Dry feed dispensing device for hogs
CA 2028534 A1 · Owner: Big Dutchman Cyclone, Inc. · Inventors: Denbleyker, James R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for dispensing dry feed to animals particularly hogs, including a housing having an interior storage chamber for dry feed. An animalactuatable valve projects downwardly through a discharge opening formed in the lower end of the housing to permit controlled dispensing of dry feed. The valve element has an upper valve plate disposed within the feed chamber for normally closing off the discharge opening and an elongate actuator rod is fixed to the upper valve plate and projects downwardly for actuation by the animal. The valve plate is preferably of a downwardlyopening truncated conical configuration to permit scooping of feed into the discharge opening during oscillation of the valve …
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 October 25, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 25, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 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.