Abstract: An electronic security bolt seal for locking a hasp includes an electronic module that has a circuit board disposed at an interior cavity of a housing. The housing includes apertures aligned with each other, such that a bolt is configured to be inserted through the apertures and through the interior cavity to engage the circuit board and complete an electronics circuit. When the bolt is inserted through the apertures of the housing, a locking device engages a tip region of the bolt that protrudes from the housing to secure the electronic module to the bolt. Responsive to a determination of breaking the electronics circuit, the circuit board is operable to generate a seal tamper signal. The locking element can be unlocked by a user to disengage the locking device from the bolt to permit the bolt to be removed from the electronic module and disengaged from the hasp.

Abstract: An electronic security bolt seal for locking a hasp includes an electronic module that has a circuit board disposed at an interior cavity of a housing. The housing includes apertures aligned with each other, such that a bolt is configured to be inserted through the apertures and through the interior cavity to engage the circuit board and complete an electronics circuit. When the bolt is inserted through the apertures of the housing, a locking device engages a tip region of the bolt that protrudes from the housing to secure the electronic module to the bolt. Responsive to a determination of breaking the electronics circuit, the circuit board is operable to generate a seal tamper signal. The locking element can be unlocked by a user to disengage the locking device from the bolt to permit the bolt to be removed from the electronic module and disengaged from the hasp.

Abstract: An electronic security bolt seal for locking a hasp includes an electronic module that has a circuit board disposed at an interior cavity of a housing. The housing includes apertures aligned with each other, such that a bolt is configured to be inserted through the apertures and through the interior cavity to engage the circuit board and complete an electronics circuit. When the bolt is inserted through the apertures of the housing, a locking device engages a tip region of the bolt that protrudes from the housing to secure the electronic module to the bolt. Responsive to a determination of breaking the electronics circuit, the circuit board is operable to generate a seal tamper signal. The locking element can be unlocked by a user to disengage the locking device from the bolt to permit the bolt to be removed from the electronic module and disengaged from the hasp.

Abstract: An electronics circuit first portion is entirely within an electronics module housing, sensing and transmitting a tamper condition of a normally locked bolt. The bolt comprises a second portion of the electronics circuit. The seal electronics circuit first portion comprises a seal monitoring, tracking and communications system. The bolt passes through the module housing and is secured with a locking device external the module such that the module is reusable when the bolt is severed. The bolt and module housing include a cooperative contamination sealing arrangement for sealing the bolt to the housing. The electronics circuit first portion includes RFID tamper detection circuitry, GPS, Wi Fi and cell phone communication and tracking technologies. The cell phone technology tracks the seal using cell phone towers and Wi Fi access points and communicates the seal tracked position and seal status data to a cell phone communications center.

Abstract: An electronic circuit senses and transmits a tamper condition of a bolt seal locked with a locking device external the module on a side of the module opposite the bolt head. The module is reusable intact when the bolt/locking device, which is conventional, is opened. In various embodiments, a tang type metal/plastic or plastic tamper indicative seal may be attached through a hole in the bolt tip region that has a narrowed diameter tip or attached in a one way clutch action on the tip, or which mates in a bolt groove at the bolt tip region and/or a conventional tamper evident seal is attached to the surface of the bolt shank at the bolt tip region in a clutch action. Different bolt embodiments comprise non-electrically conductive or electrically conductive plastic or steel shanks with juxtaposed electrical conductors along the shank connected to external conductors formed by coatings or axially spaced cylindrical sleeves forming contact regions which engage the circuitry contacts inside the module.

Abstract: A tamper evident security seal includes a locking unit and a bolt with a groove at its shank locking portion, the groove for receiving a resilient locking ring attached to a lock body in a locking unit receiving the bolt in a locked state. The locking unit includes two housing portions one of which has a top wall, a bottom wall and a first upstanding segment of a circular cylinder side wall interconnected thereto may be of any color. The top wall has an aperture for receiving the bolt therethrough. A mating second housing portion has a second segment of a circular cylinder side wall, preferably white having ID indicia thereon, forms a circular cylindrical housing with the first housing portion and is captured between the top and bottom walls. A lock body first element is plastic and molded one piece with the second housing portion. A lock body second steel element mates with the first element forming a lock body with an annular channel in which the ring is positioned.

Abstract: An electronics circuit first portion is entirely within an electronics module housing, sensing and transmitting a tamper condition of a normally locked bolt. The bolt comprises a second portion of the electronics circuit. The seal electronics circuit first portion comprises a seal monitoring, tracking and communications system. The bolt passes through the module housing and is secured with a locking device external the module such that the module is reusable when the bolt is severed. The bolt and module housing include a cooperative contamination sealing arrangement for sealing the bolt to the housing. The electronics circuit first portion includes RFID tamper detection circuitry, GPS, Wi Fi and cell phone communication and tracking technologies. The cell phone technology tracks the seal using cell phone towers and Wi Fi access points and communicates the seal tracked position and seal status data to a cell phone communications center.

Abstract: Disclosed is a reusable locking unit and a one time use electrically conductive molded thermoplastic shackle loaded with carbon black particles and having a linear resistance that is periodically monitored. The locking unit includes an integrated circuit for measuring shackle impedance through terminals capacitively coupled to the shackle. The terminals allow for adjustment of the length of the seal shackle in the locked secured state. The terminals and shackle form an RC network having a complex impedance that manifests the locked adjusted shackle length. Two AC signals at two different frequencies are used to measure impedance, which is compared with an initially determined or continually generated reference impedance to determine a tampered state of the shackle. Temperature compensation is also disclosed. A time stamp is stored for noting the tampering time of occurrence.

Abstract: An electronic circuit senses and transmits a tamper condition of a bolt seal locked with a locking device external the module on a side of the module opposite the bolt head. The module is reusable intact when the bolt/locking device, which is conventional, is opened. In various embodiments, a tang type metal/plastic or plastic tamper indicative seal may be attached through a hole in the bolt tip region that has a narrowed diameter tip or attached in a one way clutch action on the tip, or which mates in a bolt groove at the bolt tip region and/or a conventional tamper evident seal is attached to the surface of the bolt shank at the bolt tip region in a clutch action. Different bolt embodiments comprise non-electrically conductive or electrically conductive plastic or steel shanks with juxtaposed electrical conductors along the shank connected to external conductors formed by coatings or axially spaced cylindrical sleeves forming contact regions which engage the circuitry contacts inside the module.

Abstract: Disclosed is a reusable locking unit and a one time use electrically conductive molded thermoplastic shackle loaded with carbon black particles and having a linear resistance that is periodically monitored. The locking unit includes an integrated circuit for measuring shackle impedance through terminals capacitively coupled to the shackle. The terminals allow for adjustment of the length of the seal shackle in the locked secured state. The terminals and shackle form an RC network having a complex impedance that manifests the locked adjusted shackle length. Two AC signals at two different frequencies are used to measure impedance, which is compared with an initially determined or continually generated reference impedance to determine a tampered state of the shackle. Temperature compensation is also disclosed. A time stamp is stored for noting the tampering time of occurrence.

Abstract: A bi-directional locking socket for use with a seal device which includes a shackle having a plurality of locking elements on a surface thereof. The socket comprises a locking insert forming a locking arrangement including a body defining a chamber therein. The locking insert further includes opposing top and bottom ends where the top end defines a top opening communicating with the chamber, and the bottom end defines a bottom opening communicating with the chamber. A plurality of mirror image spaced fingers define a passageway extending through the chamber. The plurality of fingers allow passage of the locking elements as a free end of the shackle is pulled through the passageway via either the top or the bottom openings in opposite insertion directions, and lock with a locking element of the shackle when the shackle movement is in an opposite direction to the insertion direction. In the alternative, the socket has a chamber with the locking arrangement formed one piece therewith.

Abstract: A bi-directional locking socket for use with a seal device which includes a shackle having a plurality of locking elements on a surface thereof. The socket comprises a locking insert forming a locking arrangement including a body defining a chamber therein. The locking insert further includes opposing top and bottom ends where the top end defines a top opening communicating with the chamber, and the bottom end defines a bottom opening communicating with the chamber. A plurality of mirror image spaced fingers define a passageway extending through the chamber. The plurality of fingers allow passage of the locking elements as a free end of the shackle is pulled through the passageway via either the top or the bottom openings in opposite insertion directions, and lock with a locking element of the shackle when the shackle movement is in an opposite direction to the insertion direction. In the alternative, the socket has a chamber with the locking arrangement formed one piece therewith.

Abstract: A molded one piece thermoplastic seal comprises a tab, a socket depending from the tab, a pair of links extending from the tab and a locking member secured to the other end of the links. A tether is secured at opposite ends to the locking member with one of the tether ends weakened. The locking member comprises a pair of resiliently secured tangs attached to a cross-member in which there are a pair of opposing grooves and a transverse hole for receiving the tether. The recesses and hole are inserted within the cavity of the socket with the tether free end inserted so as to lock the tether within the recesses and hole. The tether includes a plurality of projections, one projecting from the tether on each side of the locking member so that when the tether is locked to the locking member in the socket the tether cannot be removed. In a further embodiment, two locking members each having a pair of locking tangs are attached to a strap in tandem.

Abstract: A one piece molded thermoplastic, preferably polypropylene, high security seal for coin bags has a locking socket body from which a flag extends on one side and a rectangular flat elongated shackle extends on the opposite side via an intermediate flat member which has a tear band there across for selectively separating the member into two pieces to facilitate removal of the locked seal. The shackle has several locking circular segment teeth in two parallel linear arrays on opposite edges of the shackle adjacent to a tamper resistant flange at the member end. A locking sheet metal stamped insert has two sets of tangs defining two spaced tooth receiving openings in a socket locking cavity aligned with shackle receiving openings in the body. The body receives the insert transverse to the shackle insertion direction through a cavity side wall later sealed with a flap formed in the seal body. The locked shackle precludes removal of the insert should the side wall seal be tampered with.

Abstract: A low dielectric material made of a liquid crystal polymer, polytetrafluoroethylene, and hollow glass spheres. This material is a relatively low cost, low dielectric blend having good physical strength and chemical and temperature resistance.

Abstract: A security seal has an elongated flexible strap integral with a housing at one end. The other end of the strap can be moved through a passageway in the housing to form the strap into a closed loop. Facilities in the housing and on one surface of the strap permit movement of the strap out of the passageway and prevent reverse movement of the strap if the strap is properly inserted without a half-twist and into the proper end of the passageway. These facilities are ineffective to prevent reverse movement if the strap is improperly inserted. The seal is improved by forming a groove longitudinally in the passageway. A surface feature on the other surface of the strap is conformally received in the groove when the strap is properly inserted into the passageway without twisting. If the strap is improperly inserted, the passageway interferes with and applies force to the surface feature. This force discolors or deforms the surface feature to provide a visual indication of improper insertion.

Abstract: A lock for a railroad switch or the like, which comprises a housing having a socket at one end and an elongated shackle having an enlargement on one end and a recess on the other end for cooperating with locking members in the housing so as to be received in locking engagement therein. The operating member for the locking member is a rotatable and axially movable plunger. Springs are provided to bias the plunger in rotation to the locking position and forwardly. Pin and groove guide means is provided to maintain the plunger in the unlocking position and to allow the plunger to rotate to the locking position when the plunger is moved axially by insertion of the end of the shackle into the housing.

Abstract: A lock for a railroad switch or the like, which comprises a housing providing a socket at one end and an elongated shackle having an enlargement on one end and a recess on the other end for cooperating with locking balls in the housing socket to be received in locking engagement therein, in which the operating means for the locking balls in the housing is a rotatable member having an enlarged head disposed in a recess at the end of the housing opposite the socket end, the interior of said recess being cylindrical, the periphery of the enlarged head being sufficiently out of round to enable it to be rotated by a tool having a suitably shaped recess, yet not sufficiently out of round to be readily apparent from visual observation.

Abstract: A seal of the type having a housing with internal resilient fingers for receiving a shouldered stud in locking engagement, in which a separate cylinder is provided in the housing for closely surrounding the entire periphery of an end portion of the stud protruding beyond the resilient fingers to maintain the stud centered in the opening and prevent any lateral movement thereof, and thereby prevent attempts to open the stud by the insertion of tools to dislodge the resilient fingers from engagement with the stud. The cylinder surrounding the stud is inserted into the end of the housing remote from the stud-receiving end, and said remote end is then deformed with heat to retain the cylinder in the housing.

Abstract: A locking structure for assembly onto existing electric meter boxes or the like, said structure comprising a bushing for mounting onto the box cover and an apertured bracket for mounting inside the box so that the bracket aperture is aligned with the bushing. The structure is intended to receive a locking cylinder of the type having an enlarged head and an elongated body portion with expansible locking balls near the end remote from the head, and the parts are dimensioned and positioned to retain the cover tightly closed when the locking cylinder is assembled. The bushing completely encloses the head of the locking cylinder so that the other end of the cylinder is recessed in the bushing. Apertures may be provided in opposite sides of the forward end of the bushing to receive a seal transversely across the bushing, so that the locking member cannot be removed without rupturing the seal.