Fred J Lang

US Patent:

7300235, Nov 27, 2007

Filed:

Dec 5, 2005

Appl. No.:

11/295687

Inventors:

Grigory Gimelfarb - Forest Hills NY, US
Fred Lang - Brooklyn NY, US
George Buchinger - Brooklyn NY, US

Assignee:

Jet Hardware Manufacturing Corporation - Brooklyn NY

International Classification:

B23D 4/02
B23C 3/35

US Classification:

409277, 409 81, 409280, 76110

Abstract:

A portable, mechanically operated, key-duplicating machine that relies on a punch-cutting system that selectively punches out the particular notches or “bittings” of a key blank in response to the details of an adjacent and aligned master key. The duplicating machine comprises a frame having cutting end and an alignment end. The frame defines a longitudinal axis. A carriage is movable along the longitudinal axis and includes a transverse axis. A key clamping assembly has a first key clamp for holding the key blank and a second key clamp for holding the master key. The key assembly is selectively slidable along the transverse axis. A cutting assembly is located at the cutting end and includes a punch-type cutter pin that is adapted to selectively cut pre-shaped notches from the held key blank. The cutter pin includes a guide section that aligns with the notch-profile of the held master key. The key clamping assembly is rotatable about the transverse axis and with respect to the carriage so that the mounted keys face either the cutting end or the alignment end of the frame.