Transguard Industries, Inc.

E.j. Brooks Company

Transgaurd Industries, Inc.

Tranguard Industries, Inc.

Craig B Hamilton

Terrence N Brammall

David L Stevenson

Richard C Dreisbach

Carlos Pinho

Stanley Gilbert

Richard Gnoinski

Jeffrey A Brimmer

Robert F Emmons

Robert E Stone

Robert Debrody

Rodney Ridenour

Jeffrey Eugene Warner

Jeffery Alan Brimmer

Jeffery Eugene Warner

One end of a stranded steel cable is attached to a cast zinc seal housing having a chamber in which a steel sleeve with a tapered bore is positioned. The sleeve in one embodiment is fixed to the housing in the chamber or may be displaceable and captured in the chamber in a further embodiment. A serpentine clip locking member captured in the housing chamber resiliently radially grips the a second end of the shackle inserted into the sleeve bore and wedges and locks to the cable and sleeve when the shackle is withdrawn. The sleeve precludes damage to the softer zinc housing by the locking member when the locking member is displaced in the housing chamber. Various embodiments are disclosed. In a further embodiment, the one end of the cable exits the housing in a plane different than where the second end enters the chamber to enhance ease of insertion of the second end into engagement with the locking member.

Security seal and lock with enhanced bore sleeve

An elongated channel protector has an end wall that precludes axial displacement of the protector along an elongated rail car plug door operating handle in one direction. Angle shaped members extend from the protector laterally for engaging a cover appurtenance on the door for precluding axial displacement of the protector in the opposite direction. A pair of legs depend from the protector side walls and have aligned holes for receiving a bolt seal. Tubular elements surround the holes to protect the seal head and locking body. The seal is seated beneath the handle which is covered by the protector locking the protector to the handle.

Plug door handle bolt seal locking device

An electrical connector is for use with a cylindrical member having an electrically conductive coating which can be damaged. The connector comprises a steel stamped ring with a terminal extending from the ring. Three like contacts overly the central opening of the ring and are bent for abutting the received cylindrical member in resilient sliding ohmic engagement regardless of the insertion or withdrawal direction of the member without destructive damage to the member coating. The contacts are relatively stiff to provide vibration resistant engagement with the member. The ring is supported in a slot in a housing to further stiffen the connector and the contact engagement with the member which completes a circuit which if broken is sensed and transmitted as a tampered condition.

Electrical connector for a cylindrical member

A seal and lock mechanism employs a cable and a mechanism for securing a free end of the cable to the seal by a wedging action within a tapered housing bore employing wedging means such as balls and the like. The wedging action is enhanced by roughening the surface of the wedging means or otherwise improving their resistance to displacement with respect to the surface of the cable.

Security seal and lock

A molded transparent thermoplastic housing has a programmable transmitting circuit for transmitting seal identifying serial number, seal location, container identification and other data to a local receiver. A door in the housing permits access to the circuit for programming the seal indicia and related data for transmission. A contact arrangement forms a switch upon insertion of a locking bolt into a locking mechanism in the housing and applies battery power through the bolt to activate the data generating circuit. A conductor along the bolt shank is connected to the circuit provides a tamper evident signal to the circuit when the bolt is severed. The circuit senses the removal of the bolt or severed bolt condition for generating a &ldquo;tamper&rdquo; signal which is transmitted to a local receiver/reader. The conductor at the bolt may be a wire in a plastic tube surrounding the shank, a conductive layer over an insulation layer on the shank and over the conductive bolt head in ohmic contact with the head or a wire in a hollow metal tube. Severing the bolt severs the wire or the ohmic contact between the head and coating or between the head and the wire in the tube to indicate tampering. The seal periodically in random periods transmits the seal condition, whether normal or tampered. In an alternative embodiment, an interrogation unit may interrogate the seal which then transmits its locked or tampered states according to the locked or tampered condition of the bolt.

Electronic security seal

Two mating L-shaped steel sheet casing members in one embodiment for sliding doors are secured to a corresponding door and have overlying front walls in the closed state. Each member has a plurality of corresponding locking keeper elements. In the closed state the keeper elements are in interdigitated juxtaposed and preferably welded to the casing members via through optional bores in the casing members, or extend through the side walls of the casing formed by side wall sections. The keeper elements in one subassembly are slotted to allow for misalignment with the other keeper elements for receiving a locking bolt seal shaft. The keeper elements optionally have tongue projections for engaging a gap between the closed doors. An angle iron member shields the rear of the chamber below the lowermost locking element to protect the seal locking body. Other embodiments are disclosed and include cast assemblies with no weldments and a single casing and hasp for use with swinging doors or a rail car plug door. The casing includes keeper elements which receive hasp-like keeper elements attached to a door and which mate in the closed state with the hasp attached to a support in interdigitated relation.

Bolt seal lock device

A lower steel plate casing has a housing attached to a back plate secured to a door and defines an enclosed chamber defining a channel portion through which a portion of an operating handle of a swing door keeper bar passes. An upper steel plate casing has a housing and is pivoted to the back plate. The upper casing housing defines a further enclosed chamber having a further channel portion through which a portion of the handle passes in cooperation with the lower casing channel portion in a housing locking position. A bolt seal has a head fixed to a shank and a lock body releaseably attached to the shank for locking the two housings together. The shank is laterally protected by the enclosed chambers and axially protected by the head at one shank end and the lock body at the other shank end and by various housing plates having apertures in which the head, lock body and the bolt shank are received.

Bolt seal protector hasp

A steel plate hasp is permanently fixedly attached to a door keeper bar, the bar for rotating about its longitudinal axis between door closed and open states. A casing has a plurality of walls forming a housing cavity in which the hasp is received through an opening in a housing wall with bolt seal shank apertures aligned in the hasp and housing. The casing may be permanently secured to the door by bolts or welds or may be selectively attached and removed from the hasp in a locked and unlocked state without fixed attachment to the door. A bolt seal has a shank with a head at one end wherein the head engages a housing wall and a locking body engages and locks to the shank other end and to a further housing wall. The shank between the head and lock body is fully enclosed by the housing and door to preclude access to the shank by tampering tools. The casing when secured to the hasp cooperates with the door to prevent the keeper bar from rotating open. The hasp rotates within the housing cavity of the permanent type casing. Other casing embodiments are disclosed for use with different latch hasps.

Locking device for door keeper bar

A plurality of walls form a housing cavity in which a latch hasp is received. An opening in the housing receives therethrough the latch hasp, the latch enclosing the cavity. The bolt seal has a shank with a head at one end or with a U-shaped bight in a second embodiment. The head engages a housing wall and a locking body engages and locks to the shank at a shank end distal the head. The shank between the head and lock body is fully enclosed by the housing and latch to preclude access to the shank by tampering tools. In a second embodiment, the shank bight engages the received hasp of a latch. The shank distal the bight is locked to the housing by a locking body. The latch depends into and encloses the housing cavity open at the top. The shank between the bight and the locking body is fully enclosed in the cavity. Different housings are disclosed wherein the head may be enclosed or exposed for access by a shank breaking tool. A reusable bolt and locking body is disclosed for use with several embodiments.

Protection device for bolt seal and hasp

A lock body through bore receives a steel bolt with an array of annular grooves. A locking mechanism secured in the bore has an annular array of locking jaws normally biased engaged with an inserted bolt groove. A jaw spreader has a conical surface for spreading the jaws radially outwardly to disengage the bolt. A locking member normally is radially outwardly of the jaws to preclude such spreading. A spring with a high spring constant, e.g., 300 pound load, axially biases the locking member in the jaw locking position. The spreader and locking member define a locking jaw conical path for radially outwardly releasing the jaws during bolt insertion and for locking the jaws in the opposite bolt withdrawal direction. A manually operated tool with a rotatable cylinder which engages the spreader and including a pair of lock gripping tines provides a high force to the spreader to axial displace it against the locking member spring to release the bolt locking jaws while simultaneously radially outwardly releasing the jaws from the bolt.

Growing community of inventors

Waterloo, IN, United States of America

Craig B Hamilton