...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7441430 | Device for opening a locked door or drawer A device for opening a locked door or drawer, which device comprises; a) means for facilitating the insertion of a key into a lock; and b) means for rotating said key when inserted. ... | 10/28/2008 |
| 7392675 | Slot mechanism and smart ignition system A slot mechanism having an accommodation space into which an insertion object is inserted through a slot. The slot mechanism includes a shutter located in the accommodation space. The shutter is movable along an insertion direction of the insertion object. When the ... | 07/01/2008 |
| 7363787 | Steering lock system with control knob for vehicle A steering lock system with a control knob for a vehicle, comprises: a cylinder rotatably carried in a stationary housing; a rotor relatively rotatably inserted into the cylinder and having a key hole into which a mechanical key can be inserted; and a control knob m... | 04/29/2008 |
| 7322218 | Tank cap of fuel tank A tank cap for closing a fuel supply port of a fuel tank is provided on its upper surface with a key hole and a cover for covering the key hole. The cover opens and closes the key hole by making the cover swing via a support shaft. Finger catch concave portions are ... | 01/29/2008 |
| 7251970 | Cylinder housing arrangement A cylinder housing arrangement, where the cylinder housing encloses a lock cylinder or the like, which comprises a number of locking elements to be arranged by a key, preferably tumbler discs to be turned by a key, which discs in their locked position prevent the tu... | 08/07/2007 |
| 7174754 | Key for engaging a locking mechanism of a port cover for protecting from unauthorized access one or more ports of a system integrated into a structure for injection of a material into one or more cavities in the structure In certain embodiments, the present invention includes a key for engaging a locking mechanism for a port cover for use in a system integrated into a structure for injection of a material into one or more cavities in the structure. The locking mechanism is for remova... | 02/13/2007 |
| 7174753 | Method for protecting from unauthorized access one or more ports of a system integrated into a structure for injection of a material into one or more cavities in the structure In certain embodiments, the present invention includes a method for protecting from unauthorized access one or more ports of a system integrated into a structure for injection of a material into one or more cavities in the structure. The method includes coupling a b... | 02/13/2007 |
| 7146834 | Device for opening a locked door or drawer A device for opening a locked door or drawer, which device comprises; a) means for facilitating the insertion of a key into a lock; and b) means for rotating said key when inserted. ... | 12/12/2006 |
| 7140214 | Electro-mechanical cylinder lock-key combination with optical code An electromechanical cylinder lock-key combination includes a cylinder housing and a cylinder core rotatably arranged in the cylinder housing and having a key-way for receiving a key. A plurality of key actuated moveable blocking elements block the rotation of the c... | 11/28/2006 |
| 6935147 | Key with indicator and retractable shield The key with a lock-unlock indicator is operable with a complementary lock set. The key has a body and an elongated key stem extending therefrom. A toggle bar is pivotally mounted or disposed on the key stem. The toggle bar operates in conjunction with a lock cam an... | 08/30/2005 |
| 6912881 | Security reversible key and locking system The security reversible key with an assigned cylinder (Z) has a blocking groove (BN) with a coded blocking depth (B1, B2, B3), which runs parallel to the axis of the key (x) from the tip of the key to at least the first position (P1) of a... | 07/05/2005 |
| 6843084 | Storage compartment security system A security system for a storage container including a latch assembly disposed on an interior side of a door for latching the door in a closed position with the storage container. A plurality of reciprocating latch elements are included in the latch assembly for latc... | 01/18/2005 |
| 6843517 | Manually lockable motor-vehicle power latch A motor-vehicle door latch has a lever displaceable between a locked position in which the latch is locked and an unlocked position in which the latch is unlocked and a plate carrying the latch and adapted to be exposed at a door edge. The plate is formed with a thr... | 01/18/2005 |
| 6550298 | Lockset keyway cover-up mechanism A lockset keyway cover-up mechanism is composed of a rotor, a retainer, a bushing, magnetic pins and springs adapted with a key, which is provided with an unlocking part containing multiples of magnets, characterized by that the keyway and multiples of pi... | 04/22/2003 |
| 6539762 | Device for receiving and holding an identification provider, such as an electronic key, especially for an ignition-starter switch The inventive device comprises a seat which is situated in the device housing and which is provided for the insertion of an identification provider. A holding element located inside the seat engages with a lateral indentation of the identification provide... | 04/01/2003 |
| 6370929 | Apparatus for insertion of a key therein An apparatus for insertion of a key therein substantially prevents foreign matter from entering into a key insertion hole, and even if foreign matter does enter into the key insertion hole, discharges the foreign matter therefrom. A shutter is provided wi... | 04/16/2002 |
| 6209369 | Key actuated exterior cam lock The present invention provides a key actuated cam lock. The cam lock has a corrosion resistant metal cap. A weather resistant plug cap is rotatably mounted in the corrosion resistant metal cap. The weather resistant plug cap has an opening permitting the ... | 04/03/2001 |
| 6035680 | Combination key lock for a vehicle A combination key lock for a vehicle lock cylinder having a keyhole including two flanges, each having a throughbore, integrally disposed on either side of the keyhole. The throughbores receive the shackle of a conventional padlock. The invention also pro... | 03/14/2000 |
| 5986563 | Digitally programmable protecting means and a key for mechanical rotary locking devices A digitally programmable protecting mechanism and a programmable key for a mechanical rotary lock for providing enhanced protection and enabling user to change mechanical and electronic security code configuration at any time without involving of special ... | 11/16/1999 |
| 5946957 | Keyhole shutter structure A keyhole-shutter structure includes a cylindrical protector block. An upper portion of the protector block includes an approximately square housing portion. A shutter plate is fitted in the housing portion. A cap is placed on the protector block. The bot... | 09/07/1999 |
| 5916282 | Switch cabinet door lock The invention relates to a catch for a door, especially a switchboard door, with a lock plate which can be secured to the door and bears a door lock and a bolt cover guided adjustably on the lock plate which can be secured in a position covering the door ... | 06/29/1999 |
| 5823025 | Lock system with a lock-out safety device for wheeled vehicles A lock for a motorcycle has a generally U-shaped construction. The open end of the U is slipped over the brake rotor of the front wheel or the sprocket of the rear wheel of the motorcycle. A bolt then extends across the open end of the U-12 shape to hold ... | 10/20/1998 |
| 5819569 | Lock with changeable warding positions A lock with changeable warding positions wherein a rotationally indexable warding member selectively enables one of a multiple of keys for operation of the lock.... | 10/13/1998 |
| 5737948 | Access control system An access control system for preventing access to underlying fasteners, and otherwise preventing tampering with the underlying control panel. A base plate is affixed to a base that is fastened to the underlying structure with standard fasteners. A cover p... | 04/14/1998 |
| 5706681 | Antitheft locking device for a vehicle An antitheft locking device has a steering wheel engaging member (30) with an end wall (32) covering the steering wheel (12) over its part that includes at least two ribs (16, 18), a peripheral wall (33) extending over at least a part of the outer periphe... | 01/13/1998 |
| 5680095 | Security apparatus A security apparatus for buildings, vehicles and the like includes a switch mounted adjacent to a closure access member. A housing mounted adjacent to the closure access member receives a member movable between first and second positions. When the movable... | 10/21/1997 |
| 5467624 | Dust shutter assembly for locks An improved dust shutter assembly for locks includes a floating hinge point which decreases the amount of axial key force that is necessary to overcome the spring bias in the dust shutter mechanism. When engaged by a key, the spring retention pin (hinge p... | 11/21/1995 |
| 5410898 | Lock device capable of activating an electrical anti-theft system A lock device includes a lock body with a lock shell, a key plug received in the lock shell, and an anti-dusting cover assembly secured on a front end of the lock shell. The key plug has a front end which is formed with a recess that has an end wall which... | 05/02/1995 |
| 5388435 | Lock To prevent the unauthorized unlocking of van doors equipped with safety rod locks, the lever of the safety rod lock is held to the door by a retainer clip. The retainer clip has an extending tongue with apertures in it that passes through the door into th... | 02/14/1995 |
| 5309743 | Door unlocking device An object of this invention is to provide a door unlocking device adapted unlock a door by transmitting a signal in the air through a signal transmitter, which can unlock the door even when the power source of the signal transmitter, namely, the battery h... | 05/10/1994 |
| 5307658 | Key cylinder device An object of this invention is to provide a key cylinder device which is simple in structure and is able to positively detect the presence or absence of the key. In a key cylinder device, a key cylinder body incorporates a rotor having a key inserting inl... | 05/03/1994 |
| 5195342 | Cylinder guard An access cover plate is secured to a door by tamper-proof fasteners. A hole in the cover plate is concentric with a cylinder lock keyhole and provides access for the key and actuation of the primary lock. The cover plate access hole is closed off by a re... | 03/23/1993 |
| 4884424 | Mortise cylinder lock guard A mortise cylinder lock guard for providing protection to a mortise cylinder lock when installed in a door includes a collar for situating between a front face of the lock and the door and substantially surrounding the lock at an outer periphery thereof. ... | 12/05/1989 |
| 4881391 | Movable cover device for an automobile lock A movable cover device for an automobile lock, comprising a plate supporting the lock operating actuator and fixed to a wall of an automobile compartment, and a cover pivoted on the plate, the device having in the cover an area substantially equal to that... | 11/21/1989 |
| 4843853 | Tamperproof lock for vending machines Apparatus for securely locking the cabinet of a vending machine to prevent unauthorized access to the coin box and/or product being vended. The cabinet comprises a box-like housing having an access door hinged along one edge to a side wall of the cabinet.... | 07/04/1989 |
| 4838059 | Combined cover and attaching means for concealing a deadbolt lock A hinged cover encloses a projecting portion of a deadbolt lock, the projecting portion having a keyhole therein. The cover includes two shells, each having an inwardly directed flange thereon. By means of a retainer unit provided with a groove, the flang... | 06/13/1989 |
| 4773242 | Lock cylinder cover with time delay closure A deck lid latch has a rotatable clock cylinder accessible through an escutcheon having a pivotally mounted cover. A detent is effective upon movement of the cover to the open position to hold the cover in the open position. The detent is released in resp... | 09/27/1988 |
| 4732024 | Lock with security cylinder and extended key A security lock for a door or other closure in which it is desired to control access therethrough. More specifically, the invention relates to the addition of a tube rigidly affixed to a lock cylinder in enclosing relation to the key barrel and the key re... | 03/22/1988 |
| 4723428 | Cylinder lock with cover A cylinder lock with a cover that is held open with first and second engaging members during the time that a key is inserted in the lock. The lock further includes a mechanism for disabling the operation of a remote lock release device upon rotation in a ... | 02/09/1988 |
| 4696173 | Vehicle steering wheel and shift lever guard A vehicle protective guard with an arm and a carrier member which in assembled relation encircles the housing of a steering column. When assembled a stop on the arm underlies the transmission shift on the steering column to prevent sufficient movement of ... | 09/29/1987 |