Tape transport reel servomechanism
CA 1052461 A · Owner: Pertec Computer Corporation · Inventors: Matula, Jerry; Gervais, William J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tape transport system having a capstan servomechanism for velocity control of tape across a read/write head and separate reel servomechansims for tape supply and take-up control and also having tape loops in, vacuum columns is provided with tape position feedback to each reel servomechanism to stabilize reel positions in a standby (zero capstan speed) condition from AC tachometers of the induction-generator type normally used during steady state (steady capstan speed) for velocity feedback.
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.