Plow assembly with adjustable trip mechanism
CA 2401809 A1 · Owner: Goos, Mary T. · Inventors: Goos, Mary T.; Seaman, Lyle; Hollinrake, Mark S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plow for mounting to a vehicle is disclosed. The plow can include a moldboard, having a movable cutting edge and an adjustable bias trip mechanism having a biasing, member preferably in the form of a spring. The adjustable trip mechanism can be, arranged with the cutting edge of the moldboard to urge the cutting edge to a plowing, position. The spring can be cooperatively arranged with a retainer a pin for , example, at, one or more retaining positions to impart a preload biasing force upon the spring that, varies according to the retaining position selected. The preload biasing force can act as a, trip resistance force which must be overcome before the cutting edge moves. A lever …
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 September 6, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 6, 2024.
- 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.