Abstract: An auxiliary locking device to be employed in a door knob includes a lock body that has at least two parallel through-bores extending through the body. A first retaining bolt is slidably received in one of the through-bores and includes two ends extending out from the lock body. A second retaining bolt is slidably received in the other one of the through bore and has an end portion extending from the lock body. The end portion of the second bolt has a plate member with an opening around the periphery of which a wall body is mounted. The wall body confines a through-hole that generally has a cross-section equal to and in communication with the opening.

Abstract: A strike mechanism for a door lock comprising a recessed strike plate (9) which in use is fitted into a door jamb to receive a latch bolt (14) and a strike (10) which is pivotal between a first position in which the bolt (14) is held within the recess and the door is locked shut and a second position in which the bolt (14) is released so the door may be opened. The strike (10) is lockable in the first position by pins (19, 20, 21) which are remotely operable by a solenoid (26) to extend or retract across adjoining surfaces of the strike (10) and plate (9) and prevent relative movement therebetween.

Abstract: A check rail lock with a handle pivot shaft secured for pivotal movement with respect to the housing and a cam which pivots with the shaft between an open position with the cam enclosed in the housing and a locking position with the cam extending from the housing for grasping a keeper. An axially reciprocable locking member is associated with the pivot shaft for pivoting therewith, and has a manually engageable button end projecting above the housing and a locking end within the housing. The locking end has circumferentially spaced locking surfaces, and a spring biases the member locking end into engagement with the housing. First and second locking notches in the housing receive the member locking end when the cam and handle are in the open and locking positions, respectively, and the locking notches each have a surface engaging one of the locking end locking surfaces to prevent pivoting of the locking member and pivot shaft when the member locking end is received therein.

Abstract: An enclosure latch arrangement including at least one latch assembly for securing a first enclosure portion relative to a second enclosure portion by providing, on the inside of the first enclosure a stationary latch bracket member having a pair of spaced pin members on a common line. The second enclosure portion is provided with at least one latch bar assembly, which includes a spring biased latch actuator in slidable abutting relation with a latch bar secured within the enclosure. The latch actuator is barshaped and has a pair of spaced pawl openings formed in an edge thereof, spaced a distance equal to the spacing between the pin members, with the pawls including cam edges at the point of operative coaction with the pin members.

Abstract: A security seal and method for detecting tampering. The security seal includes a first member, an adhesive layer applied to the first member, and an indicia printed directly on the adhesive layer in a desired detectable pattern. In one embodiment, the first member is adhered to the second member with the indicia detectable at least through the first member. With this arrangement, the pattern becomes detectably disrupted if the first and second members are moved relative to each other. In the preferred embodiment, both of the first and second members are part of a single transparent strip that can be looped through a shipping container locking mechanism and attached to prevent unauthorized access to the shipping container. In one form, tamper indicating tape is used to form the tamper indicating message "VOID" thereon if tampered with, thus giving a second visual indication of tampering. Heat sensitive material is used to prevent overcoming the tamper indicating tape by heating.

Abstract: A door locking assembly which facilitates removal and replacement of a damaged lockset without the need to remove the cylinder, levers or knobs, or the escutcheon plates, which includes a lockset mountable within a door, said lockset including a latch for locking the door, a spindle engageable with the lockset, said lockset including a bushing defining a spindle aperture for accommodating a first end of the spindle, said spindle being adapted to rotatably displace the bushing for actuating the latch, a handle for securing a second end of the spindle, said handle means defining a socket for withdrawing the spindle to remove the lockset from within the door.

Abstract: A portable handled door stop with an elongated rod, a handle a one end, and a wedge-shaped block at the other end of the rod. The rod extends for a length which is about equal to the distance between the user's hand in the lowermost position of the arm and the floor with the user in an upright position. A molded plastic one-piece construction formed with a cross section similar to an I-beam. A non-skid surface is provided on the base of the unit. A hook-shaped projection at the top end of the door stop enables it to be stored when not in use.

Abstract: Door Guards are shielded from outside access with hand tools while in the open guarded position. The shields close off the opening space between the door and the jam and can be shaped to provide no leverage positions or grasping surfaces which can be used for destruction and release of the guard or opening of the door.

Abstract: An improvement in a control valve having a body, a body interior portion and plural exterior ports in communication with the interior portion. The improvement includes a plurality of dovetail-like body slots "isolated" or spaced from other slots. Each slot intersects an aperture in fluid communication with the body interior portion. A complementarily shaped, friction-retained slide-by plate is in each slot and at least one plate includes a port in fluid communication with the slot aperture. Each plate slides for removal without disturbing any other plate. A plate may be a blind closure plate, a ported plate tapped with any of several thread sizes or a "back-to-back" interface plate for supportively mounting valve bodies in tandem. A control valve system including a slotted valve body and an assortment of plates of various types provides substantially "universal" porting between the body and another valve body and/or one or more separate control components.

Abstract: A lock intended primarily for gliding or hinged doors or windows. The lock is an improvement over the prior art in that it is a very simple mechanism which nonetheless is secure and cannot be back-driven. The lock mechanism is made up of essentially two parts: a cam gear which is rotatably mounted on a housing and acts as an actuator, and a cam rack which is linearly slidable relative to the housing. Rotation of the cam gear causes the cam rack to move between an unlocked and a locked position. Once in the locked position, a gear tooth of the cam gear engages with a stop surface on the cam rack to prevent the cam rack from being back-driven.

Abstract: A door security system has a floor contacting foot pivoted on a prop, itself pivoted on a locking system attached to a door support. A bracket with opposed spaced apart face walls joined by edge wall to receive a door corner may be used to attach the door support. A hand releasable locking system has saw teeth engaging saw teeth on the door support. Prop mountings on both foot and locking system restrict the floor prop angle, which may be from 60.degree. to 70.degree., and conveniently 65.degree. to 70.degree., especially 69.degree.. The device may be installed permanently or temporarily, on a door, it is far more effective than a door chain. A ratchet may be incorporated to tighten the prop, and a release lever to `break` the prop. A floor plate with a hole may be used to fix the foot to the floor by a pin passing through a similar hole in the foot.

Abstract: A quick release clip molded of either aluminum or plastic for mounting on a window or door frame for securing a screen. Six such clips are equally spaced around the frame for latching cooperation with the screen. The clip is formed of a base secured to the frame by a press-fitting or a screw, a lever pivoted to one edge of the base and a clamp pivoted to a surface of the lever. Integral male and female cooperating snap parts on the lever and the base, respectively, secure the clip in latching position.

Abstract: A child-resistant latch release mechanism which requires operation of two control members which are separated by a distance greater than that which can be effectively spanned by a preschool child. The two control members must be operated first in a certain sequence and then simultaneously in order to permit operation of the latch release mechanism. Conventional self-latching upon closure is retained by the invention latch release mechanism.

Abstract: A lock striker unit comprises generally a striker and a plastic cover. The striker includes a base plate, a generally U-shaped rod secured to the base plate and a molded plastic material covering the rod to provide each shank portion of the same with a diametrically larger portion and a diametrically smaller groove portion. The groove portion is positioned near the base plate. The plastic cover is sized to cover a major surface of the base plate and has an elongate slit which is constructed to permit the U-shaped rod to pass therethrough. The elongate slit includes two circular openings connected through a thinner slit. Each circular opening is so sized as to make a latched engagement with the groove portion of the shank portion when the plastic cover is properly attached to the base plate.

Abstract: A draw latch for a container or the like including a latch mounting bracket, a U-shaped yoke, with the bracket and yoke interconnected for pivoting of the yoke relative to the bracket, a hook with a U-shaped end defining a cam space, with the bight of the yoke slidingly positioned in the cam space, and a cam carried in the cam space for translation and rotation relative to the hook and yoke for actuating the latch.

Abstract: A testing device (1) with a test button (4) and a rod-shaped plunger (5) for testing a locking device that can be actuated on a door (2) pivotable around a hinge on a container (3) is to be improved in terms of simple design and mounting. To simplify design and mounting, a fastening structure (8, 7) for the movable, rotatable mounting of the testing device (1) is arranged on the door (2). The end (13) of the plunger pointing toward the container (3) is provided with a holding structure (14) which is introduced into a mounting support (16) arranged permanently on the container (3) such that the holding structure (14) is out of engagement with the mounting support (16) in normal operation, and in testing operation. The holding structure engages the mounting support (16) in such a way as to limit the pivoting stroke of the door (2).

Abstract: A reciprocating device for a movable member includes: a stationary member; a movable member held by the stationary member in such a manner as to be able to reciprocate; a biasing device provided between the movable member and the stationary member and adapted to bias the movable member in at least one of the reciprocating directions of the movable member; and a lock device for stopping the movable member in the course of its reciprocation, the lock device including: a cam groove formed on either the stationary member or the movable member and extending around a heart-shaped island; a lock pin having a base end section rotatably supported by either the stationary member or the movable member on which the cam groove is not formed and a tip end section bent toward the bottom of the cam groove; and a pressing device for pressing the tip end section of the lock pin toward the bottom of the cam groove, the pit section of the heart-shaped island of the lock device being equipped with a tapered surface inclined towar

Abstract: A latch unit having a cylindrical housing consisting of two half portions for containing a latch bolt, a moving member to retreat the latch bolt and a recovering member to push the latch bolt forward to an original position in which the latch bolt extends out of the housing.

Abstract: A hidden lock for a jewelry or treasure box which is equipped with a flexible metal wire having one end thereof projected from an opening disposed at the bottom of the front side of a lower case; and a lock plate having an M shaped recess disposed thereon being disposed on the inner surface of the lower case of the box for engagement with the projected end of the wire which can be slidably guided through the recess. The cover case is associated with the lower case by means of a pair of spring biased hinges so that the cover case can be automatically opened as the cover case is pushed downward, permitting the flexible metal wire to be disengaged with the M shaped recess of the lock plate.

Abstract: A latch includes a housing and first and second latch arms. Each latch arm defines a latching end, and the arms are pivotable between a latching position and a release position. A rotatable cam longitudinally shifts a latch arm follower, and the latch arms define bearing surfaces which engage the latch arm follower. The housing includes first and second housing parts that are formed with the same dies or molds.