Endless chain apparatus for forming gears
CA 1088357 A · Owner: Gleason Works (The) · Inventors: Deprez, Thomas A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of Disclosure, A gear cutting machine is provided with an endless chain (10) for carrying a plurality of tools (12) into contact with one or more workpieces (14) to thereby form gear tooth configurations on the workpieces. The endless chain is pressed into firm contact with a first series of rollers (70) in the zone in which its tools make contact with a workpiece (14) to thereby prevent unwanted deflections of the endless chain and its tools relative to the workpiece. A second series of rollers (80) prevents side-to-side deflections of the endless chain (10) in the work zone. This provides full support for the endless chain in its cutting zone even though the driving elements for …
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 October 28, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 28, 1997.
- 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.