Locked transmitter tag assembly and method of lockably attaching same to object
US4812823A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 13, 1987 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Apr 13, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B73/0017
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A sealed, locked housing for an electronic transmitter tag includes a transmitter assembly (20), a battery pack (24), a strap (22), and means for lockably securing the strap and battery pack to the transmitter assembly. The transmitter tag, in a preferred embodiment, is intended for use with a house arrest monitoring system. The transmitter assembly (20) includes a first sealed compartment (54) wherein electronic circuitry (56) is housed. This circuitry transmits signals that uniquely identify the tag and that signal the occurrence of a sensed tamper event. The transmitter assembly also includes a second compartment (25), open to a top side of the assembly, into which the battery pack may be sealably inserted. The means for lockably securing the strap to the transmitter assembly include rails (30, 32) selectively attached to the strap at a desired length. These rails are slidably inserted into open ends of respective keyed channels (31, 33) along each side of the assembly. A locking wedge, comprising a male part (26) and a female part (28), is then slidably inserted and locked into another keyed channel (27) along the top of the assembly, blocking removal of the battery pack and th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.