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6021655 |
Interchangeable core lock repinning apparatus
An all-in one tool usable by the locksmith in servicing of interchangeable core locks, for lock pin removal and decoding, and lock core repinning and recapping. The tool comprises a body having a...
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5758528 |
System of locking
The present invention provides a system of locking the type of lock which has a cylinder constituted by a static body or barrel and by a rotatory body or core, equipped with a multiplicity of...
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5718136 |
Lost key lock-out cylinder
A rekeyable look includes at least one chamber housing a tumbler pin stack having a master pin disposed between the driver pin and the bottom pin. The bitting of a change code key inserted in the...
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5088306 |
Cylinder lock with changeable keyway
A cylinder lock is capable of providing a changeable keyway by means of elongated warding members which are insertable into a keyway access slot which has a cross-sectional configuration larger...
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5025647 |
Lock arrangement
A mechanical card-serviced lock comprises a housing (1), a locking member (2) which is displaceably arranged in the housing, blocking pins (12, 13) which by means of a key card (4) are mechanically...
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4912953 |
Re-keyable cylinder lock
A cylinder lock is adapted to be re-keyed by a change key which, as an incident to turning a plug in a cylinder, shifts a shuttle transversely of the cylinder. The shuttle carries three sets of...
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4836002 |
Programmable lock apparatus and method
A lock apparatus includes a lock provided with a cylindrical plug having a set of blind holes angularly spaced from the set of pinways in the plug. A longitudinal slot through the center of the...
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4747281 |
Randomly and integrally re-keyable lock apparatus and method
A lock apparatus includes a key-in-knob lock, padlock or other type of 90° lock provided with a cylindrical plug having a keyway for receiving a master key that has bittings for positioning a...
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4691545 |
Safety lock with plural tumblers, having a shaped consent stud
A safety lock with gorge levers, intended to be operated by a web-type key, in which the consent stud, connected to the plate with latches and traversing the windows with opposite teeth of the...
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4627252 |
Coded-card type lock device
A coded-card type lock device includes in combination: an outer housing body for being fixed on a door; a locking unit with a sliding slot and a plurality of partitioning spaces installed in the...
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4616492 |
Key combination lock
The combination lock is one wherein movable members of the combination mechanism are set in decoding position by a key in the form of a rotatable shaft with a head at one end serving as a handle....
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4539829 |
Cylinder lock permitting extraction of broken key
A cylinder lock which comprises a housing and, rotatably accommodated therein, a cylinder having an axially extending key slot for reception of, and rotation by, a mating key to unlock the lock....
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4531390 |
Lock capping
A utility cylindrical lock set having a series of pin tumbler bores accommodating a plurality of pin stacks and biasing springs is provided with an improved cap. The external surface of a...
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4440009 |
Rekeyable lock method and apparatus
A rekeyable cylinder lock includes removeable spacers between top and bottom tumbler pins, and a key bit device for removing a spacer from the pin chamber through the key way. The key bit device...
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4359884 |
Dual key locks having improved precision and versatility
The lock configuration described in the parent application enables a dual key lock to operate efficiently, accurately and conveniently with a single stack of tumblers. Also, the individual tumblers...
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4332153 |
Dual key locks with multi-function tumblers
The invention provides an improved lock configuration by which a dual key lock can operate efficiently and conveniently with a single stack of tumblers. That configuration permits more accurate...
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4266415 |
Pneumatic door locks
A door lock, in particular a lock for hotel room doors. Actuation of the exterior door handle creates a supply of compressed air which is directed through a coding assembly to actuate a lock...
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4231242 |
Plug for a key operated lock
A plug for a key operated lock is provided with a plurality of bores transverse to the key slot formed through the plug. The bores accept studs which extend into the key slot to delimit the design...
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4114410 |
Locking device and means for actuating this device
The invention relates to an improved device for opening a lock and a means for actuating the device. The device is characterized by a moving plunger or rotating wheel which is provided with slots...
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3877267 |
SIDE BAR LOCK AND KEY MECHANISM
A lock mechanism comprising tumblers to engage a key, a first member, and a second member. The first and second members, which may be a plug and shell or a cylinder and side bar, are movable...
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3702553 |
CYLINDER LOCK PLUG
A cylinder lock plug comprising two plug sections adapted to mate on facing surfaces defining a keyway, with the periphery of the sections adapted to slide into a cylindrical plug sleeve containing...
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3505841 |
COMBINATION LOCK
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3492842 |
LOCK CYLINDER UNIT
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3293893 |
Pin tumbler lock
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1004904 |
Title is not available
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RE11152 |
Title is not available
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