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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7353673 | Locking device and method for unlocking the locking device A locking device and a method for unlocking the locking device are provided. The locking device includes a stationary plug having a first aperture extending therein configured to receive a key. The stationary plug further includes an outer surface, an inner surface ... | 04/08/2008 |
| 7337636 | Anti-theft device An anti-theft device including a shaft divided into first and second brackets and a locking mechanism. First bracket defines first 300a and second 320a edges, second bracket defines first 300b and second 320b e... | 03/04/2008 |
| 7334439 | Accessory lock assembly An accessory lock assembly includes a latch assembly, an outer knob assembly mounted on one side of a door panel to connect with the latch assembly, an inner knob assembly mounted on another side of the door panel to connect with the latch assembly, and a lock reinf... | 02/26/2008 |
| 7302819 | Device for actuating a lock on a vehicle door A device for actuating a lock on a vehicle door has a support mounted on a vehicle door. A lock cylinder mount, or a decoy, is mounted on the support. A screw secures the mount when mounted on the support. The mount has a shoulder engaging a counter shoulder of the ... | 12/04/2007 |
| 7281401 | Protective sleeve for latch mechanism for lock A protective sleeve for a lock includes a circumferential wall delimiting a longitudinal through-hole. The circumferential wall includes at least one longitudinal slot, forming at least one shielding skirt for shielding a housing of a latch mechanism of a lock that ... | 10/16/2007 |
| 7267380 | Rotary latch and housing An improved rotary latch and housing configured to receive a strike is described. The housing includes two parts that are mated together to improve their resistance to impact forces imparted by the strike. The housing is provided with a channel-shaped recess for rec... | 09/11/2007 |
| 7065991 | Safety lock for glass doors The present invention refers to a safety lock for glass doors with a standard cut. This lock has two covers (1 and 9) and a strike plate (13), defining an internal space, inside which it is the lock mechanism of reduce dimensions, where the Hung... | 06/27/2006 |
| 6928844 | Latching device for a lock A latching device for a lock, comprising a housing, a clutch device, a first latch, a first latch driving member, a second latch, a second latch driving member and a latch spring, so as to provide a function of multiple locking actions. ... | 08/16/2005 |
| 6840070 | Door lock A door lock includes a cylinder with a core installed in a door. A flat finger is connected with the core. A latch is movably provided in a latch hole of the door and the flat finger extends through the latch. An inner cover is provided at an interior surface of the... | 01/11/2005 |
| 6598350 | Doorjamb reinforcement plates A structure for reinforcing doorjambs wherein first and second reinforcement plates (32 and 42) are located between the doorjamb (16) and the structure frame (34). Reinforcement plates (32 and 42) are arranged in overlapping fashion and are provided with ... | 07/29/2003 |
| 6547290 | Stress reducing plunger tunnel for an improved door handle housing An improved door handle is provided with a housing having a plunger tunnel designed to dissipate stress forces, such as door seal loads and vibration. The plunger tunnel is D-shaped in cross-section, with a curved interior radius to preclude stress concen... | 04/15/2003 |
| 6502439 | Storage lock mechanism A lock mechanism includes a lock housing having an upper surface with a pair of opposing L-shaped ears, a lower surface with a pair of opposing L-shaped ears, and a front surface with an orifice therethrough. A lock plug cylinder has a face with a key slo... | 01/07/2003 |
| 6412319 | Lockset having keyed egg-shaped knob A keyed knob assembly (10) having a knob portion (12), a knob insert (14) partially received within a bore (18) formed in the knob portion (12) and a shank portion (16) partially covering the knob insert (14) is disclosed. A throughbore (48) formed in the... | 07/02/2002 |
| 6250119 | Mortise lock The invention concerns a multipoint electric lock, comprising at least two mutually spaced locking devices, a rod assembly directly connecting the locking devices together, integral with a housing, which slides in the housing, guided thereon by means of t... | 06/26/2001 |
| 6240754 | Vehicle security device This vehicle security device (40) is a metal plate (38) bolted to a door handle unit inside a vehicle door to prevent unauthorized unlocking of a vehicle door by jamming a thin tool into a vehicle door. And, device (40) prevents unauthorized unlocking of ... | 06/05/2001 |
| 5893282 | Locking device with exchangeable lock insert A locking device for control cabinet doors has a plate with a depression attached to an outwardly facing side of a door leaf. The pivot lever is positioned in the depression. A projection is connected to a face of the plate facing the door leaf, the proje... | 04/13/1999 |
| 5755121 | Lock body having opposing identical molded plastic sections A lock in which a key can neither be turned nor removed with the lock is open, is disclosed. The lock body is formed from two identical sections, the inner surface of each being provided with formations which accommodate the moving parts of the lock. The ... | 05/26/1998 |
| 5722276 | Method for attaching faceplate mounting tabs to a mortise lock housing and tabs and housings adapted for that method A method is provided for attaching separable mounting tabs to a mortise lock housing, including the steps of providing a hollow mortise lock housing in the form of a rectangular parallelepiped with a first side adapted to lie in a door edge and to provide... | 03/03/1998 |
| 5722269 | Locking device for cabinet or cupboard doors A locking device is used for doors of cabinets or cupboards and, more parularly, for doors of modular cupboard systems. In order to create an operationally reliable, inexpensive locking device which is suitable for narrow counterstops and which permits a... | 03/03/1998 |
| 5676002 | Vehicle lock guard Unlocking of a vehicle door by insertion of implements other than the door key into the door is prevented by a guard housing within the door into which the key turnable inner end of the lock cylinder extends and which also encloses an otherwise vulnerable... | 10/14/1997 |
| 5564294 | Musical door lock A musical door lock comprises a generally rectangular housing having enclosed therein door lock, an electric door bell and a battery chamber. When a push-button on the outer periphery is pressed to actuate a sound generator inside the housing, the combine... | 10/15/1996 |
| 5560234 | Lever lock A bolt-operated, vertical-lift lever lock having a lockcase or lock base and a lock cap, provided with a lever housing attached to at least one of the lockcase or lock base and lock cap and, wherein the lever housing is so constructed that the, or each, l... | 10/01/1996 |
| 5335525 | Universal adaptor for deadbolt An adaptor 16 is formed with a pair of cylinders 22 and 24 which are in axial alignment, of different diameters and extend from opposite sides thereof. One of the cylinders 22 and 24 fits in complementary fashion into one of a pair holes 14 and 12, respec... | 08/09/1994 |
| 5316353 | Sleeve for dead bolt A structure is provided to prevent access to the latch pin of a dead bolt or latch lock. For dead bolts, a sleeve is provided which is received over the bolt frame in which the latch pin reciprocates. The sleeve is secured to the frame in such a manner th... | 05/31/1994 |
| 5063765 | Lock protector A lock protector (1) for the barrel (17) of a key operated lock (2) which comprises a sleeve (3) to fit over the barrel (17). The sleeve (3) has a rotatable keyway protector (7) located adjacent the keyway (6) of the lock (2), the keyway protector (7) hav... | 11/12/1991 |
| 4989428 | Device for assembling the headpiece and the casing or casings of a locking device such as a lock, espagnolette, espagnolette-lock or the like A locking device such as a lock, espagnolette, espagnolette-lock and the like comprises a headpiece having an inner face onto which is inserted at least one casing comprising two parallel walls. The assembling between the headpiece and the casing or casin... | 02/05/1991 |
| 4939916 | Lock construction A lock construction including an outer case having a central opening that receives a cylinder. A plurality of plate-type tumblers are mounted for sliding movement within a passage in the cylinder and the tumblers have aligned slots to receive a key. The s... | 07/10/1990 |
| 4916299 | Card recepticle housing An actuator assembly is mounted in a housing and is actuatable by a solenoid carried in the housing. The housing also includes, integral therewith, a card reading arrangement.... | 04/10/1990 |
| 4672828 | Key-in-knob cylinder replacement system A key-in-knob type cylinder replacement system comprises a replacement cylinder having a generally cylindrical shell and a plug having a keyway and housing pin means to prevent the rotation of the plug. A false bible dimensioned to be generally commensura... | 06/16/1987 |
| 4662198 | Axial split-pin tumbler-type lock mechanism for a pop-out lock An axial-split pin tumbler-like lock mechanism for a pop-out lock of the type including a lock cylinder, a forwardly disposed operating spindle part rotatable in the cylinder, a rearwardly disposed sleeve held stationary in the cylinder and adjoining the ... | 05/05/1987 |
| 4602490 | Latching device with adjustable backset The backset of a deadbolt lock may be adjusted selectively between 23/8" and 23/4" by manually shifting a spring-loaded pin which extends through vertical slots in the lock bolt, U-shaped slots in the driver bar and inverted L-shaped slots in the lock cas... | 07/29/1986 |
| 4590777 | Doorlock A key operated doorlock, which may incorporate a deadbolt, has a bolt housing that is mounted on the exterior of the door and is held there by being fastened to a spacer disposed within the door and a mounting plate at the interior side of the door. The m... | 05/27/1986 |
| 4587816 | Lock assembly A lock assembly of the type mounted on a door or like closure structure and including two lock cylinders each at least partially encased and surrounded by a casing structure each of which has reinforcing means formed thereon so as to prevent collapse or d... | 05/13/1986 |
| 4530223 | Guard for key cylinder A rim cylinder protection unit includes a single flat thick solid hardened steel guard plate counterbored to receive the rim of the cylinder. The cylinder is secured to the plate and prevented from rotation by cooperation with a cylinder retaining plate a... | 07/23/1985 |
| 4396812 | Electric, key-controlled switch lock By providing a key actuated tumbler, rotationally journaled in a housing in juxtaposed spaced relationship to a pair of contacts, one of which comprises an elongated resiliently flexible member, with the tumbler incorporating actuating means for controlla... | 08/02/1983 |
| 4369641 | Timelock device A timelock device comprising a mounting plate fixed at a location where the device is to be used, and a separate housing provided with a channel defining a passageway for the locking bolt of a door vault lock. The housing carries a locking pin, a timer an... | 01/25/1983 |
| 4322958 | Door lock with spring bolt and dead bolt In a door lock with spring bolt and dead bolt the lock follower body injection molded from thermoplastic synthetic resin is rotatably mounted in the lock case and resilient in itself without bias and without being influenced by any spring force when by ra... | 04/06/1982 |
| 4294089 | Latchbolt rim lock A latchbolt rim lock of simple sturdy construction with smooth effective operation and long life. A die cast case forms guides for a bolt having a head and draw plate, and has U-shaped ribs on its rear wall to define seats for springs biasing the bolt for... | 10/13/1981 |
| 4182144 | Door handle lock and latch mechanism for corrugated roller doors The present invention relates to a door handle lock and latch mechanism for a corrugated roller shutter door wherein the door handle is situated some distance up from the bottom of the door. The door handle and lock is situated in a corrugation which is open t... | 01/08/1980 |
| 4139999 | Protective door shield and locking mounting A protective door shield and mounting for a lock, particularly a mortise lock or double lock, including a generally U-shaped plate that engages the swingable edge of the door in the region of the lock and a plurality of interchangeable inserts seated in o... | 02/20/1979 |
