Resistance loop equipment security system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 26, 1988
Grant Date -
N/A
app pub date -
May 12, 1986
filing date -
Mar 21, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An equipment security system is provided herein which is capable of monitoring at least one security loop for detecting unauthorized removal of equipment interconnected within the security loop by means of a connecting member comprises a predetermined resistance secured in or to the equipment forming the security loop, that resistance being one arm of a resistance bridge. Such predetermined resistance has a resistance value sufficient to maintain the resistance bridge in a substantially-balanced state. The resistance bridge has a DC voltage permanently applied across one of its two pairs of diagonal terminals and has a diode bridge connected across the other of its two pairs of diagonal terminals. Means are responsive through the diode bridge for indicating an unbalanced state of the resistance bridge to indicate interruption of the security loop, thus enabling the alarm or warning system.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully