Abstract: A sliding bar contains a slot on one end so that bar movement passes shackle rods of an opened padlock. The bar is positioned on a rigid arm extending from a column that also supports a plate which can be rotated. Shackles of multiple padlocks are held uniformly on the plate. Shape of bar is such that its effective movement cannot occur when padlocks are closed. When a specific padlock is opened with its required key and rotated so its lengthened shackle rods are in front of the bar, movement of bar can occur. The slot allows sufficient bar movement to actuate a powered gate-opener, release a gate latch, or initiate other action. Imprinted numbers identify each padlock, and a pointer aids shackle-arm location in front of slotted bar. Advantages include security, access from car-windows, identifying unauthorized key-holders, and elimination of multiple key replacements when only one lock is used. Equipment size can vary so as to service between 7 and more than 150 authorized individuals.

Abstract: A door latching device is disclosed that is mountable to conventional doors, including cargo container doors and garage doors, for preventing opening thereof. A conventional keyed lock, such as a padlock or puck-shaped protected shackle lock, couples with the latching device to lock the latching device in a latched position with a door. The latching device includes a rigid housing having an attachment bolt affixed thereto for securing the latching device to the door, a slidable locking pin having an opening for receiving a locking pin ingress/egress. In a locked position, the locking pin protrudes from the housing, and the lock is coupled with the locking pin to prevent movement of the same. In an unlocked position, the lock is uncoupled from the locking pin to permit sliding of the locking pin. The housing provides limited access to the lock once the lock is coupled with the locking pin.

Abstract: A latch has a sliding bar, and multiple push bolts that each accept padlocks. The sliding bar is released by removing a padlock and pushing the corresponding push bolt. There is a master push bolt, with the remaining push bolts being slave push bolts. A master user, by removing the padlock from the master push bolt, can activate or deactivate any of the slave push bolts. Guard plates extend between and outside of the push bolts to protect the padlocks.

Abstract: The system for monitoring and dispensing medical items which are dispensed for administration to patients includes a data terminal (76, 338) which is connected through a network (82, 328) to at least one remote computer (84, 324) having a processor and a data store. The system also includes a reading device (348) which is connected to the network. A user of the data terminal or the reading device is enabled to select a patient for whom medical items will be used, and responsive to a request to dispense items the requested items are dispensed from dispensing devices (96, 100, 344, 346, 450, 527) connected to the data terminal. A report generating device (384) generates reports (388) which include machine readable indicia corresponding to patients and/or medical items. Users may select patients and dispense medications by reading the indicia from the reports using the reading device.

Abstract: A lock system for a horizontal tool box wherein the latching mechanism for the lid may be operated from the proximal end of the toolbox and locking is achieved by means of a single padlock which is likewise located at the proximal end of the toolbox. An elongated latch rod is slidably disposed adjacent a front wall of either the body or lid components of the box. The padlock and the elongated latch rod are disposed such that the padlock body blocks the longitudinal movement of the proximal end of the latch rod and maintains the latch rod in the latched position when the body components are in the closed position and the padlock is locked, but the proximal end of the latch rod passes between the shackle and the padlock body to move the latch rod to the release position when the padlock is unlocked.

Abstract: There is provided a lock system for securing a printer door to prevent theft of an ink cartridge. The lock system comprises a lock housing that is attachable adjacent the printer door and which has a lateral aperture extending generally parallel thereto. The lock system further comprises a locking member disposed within the lateral aperture and which is slidable therealong between unlock and lock positions. Its locking portion becomes substantially retracted within the lateral aperture when in the unlock position. The locking portion becomes extended over the printer door when in the lock position to secure the same and prevent theft of the ink cartridge thereby.

Abstract: A locking device is provided which is configured to mount to a frame having a locking bar receiving surface therein, which includes a housing for an enclosure with a door opening and a door and having a lock for locking the door to the enclosure about the door opening. A first bar is removably disposable within the locking bar receiving surface and when received therein the device is in a locked position and when removed therefrom is in an unlocked position. A second bar is at least partially movably disposed within the enclosure and is in a laterally spaced and parallel relation with respect to the first bar. Another bar interconnects the first bar and the second bar for providing that the bars move parallel to one another to and from the locked position to the unlocked position. Also, a second lock for locking the device to the frame is disposed within the enclosure having limited accessibility when the door is open.

Abstract: A lock for a door comprises a casing, a bolt operable to extend from or retract into the casing, a pivoted operating handle operable at one side of the door to retract the bolt, lock means for key operation at the other side of the door, and blocking means to prevent operation of the handle to retract the bolt. In a locked closed position of the door, the bolt is extended, and with the blocking means operated, key operation of the exterior lock means both retracts the bolt and also de-actuates the blocking means. At the inside of the door further key operable lock means are provided solely to operate and, if required, to de-actuate, the blocking means.

Abstract: A lock for a door (10) comprising a casing (11), a bolt (55) operable to extend from or retract into the casing, a pivoted operating handle (36) operable at one side of the door movable from a rest position to an operating position to retract the bolt, the interior of the casing having a lug (21) through which a screw (27) passes into engagement in a tapped hole (23) in a fixing plate (12a) which is secured to said one side of the door, thereby indirectly securing the casing to the door. A screwdriver blade (27a) can be inserted through an opening (34, 35) in the casing to access the screw (27) when the handle is in its operating position, such access being prevented when the handle is in its rest position, by said handle blocking said opening, the handle being lockable in its rest position from said one side of the wing.

Abstract: A freezer door handle and lock assembly comprises a pull handle having a mounting end formed with a slot that is adapted to be mounted to a freezer door. A deadbolt is mounted in the pull handle mounting end for reciprocal movement along a path of travel between deadbolt locking and unlocking positions. A manual push bar extends from the deadbolt to the exterior of the handle mounting end through the mounting end slot. Means are provided for locking the deadbolt in its locking position. A strike is also provided for receiving the deadbolt.

Abstract: An enclosed and concealed lock device is disclosed which provides a high degree of security. The device is resistant to tampering and to brute force destruction. One or more latches are engageable with a strike plate in a door jamb or with a strike box, which is also enclosed. A seal trim prevents access to the latch. A slide assembly having a padlock is located within a latch enclosure. An orifice on a pivotal link attaches to the shackle of the padlock. Locking the padlock raises the padlock body into the protective latch box enclosure, and prevents movement of the slide assembly. A first limiter restricts vertical movement of the shackle, allowing the padlock to be engaged by upward movement of the padlock body.

Abstract: A storage unit door locking system is shown for securing and locking a storage unit door and preventing forced entry wherein the door is attached to a doorjamb. The locking system has a door plate which is mounted to the door with an extension plate that extends beyond the edge of the door and abuts the front face of the doorjamb when the door is closed. A sliding bolt slidably mounted to, but spaced apart from, the door plate slides behind the doorjamb trapping the doorjambs between the extension plate and the sliding bolt. A recessed lock is inserted through matching aligned holes in the extension plate, doorjamb, and sliding bolt and locked. This physically locks the doorjamb to the extension plate and sliding bolt which prevents forced entry with the use of crowbars or other prying devices normally used to separate the doorjamb from the door and locks contained thereon.

Abstract: A lock for a door (10) comprising a casing (11), a bolt (55) operable to extend from or retract into the casing, a pivoted operating handle (36) operable at one side of the door movable from a rest position to an operating position to retract the bolt, the interior of the casing having a lug (21) through which a screw (27) passes into engagement in a tapped hole (23) in a fixing plate (12a) which is secured to said one side of the door, thereby indirectly securing the casing to the door. A screwdriver blade (27a) can be inserted through an opening (34, 35) in the casing to access the screw (27) when the handle is in its operating position, such access being prevented when the handle is in its rest position, by said handle blocking said opening, the handle being lockable in its rest position from said one side of the wing.

Abstract: A lock for a door (10) comprises a casing (11), a bolt (55) operable to extend from or retract into the casing, a pivoted operating handle (36) operable at one side of the door to retract the bolt, lock means (28) for key operation at the other side of the door, and blocking means (81) to prevent operation of the handle to retract the bolt. In a locked closed position of the door, the bolt (55) is extended and with the blocking means operated, key operation of the exterior lock means (28) both retracts the bolt and also de-actuates the blocking means. At the inside of the door further key operable lock means (39, 40) are provided solely to operate and, if required to de-actuate, the blocking means.

Abstract: The bolt lock with protective cover has a back enclosure containing a sliding bolt which combination is inserted into a cover enclosure. The cover enclosure with back enclosure is attached to a door, gate or other such structure for purposes of securing the closure. The sliding bolt is slidably engaged with an insertion end, a bolt end and an intermediate element to guide and retain the bolt for slidable engagement with a shackle and retention of a padlock. The slide bolt has orthogonal locking pins and a handle to move the slide bolt into a locked and unlocked position and to retain the bolt when the padlock is locked. A bolt lock end passes through a hole in the back enclosure bolt end and an exit hole in the cover enclosure bolt end to engage a structure such as door jamb.

Abstract: A system 10 for remote operation of a deadbolt lock locks or unlocks a deadbolt 22 associated with a door 14 with a remotely-operated actuator 28 that is operationally coupled to deadbolt 22. The system 10 can convert an existing manually operated deadbolt 22 into a remotely operated deadbolt by replacing an existing turnpiece associated with the manually operated deadbolt with a remotely operated actuator 28. Alternatively, the system 10 can lock door 14 of building 12 by mounting system 10 on or in either door 14 or building 12. System 10 can cooperate with other security systems in the building, including a siren 34 or a window sensor 46.

Abstract: A door locking assembly is provided including a base having a pair of halves. A first one of the halves is adapted for being mounted to a door and a second one of the halves for being mounted on a door frame. The halves each include a slot formed therein. A sliding bar is included having a first orientation in engagement with both slots of the base for precluding the door from being opened and a second orientation with only one of the slots of the base receiving the sliding bar for allowing the door to be opened. Next provided is a cover removably mounted over the sliding bar for precluding the same from being removed from the first orientation. For precluding the removal of the cover, a locking mechanism is included which is adapted to engage both the cover and the sliding bar.

Abstract: A lock comprising an elongated, parallelepiped housing with an internal sliding latch with a centrally located shackle pin that is selectively secured with a tumbler casing to immobilize the latch to secure a door. The housing comprises a base that is affixed to the door and a faceplate set-off from the base by an integral top and parallel bottom. The top, bottom, faceplate and base establish a channel in which the latch moves. The latch comprises a planar body with spaced apart ends. One end comprises a bolt that inserts into a conventional keeper secured to the facility wall. The other latch end comprises an outwardly protruding handle that facilitates user manipulation. A pair of spaced apart slots are defined proximate the latch ends to permit the mounting bolts to extend through the latch and an oval-shaped slot defined adjacent the latch center permits a shackle pin to extend therethrough. The shackle pin secures a removable tumbler casing that immobilizes the sliding latch.

Abstract: A multiple access locking device is provided which is capable of being opened by any different number of users. The device includes first and second receptacle members and an elongate locking bar which, when removed from the receptacle members, allows the receptacle members to be moved relative to each other. The first receptacle member includes a tab with an opening therein and the elongate locking bar includes a similar tab with an opening. A plurality of coupling segments are placed on the locking bar between the tabs of the first receptacle member and locking bar. The coupling segments are identically configured and define a pair of radially extending tabs each having an opening for receiving a lock. Accordingly, a plurality of locks is placed through the respective openings and any one lock can unlock the multiple access device.

Abstract: A lock mechanism is provided which may actuate both a deadbolt and flush bolts in response to a single lock movement. The mechanism includes a dual element bolt throw and flush bolt actuator, which locks in place in the extended position if the end of the bolt is pressed inwardly. The throw includes a transfer mechanism which transposes the horizontal movement of the bolt to vertical movement at the flush bolts. The flush bolts also include a mechanism to limit retraction thereof if the extending ends of the flush bolt is exposed to inward directed force. The entire lock mechanism may be actuated by a standard cylindrical lockset having actuating jaws extending therefrom.

Abstract: A high security deadbolt assembly for a door which bolt has a housing extending from the edge of the door inwardly of the transverse bore between the door surface. A deadbolt is reciprocable in the housing and has a recess at its inner end. A cylindrical drive member is rotatively supported in the housing and is located with or is aligned with the deadbolt recess. The drive member carries a stop and is connected to the bolt by a linkage. When locked, a substantial portion of the length of the bolt remains engaged in the bolt housing and door so that attempts at forcing the bolt to the unlocked position are resisted by the stop which stop engages an internal surface of the bolt recess. The components are made from high strength materials and the deadbolt assembly may be retrofit to existing lock cylinders with a minimum of installation modifications.

Abstract: A security lock having a main locking bolt connected to a U-shaped tail member slidably mounted in a housing secured to the door. The U-shaped tail member has an upper branch engaged by a turnable driving arm for movement between a retracted unlocked position for the main bolt and an extended locked position therefor. A spring biasses the driving arm to move the U-shaped tail member to the extended locked position. A key cylinder and an interior handle are connected to the driving arm to turn the arm and unlock the bolt. A spring-loaded latch is biassed to engage the lower branch of the U-shaped tail member in the retracted unlocked position. In the closed position of the door, the latch releases the U-shaped tail member which, under the action of the spring, drives the main bolt to its locked position. The latch can be operated when the door is open to release the U-shaped tail member so the main bolt extends from the lock.

Abstract: An electronic lock mechanism includes a solenoid driven actuator and a cam actuator ring. The cam ring interfaces with both the latch of a door lock and the door lock key cylinder. With this interfacing, the door latch can be independently operated by one of the key cylinder, the cam actuator ring or a door lock push bar or paddle. With this independent operation, the ability to open a door can be maintained during power or lock mechanism failures for purpose of egress from the area secured by the door lock.

Abstract: A security locking device for releasably locking gates, doors and the like is made up of a bolt receiver and a locking bolt assembly, the locking bolt assembly including a slidable locking bolt which extends through a mounting tube for slidable movement between an extended locking position in the bolt receiver and a retracted, unlocked position removed from the receiver, and a locking wedge extends through slots in the mounting tube and locking bolt to retain the locking bolt in the locking position, the wedge in turn being locked securely in position by a locking member within the mounting tube. Mounting brackets are provided for tamper-proof attachment of the bolt receiver and locking bolt assembly to the respective members to be releasably locked.

Abstract: A hinged locking mechanism for use, in its most preferred embodiment, on an existing storage door hasp assembly, which hinged locking mechanism includes a case element hinged to a frame element having two frame pins for insertion into shank apertures defined by flange members of the existing hasp assembly. The case element includes a lock and a frame cavity for selectively concealing the frame element and the flange members.

Abstract: A lock comprised of a cylindrical body having a first passage extending axially through the body which passage is configured to enable a locking bar to be passed through the body, the bar having at least one orifice intermediate its extremities, the lock body having a second partial passageway extending from the side wall of the body at least into the first passageway and normal to the latter so that the orifice in the bar can be disposed in register with the second passageway. A cylindrical lock configured to fit slidably in the second passageway so that at least a portion of the lock may be thrust in the second passageway and through the bar orifice when the latter is disposed in register with the second passageway, when the lock may be secured by a key to be withdrawn from the outer end of the lock. This lock and bar may employed with external plates to secure adjacent members from movement relative to each other.

Abstract: A surface mounted slide bolt including a base, a strike, a bolt and a plug for locking the bolt in either extended or retracted positions and for disposing the bolt in position relative to the base for assembly and disassembly. The bolt includes tongues receivable in notches of L-shaped flanges of the base.

Abstract: A security shield device is provided in two embodiments. One embodiment includes a front cover, a rear base and a connector member connecting the front cover to the rear base. The front cover is mounted to a slidebolt latch for movement between a covered position shielding a padlock shackle coupled to a latch portion of a slidebolt latch and an uncovered position displaced from the latch portion of the slidebolt latch. The rear base mates with the latch portion of the slidebolt latch so as to attach the rear base to the slidebolt latch when the padlock shackle is coupled to the slidebolt latch. The connector member prevents movement of the front cover relative to the slidebolt latch away from the rear base which would expose the shackle of the padlock. The other embodiment includes a front cover, a rear base connected to the front cover, and apertures defined therein aligned with openings in stationary and movable latch portions of a slidebolt latch.

Abstract: A portable lock for doors, intended for use at hospitals, nursing homes, or other institutions, whose rooms do not have a lock when they are occupied by patients or other occupants. The lock has a unitary plate upon which is mounted a clamping mechanism for attachment to the door and a locking mechanism. The lock can be manually attached and removed from the door without the use of tools and is independent of the doorknob or handle assembly and the associated keeper. In one embodiment, a key is used to unlock the door, and in another embodiment, a padlock or combination lock, and/or a tamper proof seal can be used to lock the door.

Abstract: A hinged locking mechanism for use, in its most preferred embodiment, on an existing storage door hasp assembly, which hinged locking mechanism includes a case element hinged to a frame element having two frame pins for insertion into shank apertures defined by flange members of the existing hasp assembly. The case element includes a lock and a frame cavity for selectively concealing the frame element and the flange members.

Abstract: A door locking mechanism for use on the inside of a pair of outswinging doors mounted in the opening of a frame in which the doors are hinged at opposite edges and having free edges adjacent each other and free to be moved between the opening and closing of the doors. The mechanism comprises extended members U-shaped in cross section mounted on the doors. One end terminates substantially flush with the free edge of each door. A latch plate is mounted for sliding movement within one U-shaped member. The latch plate is provided with a handle extending through a slot in the U-shaped member which can be employed to move the latch plate. The latch plate is moved between a closed position wherein the latch plate extends past the free edges of the doors to overlap the second door and an open position where the plate is entirely within the width of the first door. A lever is provided to clamp or unclamp the latch plate in either the open or closed positions.

Abstract: A lock for doors, windows or the like includes a case for housing a control mechanism having an electric motor for actuating at least one control rod acting upon one or a plurality of locking members. To permit the lease or unlocking of the door, window or the like in case of failure of the electric motor, the electric motor is mounted on a movable bracket which is adapted to vertically move in the case and is actuated by a drive which is controlled manually, and/or electrically and/or electromechanically.

Abstract: A deadbolt-type doorlock particularly useful for public buildings such as schools which enables the locked or unlocked condition of the lock to be visually displayed and also enables locking of the slide bolt in either its door locking or door unlocking position. The deadbolt lock includes a lock housing having a movable bolt assembly therein. A blade is fastened to the bolt and forms a hole which aligns with one of two bores through the lock housing when the bolt is in the door locking and door unlocking positions. A conventional padlock assembly of the type having a separate locking loop is used which passes through both of the lock housing bores. Indicia on the padlock assembly lock housing can be provided on its two major face surfaces to designate the state of the lock.

Abstract: A locking device for use in connection with a separate padlock provides improved security against unauthorized tampering. The device is an enclosure for the padlock and a deadbolt, the deadbolt being slidable within the enclosure. The padlock is suspended from the deadbolt and engages a notch in the deadbolt to restrict longitudinal movement of the deadbolt while the deadbolt is extended from the enclosure and engaged within a keeper external of the enclosure.

Abstract: A sliding bolt locking structure has a housing which includes a back and right and left sides integrally formed with the back. A guide element is located on the housing between the sides. The guide element includes right and left side shackle holes for receiving the shackle of a lock. A member having right and left side panels is sized and shaped to fit in the housing between the respective sides of the housing. The left and right side panels of the member are spaced apart from one another a distance sufficient to allow positioning of a lock body between these respective side panels. The member includes a guide channel located in the side panels which fits over and slides on the guide element. The member slides on the guide element to position the shackle holes between the side panels of the member allowing for passing of a lock shackle through one of the lock shackle holes when the member is positioned with respect to the lock shackle hole. Bolt holes are formed in the respective sides of the housing.

Abstract: A non-contact automatic latch lock mainly composed of magnet coil, counter, micro-switch, counter, magnetic induction switch, lock mandrel locating plate, axial rod locating plate, brake lever and lock mandrel control axle, wherein by means of first magnet coil, second magnet coil, counter, micro-switch and magnetic induction switch, lock tongue being able to automatically draw back inside lock body for the opening of door and being able to automatically protrude beyond lock body for the closing of door.

Abstract: A multi-purpose lock bolt has a body which includes a bolt hole, a lock shackle hole and one or more mounting holes. Each of these are formed in the body and pass through the body. The lock shackle hole intersects with and traverses across the bolt hole as do the mounting holes. An elongated bolt is sized and shaped so as to fit into and slide in the bolt hole. The elongated bolt includes an alignment hole which is located in the elongated bolt in a direction transverse to the elongated axis of the elongated bolt. The bolt slides in the bolt hole in the body between an unlocked position and a locked position wherein in the locked position the alignment hole in the elongated bolt is aligned with the lock shackle hole in the body allowing a shackle of a lock to be passed through both the lock shackle hole of the body and the alignment hole in the elongated bolt to fix the elongated bolt with respect to the body in a locked position.

Abstract: A locking mechanism to secure a coin operated vending machine includes an elongate locking bar insertable into a housing of the vending machine to secure closed a door hingedly mounted to the housing. A pair of metal loops integral with the door, and a pair of cover plates integral with the housing, are aligned to simultaneously contain the locking bar when the door is closed. A key-operated lock cylinder, mounted in recessed fashion inside the housing, supports a latch for pivotal movement toward and away from a latching position, wherein the latch enters a slot formed in the locking bar to keep the locking bar in its locking position. A reinforcing plate, with a keyway and a larger opening to permit insertion of the locking bar, protects the locking mechanism against tampering to discourage unauthorized entry into the vending machine.

Abstract: A lock is provided for use on outdoor gate structures. The lock is of rugged, durable construction, intended to resist malfunction due to weather factors, and amenable to repair and change of keys. The lock is comprised of a sturdy metal housing having a bolt that moves between front and rear extremities of the housing in sliding engagement with front and rear apertured transverse walls. A padlock fits within the rear extremity of the housing, and its presence prevents rearward movement of the bolt to the opened state of the lock.

Abstract: A lock mechanism having a reversible right and left hand bolt includes a lock body. The body has a bolt passageway in which the bolt is mounted so as to slide back and forth in the body. A set screw fits into a groove on the bolt to retain the bolt in the body while allowing it to slide in the bolt passageway. A detent member fits into a notch on the bolt to lock the bolt to the body. A latch member fits into a notch on the detent member to hold the detent member in engagement with the bolt. A cylinder lock is attached to the detent member to rotate the detent member. When the detent member is rotated, the notch on the detent member rotates away from the latch member and allows the detent member to move away from the bolt to unlock the bolt. The bolt can be reversed in the bolt passageway by loosening the set screw, extracting the bolt from the bolt passageway, reversing the bolt, inserting the bolt back into the body and tightening the set screw.

Abstract: Lock assembly particularly suitable for use on rental storage spaces and the like. The assembly includes a lock bolt which is movable between extended and retracted positions and a slide plate which can move with the bolt. The slide plate is normally locked in a fixed position by a lock which is controlled by the owner of the rental space. The renter can lock the bolt to the slide plate to secure the space. The owner-controlled lock permits the owner to release the slide plate and retract that plate along with the bolt to gain access to the space with the renter's padlock in place. This lock also permits the owner to lock the bolt in the extended position so that the renter will no longer have access to the space even though he may remove his padlock.

Abstract: A deadlock includes a casing, a front knob and a rear knob respectively rotatably formed on the front and rear walls of the casing, and a slidable latch reciprocatively mounted in the casing as driven by either the front or rear knob, wherein the latch is formed a triangular locking tongue having two inclined surfaces so that the latch can be conveniently used in a bi-directional door when opening the door either outwards or inwards.

Abstract: A security bolt including a housing and a bolt rod slidably mounted on that housing for relative movement between operative and inoperative positions. The rod is cylindrical and has a section of reduced diameter between its ends so as to form two opposed shoulders. Key operated locking mechanism, having a rotatable barrel, is attached to the housing and a detent member is rotatably mounted on an end portion of that barrel. The detent member is rotatable to a position at which it engages one of the rod shoulders and thereby prevents movement of the rod out of the operative position. Rotation of the detent member is caused by rotation of the barrel, but a lost motion connection enables the barrel to rotate to a limited extent in either direction without causing corresponding rotation of the detent member. The locking mechanism can be removed from the housing through a rear side and releasable securing means controls that removal.

Abstract: A novel rack-pinion forms an outside operator of either a single latchbolt or a double latchbolt with the pinion rotating a latch operator of at least a single latchbolt to move the bolt between extended and retracted positions. The rack is shiftable between pinion engaging and nonengaging positions as determined by an inside operator control button, this being the sole means of shifting in the simplist, single latchbolt form. When it is a single latchbolt form, a lock may be added to the outside operator for also shifting the rack-pinion construction. In more complex, double latchbolt form, the second bolt, preferably a deadbolt, may have an outside operator formed by a lock or an inside operator formed by a turnpiece of both. With the outside lock of the second bolt construction, a yoke may connect that to the rack-pinion construction of the first latchbolt for shifting the rack by the second latchbolt outside lock.

Abstract: This invention provides a means for permitting the deadbolt lock, as used on many residential outside doors, to be quickly and conveniently locked, either from the inside or outside, without requiring the use of a key. This device then requires that the deadbolt lock be opened from the outside by a key in the conventional manner, or from the inside by a conventional finger lever. But to prevent accidental lock out of the resident, this invention further embodies an audible reminder to the user to make sure that the key is in his possession and available for re-entry purposes.

Abstract: A lock mechanism is shown having a latch bolt movable between retracted and extended positions, which latch bolt is operated by rotation of a lock cylinder at one side and a turn piece at the opposite side. A manually movable latching member operable from said opposite side of the lock mechanism is movable between a first position where operation of the latch bolt by the turn piece is prevented, and a second position where operation of the latch bolt by the turn piece is permitted. A combination lock operable from said opposite side of the lock mechanism may be used to lock the latching member in the first position thereof wherein operation of the latch bolt by the turn piece is prevented. With the combination lock set to the lock-open combination, movement of the latching member between said first and second position is permitted.

Abstract: A modular lock unit including a carrier frame and a heavy base plate and framework is positioned in a steel door jamb. A lock solenoid and an unlock solenoid are connected to opposite ends of a bolt cam slide extending through a vertical slot in a horizontally reciprocal bolt so that vertical movement of the slide effects camming movement of the bolt between an extended locking position and a retracted unlocking position. The slide includes a central slot oriented at approximately 45.degree. and having vertical deadlock end portions. A lock pin in the bolt extends through the central slot of the slide and enters the deadlock portion of the bolt when in either its extended or retracted position. Camming movement of the bolt is effected by the front and rear edges of the slide engageable with front and rear follower surfaces in the slot in the bolt.

Abstract: A deadbolt lock mechanism for a door comprises an elongated bolt, means for guiding the bolt in the door between extended and retracted positions, a spindle unit having a cam for selectively engaging a transverse arcuate depression in the bolt for securing the bolt in the extended position, and a handle for moving the bolt between the extended and retracted positions. The bolt can be six inches long and capable of a stroke of two inches for engaging a stud supporting a frame for the door. The spindle unit can include a lock cylinder of conventional construction at one side of the door, and a thumbturn at the opposite side of the door, and other similar combinations. The mechanism can replace existing hardware at a standard backset distance of two and three eighths inches.

Abstract: A door lock is provided for use with a building wall having a door opening formed by building framing members and in which a door is pivotally mounted and movable between a closed and an open position. The door lock has a locking bolt which is slidably mounted by a slide block to the building framing members on the inside of the wall. A key operated assembly accessible from the outside of the wall is operable to move the locking bolt between a locking position in which a portion of the bolt extends behind the door and thus into the path of the door swing, and a nonlocking position in which the bolt is retracted into the slide block and thus spaced downwardly from the path of the door swing. Since the slide block is mounted to the building framing member, typically a two by four wooden stud, the door lock utilizes the strength of the building itself rather than just the strength of the door or its jamb.

Abstract: A locking device including a housing adapted for mounting in one part of an enclosure and defining an engagement surface means; a bolt retained by the housing and adapted for reciprocating movement therein between open and latched positions, the bolt comprising a latch portion adapted when in the latched position to engage another part of the enclosure movable relative to the one part thereof; and a key operated cylinder lock retained by and movable with the bolt during reciprocating movement thereof, the lock being rotatable between locked and unlocked positions. Also included is a locking member retained by and movable both reciprocally and rotationally with the lock and arranged to be engaged with the engagement surface means and prevent reciprocating movement of the bolt with the lock in its locked position; and to be disengaged from the engagement surface means to allow reciprocating movement of the bolt with the lock in its unlocked position.