Rotatable flexible drive shaft with noise abatement
CA 1134634 A · Owner: General Motors Corporation · Inventors: Shannon, Gilbert E.; Friesorger, David F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
C-3154, Abstract of the Disclosure:, Flexible drive shaft lubricated by a suitable, grease, rotatably mounted within a flexible casing routed within a vehicle from an input to an output tip connected to a deflection instrument. The drive shaft and output tip are designed to pump the grease to a collection station so that collected grease serves as a cushion to limit contact of the drive shaft with the interior casing to thereby provide noise abatement for the rotating drive shaft.
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 November 2, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 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.