Tape transport apparatus incorporating porous air bearing
CA 2247646 C · Owner: Gavit, Stephan E. · Inventors: Gavit, Stephan E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air bearing (20) for use on a tape transport apparatus is connectable to an air source (80) and supports a tape (14) on a cushion of air as the tape is transported. The air bearing comprises a housing (22) having an air inlet (34) adapted for connection to the air source and a bearing member (40) disposed on the housing and located so that the tape is transported across a bearing surface. The housing and the bearing member are configured to form a plenum chamber having an interior in fluid communication with the air inlet. At least a portion of the bearing member is fabricated out of a porous material allowing pressurized air in the plenum chamber to pass therethrough and out of the …
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
- Filed February 24, 1997 and granted May 27, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2019.
- 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.