Abstract: A locking mechanism for a swinging door movable between a door closed position and a door open position and including a latch, the locking mechanism including a bolt housing, a movable bolt slidably mounted in the bolt housing, the movable bolt having a first end and second end, and a spring mounted in the bolt housing between the bolt second end and a portion of the bolt housing and biasing the bolt towards the bolt first end. The locking mechanism also includes a locking plate having a hole therein, the locking plate being slidably mounted in the bolt housing and movable between a bolt unlocked position where the locking plate hole is aligned with the bolt so that the bolt can move freely towards the bolt second end, and a bolt locked position where the locking plate hole is not aligned with the bolt and where the bolt movement toward the bolt second end is limited.

Abstract: A handle device includes: a housing, a handle unit including a base portion and a handle portion. The base portion includes a first track and is pivotably connected to the housing. The handle portion includes a slider movable along the first track and a retractable first locking unit connected to a first side portion of the housing. The first locking unit is positioned at least partially within the first track in a locking position and positioned outside of the first track in an unlocking position.

Abstract: The present invention relates to a locking mechanism for arrangement on a door, the locking mechanism (1) comprising an actuator (10), arranged to be linearly movable along a first axis (Y). The locking mechanism further comprises a locking clamp (20) for engaging a locking element (50) on a door frame. The locking clamp (20) may be flexibly coupled to the actuator (10) so that, when the actuator (10) is moved along the first axis, the locking clamp (20) may move linearly along the first axis (Y) and rotate around a first rotational axis (A) to admit engagement to the locking element. The present invention further relates to a locking system (100) comprising such locking mechanism (1).

Abstract: The Lift Stop device includes an aluminum rod that is attached to a doorstop that is secured to a door for the purpose of lifting a doorstop from its down position to an up position.

Abstract: The present invention discloses a lock mechanism, comprising a latch mechanism that includes a remote latch actuator that is positioned remotely from a remote latch assembly and a keeper assembly, with the latch mechanism housed and accommodated within an enclosure.

Abstract: A locking device includes a locking pair having a bolt to engage with a retainer and a detection linkage. The bolt is movably mounted against a spring which tends to return the bolt to a position spaced apart from the retainer. The detection linkage is also movably mounted between an unlocked position where the detection linkage allows unlocking of the bolt and the retainer. In particular, a portion of the bolt then engages with the detection linkage by means of a detecting part of the detection linkage to block a possible return of the detection linkage towards a locked position where the detection linkage engages with the portion of the bolt so as to oppose to unlocking of the bolt. The detecting part irreversibly drives the detection linkage to its unlocked position even when one locking pair is unlocked.

Abstract: A door structure for vehicles has a door outer lining, a door inner lining and a locking/closing mechanism with actuating elements on the outer side and optionally on the inner side of the door. The locking/closing mechanism is connected to the door release via at least one transmission element (8) between the door outer lining and the door inner lining. A locking element (1) between the door outer lining and the door inner lining acts on the transmission element (8) and inhibits the door release in the event of a side impact, The locking element (1) inhibits the operation of the transmission element (8) by blocking it as a result of pivoting of the locking element (1) in the event of a relative movement of the door outer lining in the direction of the door inner lining.

Abstract: A entry and exit assist system for a vehicle has a mounting slot formed within a door of the vehicle. A wheelchair has a set of wheels and a seat coupled to the set of wheels, wherein the set of wheels are one of detachable from or foldable under the wheelchair. A supporting connector is coupled to the wheelchair. The supporting connector slides into and engages the mounting slot holding the wheelchair above a ground area when the set of wheels are one of detached from or folded under the wheelchair. A seatback is slideably mounted on a track in the vehicle. Closing the door with the supporting connector engaging the mounting slot and holding the wheelchair above a ground area positions the wheelchair in the vehicle. The seatback provides back support for a user of the wheelchair.

Abstract: A new latch device for a screen door includes inside and outside handle assemblies. Each assembly has a lever adapted to be pivotably connected, respectively, to the inboard and outboard side of the screen door. The inboard lever has a paddle at one end and a stem at the other. The stem extends through an opening formed in the screen door. When the paddle is depressed, the stem moves along a cam surface formed in the outboard lever. This causes the outboard lever to disengage the fastener on the solid door to disconnect the solid door from the screen door. Additionally, when the screen door is in its latched position and not connected to the solid door, depressing the paddle causes the latching end of the outboard lever to disengage the doorjamb so that the screen door can be moved independently from its latched position into its open position.

Abstract: A mortise lock for mounting in a door. The lock includes a bolt movable along a first axis between an extended position and a retracted position. Included are means for biasing the bolt to its extended position. The lock further includes a driven member which is mounted for rotation about a second axis generally perpendicular to the first axis. As the driven member is made to rotate about the second axis, it engages the bolt and urges it, overcoming the bias, to its second position. A drive member is mounted for rotation about a third axis, generally parallel to the second axis.

Abstract: A structure for electrical locks comprises two rotational members, a latching assembly, and a controlling means. The two rotational members are respectively secured to two handles of a door. The latching assembly includes a cartridge, a sliding element, and a dividing rod. The dividing rod is fitted in the cartridge to define two lateral zones respectively corresponding to two recesses of the rotational members. The sliding member is slidably fitted in one of the lateral zones of the cartridge. The controlling means includes a pushing assembly and a solenoid. When the solenoid is de-energized, the pushing assembly can be moved forward to lock a respective handle. When the solenoid is energized, the pushing assembly can be moved back to free the respective handle. The structure can be easily applied in a door where one handle can be freely operated while the other handle can be electro-selectively operated.

Abstract: A lock device includes a casing formed in a housing for rotatably receiving a rotary member which has an actuating finger and which is coupled to a handle with a driving shank, and a spring biasing device attached to the housing and engaged with the actuating finger of the rotary member for biasing the handle back to an original position and for biasing the actuating finger of the rotary member back to an original position when the handle is released, the spring biasing device is locked to the housing with a fastener to disengage the follower from the actuating finger of the rotary member when a spring biasing member is engaged between the handle and the housing to bias the handle back to an original position.

Abstract: To prevent intruders from forcing a deadbolt out of a locking position, the deadbolt has a sleeve defining inside and outside slots. Each of these slots has a horizontal section and a locked position vertical section. Cross members extend through the slots and are placed in the locked position vertical sections when the deadbolt is in the locked position. This prevents the deadbolt from being forcibly unlocked.

Abstract: A cylindrical lever lock using a lever as a handle for convenient use by even the disabled and the old is disclosed. Since plate shafts, spring holders and spring cage covers constituting the cylindrical lever lock are made of general metal plates, the material cost and the prime cost may be reduced. In addition, the spring holders are connected through double engagements with spring cages and the spring cage covers. Therefore, deformation of parts or drooping of levers may be prevented in spite of an excessive force applied. Furthermore, assembling and disassembling of the parts can be quickly and easily performed by achieving adjustment of intervals of the parts according to thickness of a door using a female screw of an outer attachment plate and a male screw of a boy assembly.

Abstract: A lock device includes a casing formed in a housing for rotatably receiving a rotary member which has an actuating finger and which is coupled to a handle with a driving shank, and a spring biasing device attached to the housing and engaged with the actuating finger of the rotary member for biasing the handle back to an original position and for biasing the actuating finger of the rotary member back to an original position when the handle is released, the spring biasing device is locked to the housing with a fastener to disengage the follower from the actuating finger of the rotary member when a spring biasing member is engaged between the handle and the housing to bias the handle back to an original position.

Abstract: A deadbolt device for a door is disclosed that has a linkage assembly enclosed within a handle. The linkage assembly extends from a first end to a second end and is moveable from a locked position to an unlocked position. A lock housing extends through the door and includes a guide channel that extends from an interior side of the lock housing to an exterior side of the lock housing. A locking member, at least a portion of which is in the guide channel, is operatively connected to the linkage assembly and is moveable from a locked position to an unlocked position, which correspond to those of the linkage assembly. A biasing mechanism is operatively connected to the locking member and biases the locking member to its locked position. A dogging member is moveably connected to the lock housing such that the dogging member can move from an undogged to a dogged position.

Abstract: A bolt mechanism comprising a backing plate adapted to be mounted on a complementary surface of a flat panel, a bolt assembly housing attached to the backing plate, a sliding bolt assembly carried on the bolt assembly housing one end of which has means adapted to engage and latch to a striker, a spring on said housing for keeping the end of the bolt extending out of the bolt assembly housing, the backing plate having means adapted to enable attachment to and detachment from an actuator housing assembly having complementary means adapted to enable attachment and detachment. An actuator housing assembly comprising an actuator housing having an opening therein, a movable actuator member received in the opening, the actuator member having a front surface and a rear surface and being digitally movable in said opening, and a hammer extending from the rear surface of said movable actuator member.

Abstract: A latch locking apparatus for a glass door has a body, an operating member, a transmitting device and a lock device. The body has a casing with a mounting hole and a lower mounting post. The operating member is mounted in the casing and has a pulling arm, a mounting post and a first spring. The mounting post is formed on the pulling arm. The transmitting device is mounted in the casing and has a latch plate, a transmitting lever and a pulling bar. The latch plate is mounted in the casing and has a second spring. The transmitting lever is connected to the latch plate. The pulling bar is connected to the transmitting lever and has a third spring. The lock device is connected to the body and the operating member.

Abstract: An storage locking apparatus including a case attached to an end edge of the storage, a locking member slidably supported by the case for engaging with and disengaging from the supporting member, a first urging member for always urging the locking member in a direction of the supporting member, an operating handle pivotably supported axially by the case for unlocking the storage by being pivoted from a side of the supporting member to a side of the storage, and lever mechanisms for sliding the locking member against the first urging member by pivoting the operating handle in which the supporting member dispenses with a containing portion in a recessed shape as in a prior art by providing an operating space between the supporting member and the operating handle.

Abstract: The present invention relates to a latch assembly insert, which includes a housing member, a bolt, a latch member, and a transfer cam. The latch assembly insert is designed so that it can be snap-fit into a cutout or similar hole, and used to hold shut a door, window, or similar member.

Abstract: A convertible door latch assembly convertible between a non-locking configuration and a locking configuration. The convertible door latch assembly including a bolt housing, a bolt slidably engaging the bolt housing and having a first slot and a second slot, a drawbar slidably engaging the first slot and the bolt housing, a dead latch stop being engagable in the first slot to hold the drawbar in the first slot when the convertible door latch assembly is in the locking configuration, a plunger being slidably engagable in the second slot and being movable between an extended position and a retracted position when the convertible door latch assembly is in the locking configuration, and a pull slidably positionable within the first slot and moveable relative to the bolt when the convertible door latch is in the non-locking configuration.

Abstract: A door latching mechanism includes a slide housed within a frame adapted for sliding motion of the slide within the frame and a spindle rotatably mounted to the frame and adapted to move the slide between a retracted and an extended position. A void is defined between an exterior surface of the frame and an interior surface of a cover housing the frame and the slide. An insert includes wings, which extend into the void and are positioned on opposite sides of the slide from each other.

Abstract: A lock component comprises a mounting plate (50). An intermediate resilient element (56) is mounted on the plate and has a peg (59) engaging a recess (53) on the plate to prevent rotation of the intermediate element. The intermediate element presents a collar (60) and projection (61) having an outer periphery configured to snugly engage an aperture (64) in an arm (62) which carries a lockable element (68). A connecting element (74) has a shaft (76) passing through a central aperture in the intermediate element (56), thus also extending through the aperture (64) in the arm (62). The shaft is connected to an aperture (55) formed in the mounting plate (50). The lockable element (68) has at least one degree of freedom of movement, which may be a rotational movement about the axis of the connecting element (74), or which may be a lateral movement. When the lockable element (68) is engaged within the locking arrangement, the intermediate element (56) is deformed.

Abstract: What is disclosed is a latch comprising a housing and a pawl that is held in a normal position relative to the housing and capable of extending from the normal position and away from the latch housing along a travel path to maintain connection between the latch and a strike. This improved latch is a locking mechanism that reacts to deflections and bowing in overhead storage compartment bins found in airplanes to maintain positive engagement between the compartment door and bin. In addition, the latch is compatible with existing strikes used in storage compartment bins, and thus does not require existing strikes to be modified or changed for the latch to preserve engagement between the compartment door and bin.

Abstract: 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 concentrations. The plunger has a complimentary D-shaped cross-section for sliding movement within the tunnel between extended and retracted positions to latch and unlatch the door.

Abstract: A locking device for a door, window, or the like, has a main lock casing, at least one additional lock casing and at least one pushrod connecting the additional lock casing with the main lock casing. The additional lock casing has a retractable latch bolt, which can be freely pushed out of the latch position into the additional lock casing, which can be pushed into its locking position by means of a spring and/or a gear. The latch bolt on its side located opposite a leading incline and in the area of the latch end has a protrusion, on which a latch restoring lever acts, and the latch restoring lever has a first catch, by means of which a pushrod is taken along in the, and; one direction, a second catch, by means of which it is taken along by the pushrod in the other.

Abstract: The lower section of the L-shaped truck/camper security bar inserts into an existing load-leveling type trailer hitch and can be locked into place with an existing trailer hitch lock. The upper section extends vertically along the rear of the vehicle to block the pulling down action that would open the tailgate and to block the lifting up action that would open the camper top rear window.

Abstract: An espagnolette or espagnolette-lock for a door or the like, having a control mechanism including, on the one hand, a springy mechanism for automatically restoring a operating rod into locking position and, on the other hand, a locking device capable of maintaining this operating rod in its unlocked position upon opening of the leaf.The locking device consists of a lever fitted in the casing, about a spindle perpendicular to the plane of the latter, so as to be capable of tilting between an inactive position and an active position in which it co-operates with a stop directly or indirectly made integral with the operating rod, in order to impede the latter from moving under the action of the springy means, the lever being extended, beyond its axis of pivoting, by a control pawl on which are capable of acting an unlocking mechanism in the shape of an actuator directly or indirectly integral with a spring-bolt.

Abstract: A snowboard binding includes a base plate for supporting a universal boot plate. A pair of locking slots are arranged on the sides of the universal boot plate. A fixed locking latch is attached to the base plate on one edge thereof for engaging one of the locking slots. A latch assembly is attached to the base plate on an opposite edge thereof. A slidable locking latch in the latch assembly is operable for engaging the other locking slot on the universal boot plate. The slidable locking latch is actuated by a cam member with an arcuate cam slot having a center eccentric to an axle of the cam member. The slidable locking latch is connected to the cam slot by a pin. When the cam member is rotated by a lever attached to the axle, the cam slot affects linear motion in the slidable locking latch, which is caused to extend or retract for respectively locking or releasing the universal boot plate.

Abstract: A safety door lock comprises follower member turned with an inside door knob or an outside door knob to move a latch bolt between the locking position and the unlocking position, and a clutch controlled by a push block between a first position where the outside door knob is coupled to the follower member and a second position where the outside door knob is disconnected from the follower member.

Abstract: A locking mechanism for locking a first member that is inserted into a second member into a first member, such as to secure an inductive coupler in a charge port while it is used to charge an electric vehicle. The locking mechanism prevents premature or malicious removal of the coupler before charging has been completed. The locking mechanism has logic that allows a user to set the lock in the charge port prior to insertion of the coupler. The locking mechanism has an actuator coupled to a rotatable link that is rotated thereby. A first pin is coupled to the rotatable link and a hole disposed in the first member that mates with the first pin to lock the inductive coupler in the charge port. A spring loaded release mechanism coupled to the first pin that permits the first pin to slide into the hole. Motion of the cable and the release mechanism releases and locks the first pin in the hole, or retracts the first pin from the hole, thus locking and unlocking the locking mechanism.

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: A manually actuated pin-type door locking assembly is shown. The pin-type locking assembly includes a housing having a locking pin confined within a locking cavity and movable between an unlocked position and a locked position. A rotary shaft actuator is rotatably mounted to the housing and is connected to the locking pin via a swing arm. The swing arm is spring biased. By rotating the rotary actuator shaft back and forth, the locking pin is moved between the unlocked position and a locked position where the locking pin effectively locks the door of a vehicle to an adjacent frame structure.

Abstract: A locking mechanism which provides a number of resistance points, all of which function to impede the opening of a door located on the chassis of a lottery dispensing machine or any other enclosure that must be secured. The locking mechanism includes a rotating cam which sets the lock in motion. Rotation of the cam is translated into reciprocating motion of a number of bolts which move into a locked position. Once the bolts are in a fully locked position, movement of the door is impeded. If two bolts are used, they face in opposite directions. If more than two bolts are used, they all face in different directions. This makes the lock impossible to jimmy. Further, to successfully pry open the lock would require an effort great enough to cause substantial structural damage to the enclosure itself. A cam extension is also provided which provides extra resistance when the locking mechanism is in a closed position.

Abstract: A multifunction hinged door lock with independently biased lever assemblies positioned one on each side of a door that drive the latch bolt of a latchbolt subassembly through the medium of a drive slide positioned for slidable movement in the sub assembly. The lever assemblies include at least one lock actuator such as a keyed cylinder to optionally displace at least one locking device between locked and unlocked configurations.The subassembly may optionally include an extended length bolt, a detent to restrain the bolt from fully extending prior to latching and optionally also include a detent to restrain the bolt from fully displacing prior to locking. The subassembly may optionally include an extended length bolt with a latching lever to assist initial latching.The subassembly may also optionally include a facility whereby inward displacement of the bolt during latching drives the locking device to the unlocked position if it were actuated to the locked position prior to latching.

Abstract: A lock assembly having a housing and a plunger assembly guided for movement relative to the housing between a latched position and an unlatched position with the plunger assembly and housing in assembled relationship. A tab is provided on one of the plunger assembly and housing and is repositionable from an assembly position into a holding position. With the tab in the assembly position, the plunger assembly and housing can be placed in and taken out of, their assembled relationship. In the holding position, the tab maintains the plunger assembly and housing in assembled relationship.

Abstract: A latch bolt actuating mechanism for a door having a latch bolt mounted on its inner surface adjacent a top edge thereof in position to engage and cooperate with a fixed keeper above the door includes an elongated strap having its top end connected to the latch bolt for vertical movement therewith and its bottom end connected to an actuator pivotally mounted in a rigid housing on the door surface by a removable shaft extending through the housing. The actuator is biased to the closed or latched position and a lever or strike plate extends from the housing in position to be pivoted about the shaft toward and away from the door inner surface with the lever being operable upon movement toward the inner surface to move said strap and the latch bolt connected thereto downwardly to release the latch bolt from the keeper. The rigid housing provides a stop for engaging said lever to limit the pivotal movement of said actuator and the downward movement of the strap.

Abstract: A lock mechanism for a dead bolt assembly. The lock assembly includes a conventional key actuated cylinder for mounting outside the door for extending and retracting the dead botl between a locked and an unlocked position. An exterior thumb turn assembly is accessible from the exterior of the door and includes a rotatable actuator arm which is connected to a pushing link for pushing the dead bolt from its retracted to its extended position. The exterior thumb turn, however, does not permit the retraction of the dead bolt, but only permits its extension.

Abstract: An automatic dead bolt lock has a main bolt member and an auxiliary bolt member supported on the main bolt member so as to be reciprocally movable relative thereto. Both the main and auxiliary bolt members will be dead locked when the lock is in the dead locked condition. In the armed condition the main bolt member is partly extended and the auxiliary bolt member extends from the end of the main bolt member.

Abstract: A lockset for a door comprising a latch bolt assembly including a bolt movable between a partially extended latching position, a fully extending dead bolt position, and a retracted position. A spring biases the bolt toward its dead bolt position and a spindle extends through the latch assembly. The spindle is connected to the bolt to move the bolt between its positions upon rotation of the spindle. A mechanism is provided for holding the latch bolt in its latching position when the door is open and a mechanism responsive to the closing of the door is provided to move the latch bolt automatically into its dead bolt position.

Abstract: The present invention relates to a shipping rack including a dunnage bar locking mechanism for removably securing a dunnage bar between the end walls of the shipping rack. The mechanism comprises a housing secured to one end wall. A piston element is mounted within the housing for reciprocal movement. The piston element is removably secured to one end of a dunnage bar. A handle is pivotally mounted to the housing. The handle has an open position to move the piston element toward the end of the dunnage bar and a closed position to move the piston element away from the end of the dunnage bar. A means interconnects the handle and the piston element for allowing relative movement between the piston element and handle when the handle is in the closed position as a consequence of the dunnage bar being impacted by an external force.

Abstract: The present invention is a dunnage bar locking mechanism for removably securing a dunnage bar between the end walls of a shipping rack. The mechanism comprises a housing secured to an end wall. A piston element is mounted within the housing for reciprocal movement. The piston element is removably secured to one end of the dunnage bar. A handle is pivotally mounted to the housing. The handle has an open position to move the piston element toward the end of the dunnage bar and a closed position to move the piston element away from the end of the dunnage bar. A means interconnects the handle and the piston element for allowing relative movement between the piston element and handle when the handle is in the closed position as a consequence of the dunnage bar being impacted by an external force.

Abstract: The present invention is directed to an improved door latch assembly having a rotatable member which is transparent or translucent and to which a door knob structure is coupled. The member is rotatably mounted between a pair of support plates, and the member has a roller on the outer periphery thereof. A number of pivotally mounted links on one of the support plates operates to move a latch bolt into its retracted position when the roller moves in either direction under the influence of the rotation of the member by turning a door knob element of the door structure. The various links cooperate with each other to cause immediate movement of the latch bolt upon rotation of the member, yet the links are not visible from a position exteriorly of the door in which the latch assembly is mounted.

Abstract: A door-bolt assembly for a door set has a stud having a pair of arms which engage respective eccentric rods coupling the doorknobs together so that one of these arms is effective to retract the door bolt in one sense of rotation of the doorknobs while the other arm is rendered ineffective and vice versa.

Abstract: Latch mechanisms for latching two bodies in both tension and shear. A longitudinally extending latching bolt is associated with a latching assembly having an overcenter link mechanism controlled by a lever. The overcenter link mechanism includes a slot cooperating with a pin to provide two effective lengths to the fully extended linkage. A laterally extending notch provides a shoulder intermediate the ends of the slot to receive the pin. A keeper is slidably associated with a keeper assembly to engage a recess in the longitudinally extending bolt to prevent its withdrawal from the keeper assembly. A locking surface in the recess engages the keeper. A slide member may extend over the recess so that the keeper is selectively prevented from engaging the recess for purposes of retracting the bolt.

Abstract: An auxiliary lock has a base, an extending shell and a linking arm that, through holes, slots and projections disposed thereon connect adjustably together for lengthening or shortening the assembly while maintaining constant the length of the dead bolt exposed out of a cylinder into a faceplate.

Abstract: A door latch bolt spring-biased to projected position and retracted by a lever or other unbalanced handle is provided with a blocker plate loosely mounted on the rear face of the bolt and held in nonblocking position by a fusible pin or other heat-sensitive element. In case of fire, when elevated temperature may weaken the biasing spring and allow the unbalanced handle to exert retracting force on the latch, the heat-sensitive element releases the blocker plate and allows it to drop to an operative position where it will move against a stop to block retraction of the bolt. The plate is movable in either direction on the bolt so as to be operative on either hand or door. The tailpiece of the latch bolt carries means for mounting a reaction plate for the biasing spring and the blocker plate is loosely received between such plate and the rear face of the latch bolt. The reaction plate can be omitted when the blocker is not used, but can be supplied at any stage of manufacture or in the field when desired.

Abstract: A deadbolt lock mechanism for a door comprises a lock cylinder secured to a lock housing and having a movable locking tab connected thereto, a lock bolt slidably mounted within a channel in the housing, a disk rotatably mounted within the housing having a transverse pin extending therefrom, and a lever having an opening therein within which a portion of the transverse pin is disposed, the lever being pivotally mounted at one end to the housing and connected at the other end to the lock bolt. Upon rotation of the locking tab, the disk is rotated through actuation of the pin, and the lever is pivoted by the transverse pin engaging the sides of the opening within the lever to slide the lock bolt into an extended locked position or a retracted unlocked position, the lock bolt being deadlocked in position by the detent feature created by the geometrical relationship between the transverse pin and the sides of the opening within the lever.

Abstract: A hatch assembly has an annular seat, a hatch cover and a plurality of latching units. Each latching unit has a slidably supported locking bolt movable generally radially inwardly with respect to the annular seat into a hatch cover locking position and generally radially outwardly into a hatch cover releasing position. In the hatch cover locking position at least one length portion of the locking bolt extends over the hatch cover for maintaining the hatch cover on the annular seat. Each latching unit further has a rotary crankshaft, an operating handle torque-transmittingly connected to the crankshaft for applying a locking torque and an opposite, releasing torque thereto; and a coupling mechanism for connecting the crankshaft with the locking bolt and for converting rotary motion of the crankshaft to linear motion of the locking bolt. The coupling mechanism has a spring for transmitting the locking torque from the crankshaft as a radially inwardly oriented resilient force to the locking bolt.

Abstract: This invention relates to an auxiliary lock which has a base, a rotating shell, and an extending shell that, through the hooks, grooves, and notches disposed thereon, can connect selectively together in a short or long position and is therefore able to change the distance between a rotating member and the faceplate of the lock via adjustment of the rotating shell.