Voltage compensated timing circuit
CA 1068339 A · Owner: Ncr Corporation · Inventors: Stewart, John W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A circuit provides means for controlling the energy derived from operation of a load by delivering a timed output pulse which is a function of the applied circuit voltage. Operation of a variable charging means, coupled across the applied circuit voltage, is initiated by application of an input signal to the circuit and charges at a rate dependent upon the applied circuit voltage. A differential amplifier responsive to the, condition of the charging means controls a driver which operates, a latch to determine the duration of the output pulse.
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 December 18, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 18, 1996.
- 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.