Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8181496 | U-lock cross brace A cross brace for securing on a U-lock having a U-shaped shackle with the cross brace comprising first and second engaging members and a connecting member therebetween. The first engaging member defines a first through bore having a first opening and a first central... | 05/22/2012 |
| 7856855 | Lock assembly with removable shackle A lock assembly has a lock body and a shackle. The shackle has a leg. A locking element is disposed in the lock body. The locking element is selectively engageable to the shackle. A cam is disposed in the lock body. The cam has a lock position for moving the locking... | 12/28/2010 |
| 7472568 | Padlock with a quickly changeable shackle and padlock with a freely convertible deadlock mechanism The invention provides a padlock with a quickly changeable shackle, comprising a locking core, a locking member, blocking balls, a lock body on which two limb receiving chambers and a passage are disposed, and a shackle which takes U-shape defined by a longer and a ... | 01/06/2009 |
| 7418844 | Lock with integral pump A combination lock and pump having a shackle; a cross-member having a first end and a second end, the cross-member including a hole at the first end and a hole at the second end adapted to receive the shackle; a locking mechanism adapted to engage the shackle at the... | 09/02/2008 |
| 7353671 | Adjustable width coupler latch lock An adjustable coupler lock for locking a trailer hitch such that a trailer cannot be removed from a vehicle. The coupler lock comprises a lock body with a locking mechanism and a locking plate, and also comprises a shaft having a narrow and a flange end, and also ha... | 04/08/2008 |
| 7318530 | Skateboard security rack An skateboard security rack having a pair of support members defining a slot therebetween for receiving the deck of a skateboard. At least one of the support members has a width smaller than the wheelbase of the skateboard received in the slot. Locking structure bet... | 01/15/2008 |
| 7278283 | Padlock A padlock has a lock body comprising a housing, furthermore a lock hoop adjustably secured to the lock body, a lock cylinder accommodated in the housing and a latching mechanism accommodated in the housing. The latching mechanism enables a latching of the hoop to th... | 10/09/2007 |
| 7233231 | Vehicle steering wheel lock with a burglar-proof alarm device A vehicle steering wheel lock with a burglar-proof alarm device comprises a burglar-proof alarm circuit, A wireless signal detecting unit, an air pressure detecting unit; supersonic detecting unit for detecting movements of objects; an infrared receiver for receivin... | 06/19/2007 |
| 7165427 | Lock device for a box A lock device for a box includes a locking shaft, a lock shell, a lock core, a limiting unit, and a key. The lock shell has a surrounding shell wall that confines a core-receiving space, and that is formed with an insert hole in spatial communication with the core-r... | 01/23/2007 |
| 7121121 | Locking device for trailer hitches and method therefor A method and apparatus to secure the coupler section of a trailer provides a locking device that includes a lock housing having a hitch ball element to engage the recess in the coupler, a shackle member lockable to the housing and having a bridge section that spans ... | 10/17/2006 |
| 7036344 | Padlock An improved padlock having a shackle retainer assembly that can be removed without removal of the padlock key locking assembly and/or convertible from a key retaining to a key nonretaining lock, or vice versa, by removal or insertion of a pin on the driver end of th... | 05/02/2006 |
| 7021095 | Apparatus and method for controlling access to stored keys A system and apparatus for controlling keys or other objects is provided. The key can only be removed when an access control key identifying the individual who is removing the key is inserted. The access control key cannot be removed until the key is returned. ... | 04/04/2006 |
| 7017378 | Padlock A padlock is locked by inserting a key into the keyhole and turned to rotate the rotary member of a lock core together with a stop block to let the engage groove of the stop block be disengaged from the annular groove of a movable bolt and make a spring extend outwa... | 03/28/2006 |
| 7013686 | Motorbike lock A motorbike lock includes a cylindrical body, two limit discs, two springs, a retainer, a core, a press button, a sleeve, a cap and a shackle. When the pressure button is pushed inward, the retainer is moved to force the core push the limit discs to compress the spr... | 03/21/2006 |
| 6966584 | Padlock seal A molded thermoplastic body is formed with a rectangular cavity. A molded thermoplastic insert is welded to the body in the cavity and has a top cross member, a stem member and a bottom member. The stem member has a plurality of molded fingers cantilevered on opposi... | 11/22/2005 |
| 6923027 | Cable lock assembly to ensure stable linear movement of the latch bolt A lock assembly includes a casing containing a cylinder assembly, a rotary bolt driver and a shank inside the casing. The rotary bolt driver has a crossbar to selectively abut two stop blocks formed on a latching disk. Thus the rotational movement of the rotary bolt... | 08/02/2005 |
| 6766673 | Padlock An improved padlock having a shackle retainer assembly that can be removed without removal of the padlock key locking assembly and/or convertible from a key retaining to a key nonretaining lock, or vice versa, by removal or insertion of a pin on the driver end of th... | 07/27/2004 |
| 6718802 | Tamper resistant lock A lock that is tamper resistant and includes a lock member. Two tubes are disposed on the lock member. Each of the two tubes extend generally outwardly therefrom and each define a bore therethrough. The lock includes a closure member which has two shafts. The two sh... | 04/13/2004 |
| 6694781 | Tow-deterrent lock for camping trailers A tow-deterrent lock for camping trailers includes a latch assembly and a latch bolt dock coupling with each other. The latch bolt dock has a transverse beam on one end that has an inner side bonding to a spherical shell which has a housing chamber with a... | 02/24/2004 |
| 6666051 | Guarding lock for camping trailer A guarding lock for a camping trailer and particularly an anti-theft guarding lock for a camping trailer to prevent the trailer from being stolen and hauled away illegitimately mainly includes a lock having a semispherical dome located thereon. A U-shaped... | 12/23/2003 |
| 6584815 | Hoop lock The invention elates to a hoop lock comprising a lock body and a hoop. The hoop can be coupled a its hoop ends to the lock body and latched thereto in the coupled state wherein two force cells spatially separated from one another are arranged in the lock ... | 07/01/2003 |
| 6530248 | Lock device This invention relates to a lock assembly to be used in conjunction with two or more padlock assemblies. The lock assembly comprises a main body 1, a main shackle 2, and a locking portion 7. When all subsidiary padlocks 5, 6 are locked into the apertures ... | 03/11/2003 |
| 6457336 | Lock A lock, in particular a brake disk lock for motorcycles, comprising a lock housing and a bolt lockable thereto; with the bolt having a stop member, a bolt head and a bolt neck arranged therebetween, and with the lock housing having a receiving region to r... | 10/01/2002 |
| 6430975 | Tie lock assemblage with replaceable lock mechanism Changing the locking mechanism in a U-lock, cable lock or other tie lock as often as desired is achieved without compromising the lock's resistance to physical damage. This function is achieved by an auxiliary sleeve that removably fits over the U-lock's ... | 08/13/2002 |
| 6415635 | Locking device for a helmet A device for locking a bicycle helmet to a bicycle, the helmet comprising a helmet shell (19) having a through-going hole (20). A lock case (4) is fixedly mounted on a frame rod (2), the frame rod being arranged to support the saddle (1) of the bicycle. A... | 07/09/2002 |
| 6397648 | U-lock keyway protector A keyway protector having housing and the slider. The housing hugs the crossbar of a U-lock and secured by screws. The slider fits into a shallow depression in the inner surface of the housing and moves between open and closed positions. In the open posit... | 06/04/2002 |
| 6393411 | Device and method for authorized funds transfer A secure funds device for use with a computer system, such as a personal computer, for transferring funds, in response to a funds transfer request for amounts of funds from the computer system, to a funds receiver. One or more electronic cash devices stor... | 05/21/2002 |
| 6373382 | Bicycle theft protection system Embodiments of an alarm system are described, which may be mounted or built-in to a bicycle or other device which is in need of anti-theft protection. A loud alarm is connected to or mounted in the protected device, and is operatively connected to either ... | 04/16/2002 |
| 6341509 | Tie lock assemblage with replaceable lock mechanism Changing the locking mechanism in a U-lock, cable lock or other tie lock as often as desired is achieved without compromising the lock's resistance to physical damage. This function is achieved by an auxiliary sleeve that removably fits over the U-lock's ... | 01/29/2002 |
| 6101852 | Padlock with removable shackle An improved padlock assembly is provided which includes a lock body, a shackle with a pair of opposed legs fitting into the lock body, and the lock body including an interior chamber in which are positioned a pair of reciprocal lock plates. A first lock p... | 08/15/2000 |
| 6055833 | Plug lock A plug lock assembly is provided. The assembly comprises a sleeve member to which a detent catch member, a cylinder member, and a latch member are coupled. The detent catch member engages a face wall portion of the sleeve member through cooperating camber... | 05/02/2000 |
| 6043733 | Vehicle lock having an integral alarm and signal transmission means A lock for a vehicle such as a motorcycle includes a housing having a U-shaped portion and a transverse portion attached thereto. A first terminal end of the U-shaped portion is removeably received within an opening on the transverse portion allowing the ... | 03/28/2000 |
| 6026663 | Long shackle padlock A long shackle padlock includes a cylindrical housing, a lock housing fitted in the cylindrical housing, a locking means protected in the lock housing, and a shackle. The locking means can move a first bead and a second bead with a coil spring interposed ... | 02/22/2000 |
| 5987940 | U-shaped lock A U-shaped lock includes a housing, a shackle holder and a cap closing the housing. A U-shaped shackle has two ends inserted in two shackle holes in the cap and the shackle holder. A lock unit with a pin tumbler mechanism is fixed in a lock hole of the sh... | 11/23/1999 |
| 5950461 | Lock mechanism structure A lock mechanism structure includes a pair of latches with one end of each latch positioned against a spring and the other end of which are engaged with a rod. A block has a spring urging the block outwardly which in turn urges the latches outwardly to ex... | 09/14/1999 |
| 5921115 | Security device A device is adapted for use primarily as a theft deterrent for bicycles, mopeds and other two and three wheeled self propelled or motorized conveyances, said device comprises a pair of opposed, telescopically engaging U-shaped members and locking means as... | 07/13/1999 |
| 5921116 | Vehicle pedal lock A vehicle pedal lock comprises first and second members movable relative to one another and adapted for locking and unlocking engagement, and a lock assembly for locking the first and second members to one another. The first member has a shackle and at le... | 07/13/1999 |
| 5916283 | Key ring lock assembly An improved key ring lock assembly including a lock mechanism having an open position and a locked position which is formed by at least a lock barrel, a lock cylinder fitted within the lock barrel, the lock cylinder having a front key way and a lock mecha... | 06/29/1999 |
| 5901588 | Locking apparatus for a skateboard A locking apparatus for locking a skateboard, snowboard, bicycle, or the like to a fixed object, such as a post or pole. The locking apparatus includes a "Y"- or "y"-shaped shackle with two legs, or an "E"-shaped shackle with three legs, each leg having a... | 05/11/1999 |
| 5901586 | Anti-theft device for aircraft A pair of U-shaped or V-shaped collar members of hardened steel are adapted to be lockingly interengaged about a propeller blade of an aircraft propeller to provide an anti-theft device for the aircraft by providing an unbalanced propeller condition in re... | 05/11/1999 |
