Pneumatic record player
CA 1075615 A · Owner: Koda, Masuo · Inventors: Koda, Masuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A record player system wherein a hollow turntable platter is supported with an internal inserted supporting body and incorporated with a driving means mounted on said supporting body. During operation, said turntable platter is slightly floated on said supporting body with compressed air induced into the interior of said hollow turntable platter through a conduit formed within said supporting body. A transversely elongated tonearm is fixed on a cylindrical slider which is slidably mounted on a straight horizontally elongated hollow tube which is slightly departed from a turntable surface at an adjacent location said orifices arranged on a peripheral surface of said hollow tube to press a …
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 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 15, 1997.
- 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.