Rotary head type magnetic tape video recording-reproducing device
CA 1060988 A · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Hiroyasu, Mamoru; Saito, Teruo; Yasuda, Fujio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a rotary head type magnetic tape video recordingreproducing device of the type in which a magnetic tape from a supply reel is wrapped around a rotary drum carrying magnetic heads along the path of revolution thereof at an angle other than 0° relative to the axis of rotation of said rotary drum and is taken up by a take-up reel for recording or reproducing when a stop button is depressed or the power supply to a take-up reel driving motor is interrupted the motor is, stopped and then immediately reversed in direction for a predetermined time, thereby loosening the tension of the magnetic tape. This arrangement prevents the adhesion of the magnetic tape to the surfaces of the magnetic tape …
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.