Electronic dynamic braking for tape recorder devices
CA 1060987 A · Owner: Sycor · Inventors: Klumpp, Marlin K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For use in a tape transport including a drive motor for transporting tape across a recording or playback head, and a motor drive circuit for selectively applying drive current to the motor, an electrical circuit for applying a reverse drive current to the motor for rapidly reducing the speed of the drive motor upon the receipt of a stop signal. The circuit provides controlled reverse current to the drive motor over a period of time initiated by a stop signal and extending until a predetermined reduced speed is reached after which the reverse drive signal is removed and the motor allowed to coast to a halt. -1-
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 21, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 21, 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.