Gear pitch gauge
CA 1096608 A · Owner: Dominion Engineering Works Limited · Inventors: Feldman, Denis A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The extent of non-uniformity of the teeth on a gear wheel or on a rack may be readily checked using a handheld adjustable gauge providing a range of capability for teeth of differing pitch and size, the gauge having an adjustable datum screw by which the body of the gauge is positioned above the tooth tip so as to locate a depending mixed probe point against the flank of a tooth closely, adjacent the pitch circle, A moveable probe is set in corresponding contracting relation against the flank of another tooth and a dial test indicator coupled thereto is centred to give a preliminary reading. The gauge is then relocated without further adjustment on another pair of teeth and the variation …
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 March 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 1998.
- 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.