434 (1976-08-01), Schwayder
patent: 4161207 (1979-07-01), Fluckiger et al.
patent: 4374900 (1983-02-01), Hara et al.
patent: 4411960 (1983-10-01), Mizuhara

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