Key duplicating machine

Details Key duplicating machine Key duplicating machine

2007-11-27

2007-11-27

Ross, Dana (Department: 3722)

Gear cutting, milling, or planing

Broaching

With means to hold work during cutting

C409S081000, C409S280000, C076S110000

Reexamination Certificate

active

11295687

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.

REFERENCES:
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patent: 5964554 (1999-10-01), Drori
patent: 5997224 (1999-12-01), Beauregard et al.
patent: 6033164 (2000-03-01), Hoffman et al.

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