Variable involute disc gauge
CA 1060643 A · Owner: Illinois Tool Works Inc. · Inventors: Flair, Henry J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure An involute disc gauge which is capable of verifying that a variable involute gear checking apparatus is functioning properly is described. The gauge consists of a support block, which is mounted for rotation and an adjustable bar which is slideable in the support block to adjust the diameter of the circle described by the outer end of the bar. Removable discs of various diameters are provided at the end of the adjustable bar in accordance with the base diameter of the gear being checked to achieve highly accurate verifications of a multitude of gear sizes with a single gauge.
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 August 21, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 21, 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.