Motorized spindle with indexing fixture
CA 2238649 C · Owner: Unova Industrial Automation Systems Inc. · Inventors: Metzler, Joel; Hykes, Timothy W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spindle, comprised of a spindle body (68) and an indexing fixture (29) is , configured to retain, and rotatingly drive a crankshaft (10) relative to a , grinding tool so that each pin (16) on the crankshaft (10) is ground with a high degree of precision. A coupling mechanism (174) such as a pair of jaws , (190, 192) with complementarily shaped teeth is interposed between the , spindle body (116) and the indexing fixture (29). Pressure is applied to one side of the coupling mechanism so that the jaws are normally engaged and the spindle body (116) and the indexing fixture (29) rotate as a unit. Motive power is supplied by a servomotor (98) secured to a primary drive shaft (100) which …
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
- Filed November 20, 1996 and granted September 3, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 20, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 2018.
- 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.