Anti-lock braking system
CA 2008218 C · Owner: Matouka, Michael F. · Inventors: Matouka, Michael F.; Wilkey, Paul D.; Bright, James A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A vehicle anti-lock braking system is provided having an actuator frame with a bore fluidly connected to the wheel brake and to a master cylinder via n solenoid valve. A piston, mounted within the bore is operationally, associated with a non-rotative nut which is threadably engaged by a power screw. To maximize reaction speed a high efficiency, thread is utilized between the power screw and the non-rotative nut. Therefore, pressure within the actuator can back drive the piston. To prevent the backdriving of the piston there is a spring locking mechanism.
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 January 22, 1990 and granted May 31, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2012.
- 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.