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| Number | Title | Issue Date |
| 7243437 | Decoding device for double-sided keys An electronic device includes a housing and a catheter having a proximal end seated within the housing and a distal end positioned to an exterior thereof. The catheter distal end has an arcuate shape, assisting the user to scan an internal plug cavity, and a cylindr... | 07/17/2007 |
| 6415523 | Digital key decoder A precision electronic apparatus and method for decodes a lock key, wherein the coded key is inserted into the warded keyway. Simultaneously, this engages a toggle switch and rod. The rod engages a spring-loaded linear switch for each groove. The spring-l... | 07/09/2002 |
| 6343632 | Jig for fitting locks to doors A jig (11) for removable fitment along the edge of a door (19) which provides a suitable combination of guides and stops to allow the location and operation of suitable cutting tools such as drills or routers. The jig comprises a pair of parallel guide pl... | 02/05/2002 |
| 5351409 | Key identifier method and apparatus A key identifier enables an operator to select a key blank design functionally compatible with an unknown key by directing the operator to implement a primary classification step followed by a secondary classification step to sort an unknown key into a sp... | 10/04/1994 |
| 5146689 | Key reading method and apparatus A method and apparatus for reading a key to determine the depth of its notches. A frame is moveable towards and away from the key, this frame having a reading pin and a plurality of contact pins thereon, all of those pins being spring biased towards the k... | 09/15/1992 |
| 4875294 | Gauge for determining depth of cut in keys and the like A device for quickly and accurately determining the depth of cuts in a key, and for other depth determinations associated therewith. This device has a fixed anvil member having a flat top surface, as a reference surface, with a transverse slot to accept a... | 10/24/1989 |
| 4570355 | Apparatus and process related to keying a lock with a control key For use in combination with a pin-tumbler lock cylinder of the type having a key plug nested within a control cylinder which in turn is nested within a main body cylinder and including a plurality of bores extending through the key plug, the control cylin... | 02/18/1986 |
| 4445277 | Universal programmable lock installation device A device as disclosed to facilitate the placement of locks into doors including key-in-knob lock sets, mortise deadlocks as well as independent knobs and deadbolts. The device includes a body which is detachably securable with respect to a door edge in wh... | 05/01/1984 |
| 4433487 | Key reading system A key reading apparatus having a slot for receiving a key and at least one reading pin sensing depressions or raised projections on a key. The pin has a magnetic portion movable to two different positions, each of which positions place a Hall transistor a... | 02/28/1984 |
| 4283859 | Method and apparatus for reading a key A method and apparatus for reading a key, preferably a key of the type having indentations formed in the flat sides of the key blade. Typical uses for such method and apparatus include incorporating the same in a machine for making a lock to be opened by ... | 08/18/1981 |
| 4271597 | Method and apparatus for masterkeying Method and apparatus for making a plurality of different keys, each constructed to open each rotary cylinder lock in the same series, or sub-series, called "masterkeying". The disclosed masterkeying tool comprises a calibrated plate, having one or more pi... | 06/09/1981 |
| 4233746 | Device for testing the section of a flat key A device for testing or checking the section of a flat key comprising a base plate, a plurality of laminations, each of which is formed of a pair of half-laminations which are slidably mounted with respect to one another in their common plane towards one ... | 11/18/1980 |
| 4012991 | Key decoding and duplicating apparatus and method Method and apparatus for decoding and duplicating a key wherein the notches in the shank of the key are coded to a predetermined coded depth and spacing therebetween. An index card having a sequential index thereon corresponding to the predetermined coded... | 03/22/1977 |
