Apparatus and method for monitoring the operation of a vehicle drive shaft
CA 1322236 C · Owner: Revenaugh, Paul W. · Inventors: Shifflet, Glenn; Revenaugh, Paul W.; Johnson, Herbert C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method for monitoring the operation of a hollow drive shaft is disclosed. An instrument is inserted within the shaft. A first end of the instrument includes an elastomeric retainer having a relaxed outer diameter which is slightly smaller than the inner diameter of the shaft. The retainer is compressed to expand it into frictional engagement with the inner surface of the drive shaft to retain the instrument therein. A generator is mounted within the instrument for rotation therewith. The generator includes a relatively rotatable output shaft having a pendulum attached thereto. When the drive shaft is rotated, the instrument and the generator rotate therewith, but the output …
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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 14, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 14, 2010.
- 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.