Pneumatic radius sensor
CA 1136849 A · Owner: Computer Peripherals, Inc. · Inventors: Platter, Sanford
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pneumatic radius sensor is embodied in a fluid bearing such as, an air bearing for a tape transport to determine the radius of tape wrapped on an adjacent supply or take up reel. The sensor includes a chamber in fluid communication through a plurality of metered orifii to the region of the changing wrap angle of the tape on the air bearing the plurality of orifii, being arranged to provide an essentially linear relationship between pressure in the chamber and the wrap angle of the tape. Pressure sensing means in the chamber senses the pressure therein, so the radius of tape on the adjacent reel can be determined.
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 7, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 1999.
- 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.