Abstract: The tank fill locking system includes a special coupling adapted to fit upon the top of the tank fill pipe within the manhole. A flat top cap is removably attached to the coupling and includes aligned lock receiving openings when the handle is moved to the closed position. An upper, first, hardened steel plate overfits the fill cap within the manhole and is provided with suitable brackets to engage both the handle and the locks. Preferably, straight shackle locks are employed. A second or inner locking plate secures within the coupling below the flat cap and is also provided with a lock to lock the second plate within the coupling and thereby prevent access to the tank through the fill pipe.

Abstract: A latch for securing a panel within an overhead opening includes a base portion which is secured to the panel. A cam is pivotally mounted to the base and is biased such that upon insertion of the panel into the opening a foot on the cam snaps over adjoining structure, pinching the structure against the base and thereby securing the panel. A trigger mechanism pivotally mounts to the cam and is configured to lock the cam in an unlatched position upon desired removal of the panel.

Abstract: A security lock for attachment to the inside of a door which is secure, pick-proof, adaptable to any door-lock and door-frame combination and is easily locked and unlocked by the user. The lock is characterized by having a hook end to engage the striker plate depression and a slideable lock piece that engages the shank of the lock at adjustable positions to lock upon its serrated or toothed edge against the door and frame at their juncture and thus prevent the door from being swung inwardly.

Abstract: A latch bolt for locking sliding windows. The bolt includes a housing and a spring biased handle formed with a pivotal stump. The pivotal stump is seated within the housing, the handle being locked against any axial displacement. The housing is provided with a channel in which at least one insert is disposed for locking the handle against axial displacement. A spring is disposed interior of the channel and between the assembled pivot stump and housing.

Abstract: A fuel tank filler door mounts a striker which is engageable by a latch member of a lock on the body to lock the filler door against movement to open position. The lock is released by a shiftable cable controlled by a power actuator or a mechanical actuator within the vehicle trunk.

Abstract: An adapter assembly is used in combination with a door of the type having an elongated opening to receive a bolt extending from a lock which is mounted in a door coupled to the frame. The adapter assembly comprises an elongated strike plate, mounting means for coupling the strike plate to the frame in one of two inverted positions and an adjustable cover. The strike plate has an elongated, generally rectangular aperture longitudinally offset toward one end of the strike plate. The adjustable cover is coupled to the strike plate for closing at least a portion of the strike plate aperture and the opening in the door frame. This provides a simple mechanism for customizing the opening in the door frame to any one of a wide variety of different lock and knobset arrangements by varying the size and location of the opening.

Abstract: A door latch mechanism for controllably securing a door, the latch mechanism of the type having a spindle and operating handles, comprises a fusible connecting member rigidly attaching the handle and spindle at room temperature, the fusible connecting member melting at elevated temperatures to permit relative rotation of the handle and spindle. The handle is mounted using a connecting member which is attached to the latch trim using a screwless connection. This is particularly applicable to latches using lever handles in that a positive positioning mechanism holds the handles at their selected positions, regardless of wear and age.

Abstract: An adjustable strike incorporates a bracket defining a slide, a striker plate including a latch-engaging section and an integral slider slidably positioned in the slide and an adjusting screw recessed into the bracket underneath the slide, said screw having a head accessible at an edge of the bracket and a thread threadedly engaging the slider. Projections are provided at the opposite sides of the slide which overhang the edge margins of the slider to slidably retain the slider in the slide. The bracket and screw are simple molded plastic parts and the striker plate is a simple formed metal part. All three parts can be assembled quickly without any tools by placing the screw in the bracket recess and engaging an edge of the striker plate slider under the projections at one side of the slide and pressing the slider down into the slide whereupon its opposite side edge becomes engaged under the projections at the opposite side of the slide.

Abstract: A lever-type handle for operating a racking mechanism and providing an interlock for a cabinet enclosing electrical equipment. The handle is comprised of two sections which are linked together by a throughbolt. A cover assembly retaining and enclosing a portion of the handle is provided with an opening oriented so that the bolt is only accessible when the handle is in an "on," or energized, position. By removing the through bolt the handle sections are disengaged so that one portion can be moved to a non-locking position and access gained to the cabinet interior.

Abstract: This application discloses a latch assembly for a fence gate or the like comprising a two piece relatively movable first assembly mountable on one wall of the fence and a second assembly having a flexible body fastened at one end to the gate and having a loop at the other end which is positioned over both pieces of the first assembly and is locked to the first assembly by a gravity forced movement of one of the pieces of said first assembly.

Abstract: A flush bolt mechanism adapted to be mounted at the vertical edge of the inactive door of a pair of hinged doors. Means are provided to prevent damage to the mechanism due to misalignment of the bolt and the strike plate. All translational motion of the mechanism substantially takes place along a single axis except for the motion of activation.

Abstract: A sash lock for sliding windows as for example in vehicles such as buses is provided. The lock has a minimum of moving parts (two), and great strength. The lock comprises a lock body having a projecting latch plate which is adapted to engage a slot in a track adjacent a sliding window. The latch plate has an upper unitary lip which is engaged by downwardly projecting members on the latch handle, and there is an associated spring normally urging the latch plate toward the slotted track. Pivotal movement of the handle, in either direction, causes the latch plate to be released from the slotted track so that the latch and its associated window may readily be moved along the track.

Abstract: A door securing apparatus, particularly for securing a garage door, including a first member for securing to a structural member of the garage, a second member for selectively engaging a portion of the garage door, and a bar connected between the first and second members for bracing the second member against the garage door portion. A cable assembly is provided for conveniently selectively moving the apparatus between a locked position wherein the second member engages and is braced against the garage door portion and an unlocked position wherein the second member is spaced from the door to permit unobstructed opening and closing of same.

Abstract: A high security lock and a high security key for locking and unlocking said lock. The lock has a resilient O-ring seated in the bore of a hollow plunger and a retainer sleeve fixed in the bore of the hollow plunger and bearing against the rear surface of the O-ring. A center pin with an enlarged forward head extends rearwardly through the bore of the plunger, the O-ring gripping the periphery of the center pin and yieldably resisting center pin reciprocal movement within the plunger bore.The key has elongated outer expanding fingers and an inner coaxially arranged center pin. When the key is fully inserted into the lock and the key handle is operated, the expanding fingers are initially radially expanded to grip the inner surface of the lock plunger bore, and are then longitudinally retracted to draw the plunger rearwardly. Simultaneously, the key center pin is prevented from retracting and holds the lock center pin stationary permitting the lock to unlock.

Abstract: A door latch for latching a swingably mounted door. The latch includes a striker assembly which is operable in a dual capacity. First, the striker assembly is pivotally operable for accomplishing the unlatching action or is arcuately swung in the act of being withdrawn from the keeper socket, thus unlatching the door latch. Second, at least a portion of the striker assembly is rectilinearly operable for accomplishing the latching action as it slidably engages the lip of the keeper socket and is subsequently thrust into the keeper socket as the door continues to be fully closed thus latching the door latch. A shaft extends through the mainbody of the striker for facilitating the unlatchable swinging action thereof and which carries handle or knob structure at either end thereof to further facilitate unlatching and opening the door.

Abstract: A rotary latch mechanism for engaging a latch post, for example to latch a vehicle door to its frame. The latch mechanism comprises a rotating cam having a recess to engage or release the latch post. A torsion spring or the like biases the cam for rotation toward the position in which it releases the latch post. A latch bar sliding perpendicular to the plane of rotation of the cam is biased for slidably engaging an abutment on the cam to latch the cam in its engaged position. A handle or other release is provided to retract the latch bar, freeing the cam for rotation to its disengaged position. The mechanism is quite simple and requires only a few moving parts, yet it provides the same functions as other more complex latch mechanisms.

Abstract: A lock is disclosed for a carrying case of an emergency respirator which case includes a bottom container part and a cover member held to the container part. At least one strap member is connected to the container part and the cover member to hold them together. The strap includes two strap ends which are held together by a toggle clamp which includes a holding member connected to one strap end which pivotally carries a lever, and a hook end of the other strap end which is engaged with the lever. A sealing piece having a recess is provided which slides over an end of the lever to hold the lever in a closed position. The hook end of the strap includes an opening which receives a protrusion extending from a portion of the sealing piece.

Abstract: The invention comprises a latching and unlatching device for use on a door, or bulkhead, or the like, which device has a blocking plate for internally obstructing the latch to prevent its retraction, thereby to prevent the opening of the door. The blocking plate is internally secured in place, in an intermediate slidable position, where it does not obstruct the latch, by a low melting point cover. In the presence of excessive heat, as on the occurence of fire, the cover melts; this allows the blocking plate to slide to another, operative position in which it prevents the retraction of the latch and, consequently, the unlatching of the device. The method comprises the steps to be undertaken to modify an off-the-shelf latching and unlatching device to insure that it will be held securely latched in the presence of fire or excessive heat, and the kit sets forth the structure elements required for the aforesaid modification of off-the-shelf, latching and unlatching devices.

Abstract: A locking device for a pivoting window includes a link which is completely embeddable inside the body of the lock mounted on a frame and a strap affixed to the window, the link being set in motion by a combination of sliding and pivoting movements transmitted from the translation motion of an operating knob, parallel to the body of the lock and obtained with pawns attached to the link evolving inside knob-holes of the strap and the body of the lock. This low-crowding device enables locking of the window with constant compression of the watertightness joint of the window.

Abstract: An adjustable lock striker bolt assembly includes an anchor plate which is manually snap assembled to a retention bracket by an operator without tools and with limited access to the inside of the lock pillar. The retention bracket includes a pair of spaced laterally extending retention flanges, each including a retention slot. The anchor plate includes a thickened central body portion and a pair of legs extending oppositely therefrom. To assemble the anchor plate to the bracket, one leg of the anchor plate is inserted through the slot of one flange until the central body portion contains the one flange. This locates the edge portion of the other leg in engagement with the other flange. Manual pressure of the anchor plate snaps the edge portion of the other leg into the slot of the other flange.