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| Number | Title | Issue Date |
| 7300235 | Key duplicating machine 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 ma... | 11/27/2007 |
| 7210986 | System and method for duplicating keys A key duplication system employs a modular key duplication attachment in combination with a high-speed, rotary powered tool and a profiled abrasive cutter. The attachment comprises a base, a carriage assembly movable relative to the base, a profiled stylus secured t... | 05/01/2007 |
| 7153072 | Clamping device for key duplicating machine with dual pivoted joint A clamping device for key duplicating machine with dual pivoted joint comprising a pair of left and right symmetrical cross grooves formed on the front side of a substrate, and aligned one with the other, for securing a pair of left and right vises, in order to enab... | 12/26/2006 |
| 7114894 | Key cutting machine and method A key cutting machine for cutting a notch pattern on a key blank is disclosed. The key cutting machine comprises a pair of cutting heads and a clamp mechanism. Each cutting head includes a cutting wheel having an edge and an alignment structure mounted behind the cu... | 10/03/2006 |
| 6543972 | Device to help determine key cut attributes The invention relates to a key decode apparatus for helping to automatically extracting and measurement depths and spacings of cuts an object key and decodes when duplicating an original key. A key holder is provided forming shadow image of a key side vie... | 04/08/2003 |
| 6413024 | Key code cutting device A key code cutting device includes a base, a milling tool, a carriage mounted on the base and movable along a first transverse direction, a work table mounted on the carriage and movable along a second transverse direction, a key holding member mounted on... | 07/02/2002 |
| 6179531 | Portable machine for processing keys A portable machine for processing keys, which uses computer-controlled sensors and servo motors to control the position of a bevel scale and the position of a cutting depth scale, so as to accurately control the feeding of a reamer in processing a blank i... | 01/30/2001 |
| 6152662 | Key duplication apparatus and method In a method and apparatus for duplicating an original key, the keyway and keycode of the original key are measured and duplicated in a preform. The preform used in the duplication process need not include any keyway or keycode prior to the duplication pro... | 11/28/2000 |
| 6065911 | Method and apparatus for automatically making keys The invention relates to an improved key making machine that automatically extracts characteristics of an object key without human intervention. The position and alignment of the object key is automatically determined, key characteristics extracted and co... | 05/23/2000 |
| 6033164 | Portable key cuter assembly This invention relates to a portable key cutter assembly. It consists of a cutter housing assembly including a drive shaft for receiving a portable power source. A carriage assembly is provided that is separate from and freely movable relative to the cutt... | 03/07/2000 |
| 5908273 | Key duplication apparatus and method In a method and apparatus for duplicating an original key, the keyway and keycode of the original key are measured and duplicated in a preform. The preform used in the duplication process need not include any keyway or keycode prior to the duplication pro... | 06/01/1999 |
| 5807042 | Method and apparatus for automatically making keys The invention relates to a key making machine that automatically extracts characteristics of an object key without human intervention. An object key is automatically aligned, key characteristics extracted and compared with known key manufacturers' informa... | 09/15/1998 |
| 5711643 | Portable semi-automatic computer code key cutting machine This invention relates to a programmable semiautomatic portable key cutting machine. More particularly, this invention pertains to a portable key cutting machine which semi-automatically cuts key blanks in accordance with key blank manufacturers' key prof... | 01/27/1998 |
| 5676504 | Key cutting machine with key tracing and electronic code cutting duplication modes A key cutting machine includes a cutter wheel, a key follower and a key positioning fixture for retaining a master key and a key blank in defined positions. Longitudinal and lateral displacement elements displace the cutter wheel and the key blank relativ... | 10/14/1997 |
| 5556240 | Key positioning fixture for a key cutting machine A key positioning fixture facilitates the accurate duplication of double-sided key on a key cutting machine and includes a first key alignment element having an upper clamping element with a first clamping surface and a lower clamping element with a secon... | 09/17/1996 |
| 5538374 | Key duplicating machine and method A key duplicating machine which automatically liens the original and blank keys, clamping the keys in alignment with the appropriate clamping pressure, cuts double-sided keys in a single pass, prevents operation of the machine without the presence of the ... | 07/23/1996 |
| 5360299 | Machine for multiple key coding A machine (1) for multiple key cutting comprises a box-like structure (2) which contains a motor for the actuation of a cutter (3) and/or a brush (4). The box-like structure (2) also comprises a clamp (5) for fixing a coded key and a tracer; a support is ... | 11/01/1994 |
| 5259708 | Key cutting machine having manual and automatic modes of operation A key cutting machine having manual and automatic modes of operation includes a shaft, a pivotal carriage on the shaft with clamps for a master key and a blank key, the master key facing a tracer bar and the blank key facing a cutter. A spring acts betwee... | 11/09/1993 |
| 5128531 | Optical profile reader, particularly for key duplicating machine A optical profile reader, particularly for key duplicating machines, incorporationg a photoemitter (16) positioned on one side of the profile (11) to be read, and a photodetector (21) facing the photoemitter (16), but on the opposite side of the profile t... | 07/07/1992 |
| 4929129 | Key cutting apparatus A key cutting apparatus for reproducing a pattern key onto a key blank while reproducing the pattern key without the copying errors and wear conventionally found on pattern keys. The cutting apparatus comprises a frame, a space adjusting portion movably a... | 05/29/1990 |
| 4741652 | Apparatus and method for automatically making a duplicate key A key duplicating apparatus having automatic key clamping mechanisms for a master key and a key blank, a circular key follower and a key cutter mounted on a pivoting base that pivots and slides on a support shaft, and a mounting plate for mounting the cla... | 05/03/1988 |
| 4666351 | Apparatus and method for automatically making a duplicate key A key duplicating apparatus having automatic key clamping mechanisms for a master key and a key blank, a circular key follower and a key cutter mounted on a pivoting base that pivots and slides on a support shaft, and a mounting plate for mounting the cla... | 05/19/1987 |
| 4592683 | Automatic key cutting machine An automatic key cutting machine having a key carriage can be pivotably moved by means of a torsion spring, and can be moved leftward and rightward along a guide rod by means of a reversible motor as well as a pair of microswitches in order to effect the ... | 06/03/1986 |
| 4545709 | Machine for the encipherment of keys The machine comprises a milling cutter of the so-called cup type whereto a manually movable bracket is articulated. The bracket has journalled thereon a stand having the reference key clamps mounted thereon and the clamps for the key blank to be milled. T... | 10/08/1985 |
| 4526498 | Key forming machine A key forming machine including a machine frame, key cutting means mounted on the machine frame and operable to cut bittings of preselected location and depth into a key blank to form a key, and a carriage assembly adapted to carry a key blank and mounted... | 07/02/1985 |
| 4143582 | Method and apparatus for making a secondary key for a lock mechanism A small and simply operated recording apparatus employing an elastic pressure element is utilized to make a three dimensional recording in thin metallic foil from each of the two sides of a primary key from which a secondary key is to be manufactured, the... | 03/13/1979 |
| 4023464 | Automatic multi-blank key cutting device The present invention is directed to an improved key cutter, and more particularly to a key cutting devie adapted simultaneously to cut two key blanks in accordance with the bitting of a pattern key. The apparatus is characterized by the inclusion of a vi... | 05/17/1977 |
| 3978764 | Automatic key duplicating apparatus Disclosed is a key making machine with a sample vise for receiving and retaining a sample key to be duplicated and a blank vise for receiving and retaining a key blank. When the sample key is positioned properly a path of electrical conduction is provided... | 09/07/1976 |
| 3956968 | Machine for automatically duplicating flat keys The invention relates to a machine for automatically duplicating flat keys, using a model key which is presented to a feeler and a rotating cutter that engages a key blank in accordance with the teeth profile of the model key. The machine comprises a hous... | 05/18/1976 |
| 3945298 | Key cutting machine An apparatus for producing copies of keys comprises a pair of vertically spaced clamps, one of which clamps the key to be duplicated and the other of which clamps the key blank to be cut. A movable carriage carries, in vertically spaced relationship, a st... | 03/23/1976 |
