Key with transverse slots and method of making same

Details Key with transverse slots and method of making same Key with transverse slots and method of making same

1976-10-13

1978-07-18

Wolfe, Robert L.

Locks

Operating mechanism

Key

70358, E05B 2704

Patent

active

041007786

ABSTRACT:
A key for use with a cylinder lock of the type having tumbler pins protruding into the key slot perpendicularly and at inclined angles wherein elongated recesses to receive the pins are formed in the key with the long dimensions of the recesses extending transversely across the key. The recesses are successively formed with a single conical-tipped cutter shaped like the tumbler pins. The cutter is moved in a U-shaped path into, across and away from the key, leaving sloping sides which form good slide paths for the pins. The recesses can have different depths and can merge stepwise into each other.

REFERENCES:
patent: 3349587 (1967-10-01), Keller
patent: 3412588 (1968-11-01), Schwegler
patent: 3889501 (1975-06-01), Fort

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