Height adjustable chassis for regulating the orientation of a chassis part in relation to a reference orientation
CA 2438972 A1 · Owner: Laursen, Niels Kjaer · Inventors: Laursen, Niels Kjaer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A chassis is described which is constructed of two lower side frames (1 2) , which at each end are provided with a wheel or caterpillar track. On each of the two lower side members, there is a horizontal bearing (7 8). Each of , these bearings are connected to an upper vertical side member (3 4) which at , their upper end is connected to two parallel cross members (5 6) through , horizontal bearings (9-12) for the development of a parallelogram connection. Between the lower and upper side members there are two double-acting , hydraulic cylinders (14 15). These can be connected in parallel in order to make a weight distribution possible. By means of a regulation valve (23) between …
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 February 22, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 22, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 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.