Turntable direct-drive system
CA 1052282 A · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Kitamori, Teruaki; Saito, Humitoshi; Tsujihara, Toshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A turntable direct-drive system in which a cylindrical rotor having an inverted U-shaped cross sectional configuration is carried by a turntable shaft and two stator, cores with windings mounted thereupon are disposed at opposite sides, respectively, of the side wall of the cylindrical rotor and spaced apart thereform by a distance suitable to exert the driving force to the side wall of the cylindrical rotor. A turntable is supported by the turntable shaft or on the top of the cylindrical rotor directly or through a plurality of protections extended therefrom or a plurality of elastic supporting members attached thereto so that the turntable may be maintained at a level and vibrations …
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 April 10, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 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.