Speed responsive trailer stabilizer with zero slack
CA 1164497 A · Owner: Howard, Durrell U. · Inventors: Howard, Durrell U.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A trailer stabilizer is comprised of a hydraulic assembly having a pair of hydraulic units for providing viscous fluid resistance to relative turning movements between a trailer and a towing vehicle. The assembly includes flow controls for varying turning resistance in response to turning rate and vehicle speed. Slack removal means constantly bias interconnected couplings to provide rate sensing and turning resistance with zero mechanical slack. A brake control system actuates towed vehicle brakes in response to hydraulic system pressure and includes speed responsive means preventing brake application below a predetermined speed. Means are also provided for varying braking force in response …
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 March 27, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 27, 2001.
- 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.