Compact torque limiting clutch
CA 2073884 A1 · Owner: Heidenreich, David C. · Inventors: Heidenreich, David C.; Nichols, Keith A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compact torque limiting clutch provides spring cup bolt assemblies for interengaging a pressure plate and input flange on opposite sides of a friction flange of an output hub. The spring cup assemblies include bolts employed for securing the clutch elements together, such bolts being restricted from rotatingduring the assembly process by engagement with noncircular apertures passing through the retainer plate. The torque limiting clutch is of a pancake design contained between axially displaced planar surfaces defined by an input flange on one side and a pressure plate on the other. In another embodiment of the invention, a keeper plate is coaxially secured to an output hub with a …
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 July 15, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 15, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 15, 2014.
- 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.