초록 ▼

A security device mounted on a support including a housing with a removable section and a base section. A terminal assembly having first and second terminals is disposed on a detachable portion of the housing that is directly mounted to the support. A printed circuit board and a pin assembly having

A security device mounted on a support including a housing with a removable section and a base section. A terminal assembly having first and second terminals is disposed on a detachable portion of the housing that is directly mounted to the support. A printed circuit board and a pin assembly having first and second pins is mounted in the removable housing section. Attaching the removable housing section to the device inserts the first and second pins into the first and second terminals respectively. A conductive material provides electrical communication between the first and second pins whereby a tamper detection circuit can be defined between the first and second terminals. Disengagement of one of the first and second pins from its respective terminal opens the tamper detection circuit. Detachment of the removable housing section disengages the pins from the terminals thereby opening the tamper detection circuit. Similarly, separation of the detachable portion and terminal assembly disposed thereon from the remainder of the device also opens the tamper detection circuit.

대표청구항 ▼

What is claimed is: 1. A security device mountable on a support, said device comprising: a base; a housing, said housing including a removable section removably secured to said base, and a detachable portion adapted to be directly secured to said support, said detachable portion detachably secured

What is claimed is: 1. A security device mountable on a support, said device comprising: a base; a housing, said housing including a removable section removably secured to said base, and a detachable portion adapted to be directly secured to said support, said detachable portion detachably secured to said base; a terminal assembly including at least a first terminal and a second terminal, said terminal assembly being disposed on said detachable portion; a first electrically conductive pin and a second electrically conductive pin disposed in said removable section of said housing, an electrically conductive strip providing electrical communication between said first and second conductive pins, said first and second conductive pins respectively engageable with said first and second terminals when said removable housing section is secured to said base, the respective engagement of said first and second conductive pins with said first and second terminals defining a tamper detection circuit whereby one of removal of said removable section from said base and detachment of said detachable portion from said base disengages said first and second conductive pins from said first and second terminals and opens said tamper detection circuit. 2. A security device mountable on a support, said device comprising: a housing having a first section and a second section, said second section being removably attachable to said first section; a terminal assembly including at least a first terminal and a second terminal; a pin assembly having a first conductive pin and a second conductive pin, said first and second pins respectively insertable into said first and second terminals for establishing electrical contact between said first and second conductive pins; a conductive strip providing electrical communication between said first and second conductive pins, the respective insertion of said first and second pins into said first and second terminals defining a closed tamper detection electrical circuit, the removal of one of said first and second pins from said first and second terminals opening said tamper detection circuit; and said first housing section including a detachable portion, said detachable portion adapted to be secured to a said support, said terminal assembly mounted on said detachable portion, said pin assembly disposed on said second housing section whereby detachment of said detachable portion from said first housing section disengages said pin assembly from said terminal assembly, attachment of said second housing section to said first housing section effects insertion of said first and second pins into said first and second terminals and removal of said second housing section from said first housing section effects disengagement of said first and second pins from said first and second terminals. 3. The security device of claim 2 wherein said terminal assembly, said pin assembly and said conductive material strip are all disposed in said housing when said second housing section is attached to said base. 4. The security device of claim 2 wherein said device includes a printed circuit board, said conductive material strip being formed on said printed circuit board. 5. The security device of claim 2 wherein said detachable portion is formed integrally with said first housing section. 6. The security device of claim 5 wherein said first housing further comprises a remainder, said detachable portion is connected to said remainder by a frangible web of material. 7. The security device of claim 6 wherein said first housing section is formed by injection molding a plastic material. 8. The security device of claim 2 wherein said detachable portion includes at least one aperture, said detachable portion being securable to the said support by inserting a fastener through said aperture. 9. The security device of claim 2 wherein each of said first and second terminals is adapted for connection to a wire whereby the opening of the detection circuit can be monitored at a location remote from the security device. 10. A tamper detection method for a security device mountable on a support, said method comprising: providing a housing for the security device, the housing including a first housing section and a second housing section, said second housing section removably attachable to said first housing section; providing the first housing section with a detachable portion, said detachable portion having a terminal assembly disposed thereon, the terminal assembly including a first terminal and a second terminal; securing the detachable portion to the said support; providing the second housing section with a pin assembly having at least a first conductive element and a second conductive element, said first and second conductive elements in electrical communication; attaching the second housing section to the first housing section, said attaching step establishing respective electrical contact between the first and second conductive elements and the first and second terminals and thereby defining a closed tamper detection circuit between the first terminal and the second terminal; and monitoring the tamper detection circuit, and detecting tampering when the tamper detection circuit is opened, the tamper detection circuit being opened by the disengagement of one of the first and second conductive elements from the first and second terminals, disengagement of the first and second conductive elements from the first and second terminals being effected by removal of the security device from the said support and by removal of the second housing section from the first housing section. 11. The method of claim 10 further comprising providing the security device with a printed circuit board wherein the tamper detection circuit defines a portion of the printed circuit board. 12. The method of claim 10 wherein providing the first housing section with a detachable portion includes connecting the detachable portion to a remainder of the first housing section with a frangible web of material. 13. The method of claim 12 further comprising forming the first housing section by an injection molding process. 14. The method of claim 10 wherein the step of securing the detachable portion to the support includes inserting a fastener through the detachable portion and securing the fastener to the support. 15. The method of claim 10 further comprising the step of connecting a first conductive member to the first terminal and a second conductive member to the second terminal and monitoring the tamper detection circuit for opening of the circuit at a location remote from the security device.