Class 70/375 - Plug

Subclass of Class 70 - Locks
Definition: Subject matter relating to specially constructed plugs or
No. of patents: 113
Last issue date: 05/29/2012

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Number	Title	Issue Date
8186193	Lock cylinder structure A lock cylinder structure comprises a cylinder body, a plug disposed within the cylinder body, a pin assembly and a key positioning assembly. The cylinder body has a plurality of upper pin holes and an accommodating hole. The plug has an outside wall, a keyhole, a p...	05/29/2012
8146395	Anti-theft lock with plate tumblers An anti-theft lock with plate tumblers includes two axial grooves (18) which are disposed at diametrically opposite locations on an inner wall of the lock (1) and an annular groove (10) which has a rectangular cross section and is provided on th...	04/03/2012
8091393	Multi-piece plug assembly for a cylinder lock A cylinder lock assembly includes a cylinder body and a plug assembly which is manufactured in a multiple of pieces to facilitate casting of each plug piece in a single operation. The plug assembly includes a plug body with a plug insert opening to receive a plug in...	01/10/2012
7980105	Wafer-type tumbler cylinder A wafer-type tumbler cylinder comprises a sleeve, a cylinder, a plurality of first and second wafers, some springs and some U-shaped fixtures. The wafer-type tumbler cylinder is an integral cylindrical shaft having indentations, fixing slots and riveting plates made...	07/19/2011
7895866	Multi-piece plug assembly for a cylinder lock A cylinder lock assembly includes a cylinder body and a plug assembly which is manufactured in a multiple of pieces to facilitate casting of each plug piece in a single operation. The plug assembly includes a plug body with a plug insert opening to receive a plug in...	03/01/2011
7762111	Multi-piece plug assembly for a cylinder lock A cylinder lock assembly includes a cylinder body and a plug assembly which is manufactured in a multiple of pieces to facilitate casting of each plug piece in a single operation. The plug assembly includes a plug body with a plug insert opening to receive a plug in...	07/27/2010
7685852	Tool for pin tumbler locks A tool for loading pin stack elements into a pin tumbler lock includes a cylindrical shank of diameter similar to the diameter of the lock plug, a loading groove extending along at least a shank portion corresponding to the length of the set of pin chambers and inte...	03/30/2010
7685853	Pin-a-plug time saving device for re-keying a lock A device for re-keying a lock that frees the locksmith from having to handle individual tumblers. A magazine is provided for each tumbler in the lock. Each magazine is numbered or coded to indicate the size of the tumblers within. The magazines fit into the top of a...	03/30/2010
7634929	Cylinder core The invention relates to a cylinder core (1) which can be mounted in a rotatable manner in a locking device, in particular of a storage compartment or of a glove compartment of a motor vehicle, and has a head region (6), which has a key channel (2	12/22/2009
7428836	Door lock having reinforced strength A door lock includes a support seat having a recess for mounting a driven member, a control knob including a drive member rotatably mounted in the support seat to rotate the driven member and a rotation member to rotate the drive member and having an outer wall form...	09/30/2008
7350382	Turnbuckle lock A turnbuckle lock for use on a thin-walled door includes a locking tongue and actuating mechanism that are formed as one piece with one another. An inner seal disposed between the housing and actuating mechanism is formed by being sprayed onto the housing. The actua...	04/01/2008
7260965	Locking device A locking device, which mounts a user key (the first key) and a manager key (the second key) separatedly, places a first lock and a second lock unitedly in an outer cylinder. The first lock is opened or rotated by the first key. After the first lock is open, the fir...	08/28/2007
7234330	Lock with an improved configuration A lock with an improved configuration comprises a housing and a cylindrical member mounted in the housing. A lock core is mounted in the cylindrical member. The lock is characterized in that the cylindrical member comprises either nine or eleven pin recesses at the ...	06/26/2007
7225649	Locking device having flange seal A locking device includes a shackle member that includes an elongated shank portion, a stop portion on a first end and a latch portion on a second end. A locking head includes a locking mechanism that has an entryway to receive the latch portion and is movable betwe...	06/05/2007
7194876	Modified lock plug A lock plug comprising a top end having a key way etched out of a solid wall, the key way leading to an interior of the lock plug housing a locking mechanism; and, a break away wall bordering a cavity carved out from the solid wall on a side of the key way, the brea...	03/27/2007
7181938	Anti-pick mogul cylinder The lock cylinder assembly of the present invention incorporates a number of features designed to defeat attempts to pick or destroy the lock. The lock cylinder assembly employs multiple arrays of pass key pins, making picking of the lock much more difficult. Second...	02/27/2007
7146833	Closing cylinder The description relates to a closing cylinder for closure devices comprising a cylindrical closing housing which can be received in a fixed manner in an opening formed by a handle, closure device or the like, a closing core (18) is rotatably mounted in this c...	12/12/2006
7100409	Burglarproof lock core structure The present invention provides a burglarproof lock core structure which forms a curved passage between a key slot of a plug and a lower pin chamber, such that at least a bending concave surface offsetting the center of the key slot is formed at one side, and cone ap...	09/05/2006
7100408	Front loading lock assembly A lock assembly includes a housing, a core assembly and a retainer. The housing includes a housing retainer groove located generally transverse to an axis defined by a bore through the housing, which corresponds with a core retainer groove. When the core assembly is...	09/05/2006
7059160	Rotary locking cylinder for a safety lock The rotary locking cylinder comprises a housing (5) and at least one rotor (8) provided with a key channel (27). Tumblers are provided to rotationally release the armature (8) with a key (17) associated therewith. A driver (6	06/13/2006
6959567	Lid device of double-sided auxiliary lock A lid device of a double-sided auxiliary lock comprises an inner annular wall, an outer annular wall and a plurality of engaging portions. The engaging portions are equi-spaced on the outer annular wall. A double-sided auxiliary lock has an interior auxiliary lock a...	11/01/2005
6935146	Changeable lock assembly A lock assembly has a housing, a cylinder, a main adjusting pin assembly, a sub-adjusting pin assembly and multiple locking pin assemblies. The housing has multiple sets of pin holes, two main adjusting holes and two sub-adjusting holes. The three holes of the sets ...	08/30/2005
6925844	Lock having a helical keyway and accompanying key and methods therefor The present application advantageously provides at least one keyway in a lock core that poses tremendous difficulty for a lock breaker by not allowing the lock breaker to see all of the pin tumblers in the keyway. The keyway according to a preferred embodiment of th...	08/09/2005
6910356	Anti-pick mogul cylinder The lock cylinder assembly of the present invention incorporates a number of features designed to defeat attempts to pick or destroy the lock. The lock cylinder assembly employs multiple arrays of pass key pins, making picking of the lock much more difficult. Second...	06/28/2005
6889533	Removable keyless turning mechanism for locks A removable thumbturn core assembly which replaces a key core assembly after removing a key cylinder with a control key. The control key feature is preserved for removing the key cylinder. ...	05/10/2005
6840073	Lid device of double-sided auxiliary lock A lid device of a double-sided auxiliary lock, the lid device includes an inner annular wall, an outer annular wall and engaging portions. The engaging portions are equi-spaced on the outer annular wall. A double-sided auxiliary lock has an interior auxiliary lock a...	01/11/2005
6698264	Core assembly for a lock A core assembly for a lock includes a core, a sleeve, and a housing. The core has a keyhole longitudinally defined therein. An elongated slot is defined beside and communicated with the keyhole. Multiple lower lock balls are received in the core and not a...	03/02/2004
6679090	Removable core lock with increased rotation There is disclosed an improved rotatable cylinder lock having a removable lock core. The lock core is removable from the lock housing for locking applications that require the lock to have up to 180° of lock core rotation. The invention is accomplished t...	01/20/2004
6668607	Lock core A lock core includes a lower and an upper lock cover and a lock plate. The upper lock cover has the recessed hollow provided with a plurality of recessed holes respectively fitted therein with at least one steel ball. Thus, when a burglar employs an elect...	12/30/2003
6666057	Lock with a fixable key A lock with a fixable key includes a shell, an upper half core, a lower half core, an elastic member and a fixable key. The upper and the lower half core contained in the shell respectively have a lengthwise passageway for a flexible moving member of the ...	12/23/2003
6644078	Lock furnished with a replaceable lock core A lock furnished with a replaceable lock core, in which the inner lock assembly includes a lock core, a sleeve, and a control ring; the inner lock assembly is mounted in a fixed lock casing; the inner lock assembly and the lock casing are assembled togeth...	11/11/2003
6584819	Lock with two layers of lock mechanism A lock with two layers of lock mechanism, which comprises a body casing, an upper lock body, a lower lock body, a connection plate and a key; the chamber of the body casing is used for mounting the two lock bodies; the two lock bodies are connected togeth...	07/01/2003
6550299	Cylinder lock adaptable for different keys A cylinder lock has a first tumbler, a second tumbler and a third tumbler all received in a hollow cylindrical housing. The first tumbler is selectively rotatable relative to the second tumbler and the second tumbler together with the first tumbler is sel...	04/22/2003
6532782	Detachable lock core A detachable lock core has a housing. The housing has an opening, a ridge longitudinally formed thereon a plurality of first apertures defined through the ridge, a plurality of upper pins and resilient members respectively received in the first apertures,...	03/18/2003
6532781	Built-in safety device and key for a safety lock The invention relates to a built-in safety device comprising a housing (3) and a rotor (4) mounted therein. Tumblers (8) are mounted in the housing (3) and in the rotor (4). The maximal length (A) of the built-in safety device (1) is approximately 40 mm, ...	03/18/2003
6427506	Flat-key lock A lock has a flat key having a flat blade extending along a key axis and having an axially extending edge formed to each side of a central axially extending key plane with a pair of axially extending inner edge surfaces flanking the key plane and each for...	08/06/2002
6408662	Locking device with key-operated lock A locking device with a key-operated lock is disclosed which includes a cylindrical member having a front open end and a rear end, locking means rotatably supported on the rear end of the cylindrical member, the locking means having a locking bar and an e...	06/25/2002
6393883	Tubular keyed cam lock with screw attachment The present invention provides a tubular keyed cam lock with increased resistance to tampering. The cam lock has a rear screw which attaches the cam to the rotatable cam of the lock, thereby increasing the strength of the lock by preventing the lock from ...	05/28/2002
6357271	Multi-layer type lock core structure of a cylindrical lock A multi-layer type lock core structure of a cylindrical lock, having multi-layer and multi-pin design which provides numerous possibility of change and enhances the safety of the lock. There are twelve sets of upper pins and ten sets of lower pins. The up...	03/19/2002
6263713	Shearable lock assembly and method of manufacture A lock and a method for manufacturing the lock. The lock comprises a shell having an interior cavity, a plug received in the interior cavity rotatably and axially slidably therein and defining a keyway configured to receive a preselected key, and a tumble...	07/24/2001

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Class 70/375 - Plug