Bale density monitoring apparatus and method
CA 2033664 A1 · Owner: Lee, Curtiss M. · Inventors: Lee, Curtiss M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method for monitoring bale density in a round baler. A pair of hydraulic cylinders are operable to move a movable portion of the baler between its open and closed position. The bale density monitoring apparatus of the invention monitors pressure on the cylinders during bale formation. Upon sensing a differential in pressure between the cylinders a, signal is provided to the operator so that the tractor can be moved relative to the windrow to equalize pressure within the bale-forming chamber.
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 7, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 7, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2013.
- 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.