Shaft coupling
CA 2006824 A1 · Owner: Gundlach, Theodore F. · Inventors: Gundlach, Theodore F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
OF THE INVENTION:, This shaft coupling (10) is for connecting a first shaft (12) to a second shaft (14), each of said shafts having end flanges (16, 18), respectively, disposed in face-to-face relation. The coupling is provided with a key assembly (24) to transfer torque between the shafts, and a housing assembly to align and connect the shafts. The key assembly includes a key block (34) inserted into aligned peripherally accessible keyways (36, 38) formed in the respective flanges. The housing assembly includes a pair of semi-circular housing segments (28 30) of generally U-shaped cross section which enclose the flanges, and diametrically opposed sets of pivotally mounted toggle bolt …
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 December 28, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 28, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 28, 2011.
- 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.