Friction winch assembly
CA 2093394 A1 · Owner: Ryder Automotive Operations, Inc. · Inventors: Phillips, David W.; Lempke, Earl C.; Mayne, Roger
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A friction winch assembly for securing automobile or other heavy objects to a transporting vehicle includes a spindle rotatably mounted on the transporting vehicle a ratchet gear, axially mounted on said spindle and an actuator cap for threaded, engagement on said spindle. A chain or other elongated means is connected at one of its ends to the spindle for winding or unwinding thereon, and at its other end to the automobile. To wind the chain and secure the vehicle, the actuator cap is rotated with a tool for longitudinal movement along the spindle toward the ratchet until longitudinal movement is limited by a collar affixed to the spindle. The actuator cap, ratchet and spindle eventually …
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 April 5, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 5, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 2015.
- 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.