Monitoring apparatus for redundant control systems
CA 1107370 A · Owner: Bendix Corporation (The) · Inventors: Tawfik, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Monitoring apparatus for redundant control systems includes means for preventing the monitoring apparatus from failing to a "good" state. Each of the channels in the redundant system generates a command signal which is compared to a signal provided by adding the command signal generated by another of the channels to a tracer signal. The amplitude of the addition signal is such so that the comparator toggles between its "good" and "fail" states to obviate failure of the monitoring apparatus to its "good" state.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted August 18, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.