Tape drive system
CA 1061900 A · Owner: Schlumberger Instruments Et Systems · Inventors: Merle, Jean-Pierre; Pavie, Claude
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In accordance with an illustrative embodiment of the present invention, a tape drive system has two tape packs mounted for rotation in a housing. An endless elastic belt is mounted around two rollers to engage the tape packs on their periphery. A first roller is urged by the tension of the belt against the two tape packs and the belt is squeezed between each pack and this first roller. This squeezing action opposes the movement of the belt producing on the belt a tauter portion and a slacker portion which create a tension on the tape. All rotating parts are mounted without friction and only one external drive applied either to the tape or to anyone of these rotating parts is sufficient to …
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 September 4, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 4, 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.