Power assisted gear systems
CA 1084417 A · Owner: Cam Gears Limited · Inventors: Adams, Frederick J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A steering gear system includes a rack driven by a pinion. When the torque on the pinion reaches a predetermined level the steering column to which the pinion is attached moves axially. The axial movement of the steering column brings a disc connected with it into electrical conductive contact with a fixed electric contact. This energizes an electric motor. Further axial movement of the steering column causes the disc to contact a friction clutch plate which is connected with a pulley driven by the electric motor. This results in frictional engagement between the disc and the friction clutch plate and a power assist from the electric motor to move the rack which is a function of the torque …
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 August 26, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 26, 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.