摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A tamper evident seal includes a wire hasp, an insert and a body for receiving the insert and the wire hasp. The one leg of the wire hasp must be located in the channel in the insert prior to the insert being located in the body. A coupling structure for coupling the insert in the body includes angularly extending supports extending angularly outwardly upwardly from the sides of the insert for engaging indentations in the sides of the body for further preventing removal of the insert and the wire hasp once they are fully inserted in the body and in the insert, respectively. The insert of the seal further includes centrally located reinforcing extension members, each including a round base portion partially extending above base surface of the insert and a centrally located, flattened side tamper evident extension member extending from the round base portion and which extension member which will show a blemish if the insert is tampered after the seal is completed.
摘要:
A tamper evident seal includes a wire hasp, an insert and a body for receiving the insert and the wire hasp. The one leg of the wire hasp must be located in the channel in the insert prior to the insert being located in the body. A coupling structure for coupling the insert in the body includes angularly extending supports extending angularly outwardly upwardly from the sides of the insert for engaging indentations in the sides of the body for further preventing removal of the insert and the wire hasp once they are fully inserted in the body and in the insert, respectively. The insert of the seal further includes centrally located reinforcing extension members, each including a round base portion partially extending above base surface of the insert and a centrally located, flattened side tamper evident extension member extending from the round base portion and which extension member which will show a blemish if the insert is tampered after the seal is completed.
摘要:
A utility meter clamping ring is locked to the meter by a locking device that locks the free ends of the ring together automatically without the use of a separate plunger device. A latch is spring loaded in the locking device housing in a normally biased lock position. The lock device is secured to one free end of the clamping ring. An apertured blade is attached to the other free end of the clamping ring. The ring is placed about the flanges of the meter cover and base flanges and the blade is then inserted into the locking device housing where its aperture is engaged automatically by the spring loaded latch and locked to the housing upon insertion. A conventional plunger key may optionally be used to unlock the latch and release the blade from the locked position to free the ends for removal of the meter cover via an optional bore in the latch engaged by the key. The latch may be optionally permanently locked to the blade so that either the locking device or the ring has to be destroyed. Weakening grooves are in the ring of the latter embodiment to facilitate breaking the ring open. Embodiments are disclosed for use with F and G type plunger unlock keys and include an anti-tampering sleeve for use in the lock to preclude tampering disengagement of the lock of the type used with an F type key.
摘要:
A seal housing body, extruded AL or molded plastic or metal, has cavity portions communicating through an interface region formed by one at least one frangible projection protruding from the first body into the cavity, a first cavity portion for receiving a locking body, the second cavity portion forming a shackle receiving passageway. The locking body has a channel inclined relative to and in communication with the passageway. A spring in the channel urges a shackle locking ball up the channel partially into the interface region, the ball, having a diameter sufficient to pass through the passageway, is captured in the channel by the at least one projection. The locking body has indicia and/or flanges, at one or both opposing ends, to provide tampering evidence. The channel is offset from the locking body's central plane forming a single channel side wall to preclude trapping the ball by tampering.
摘要:
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.
摘要:
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. A battery may be used to operate the circuit internal components and power from the remote transceiver may operate the circuit communication portion. Monitoring may be automatically periodic or activated only upon an external command. LEDs provide visual indication of the seal tamper status.
摘要:
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.