Static flow tube element in a liquid manure handling system
CA 1136612 A · Owner: Primus, David R. · Inventors: Primus, David R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The adapter for the liquid manure vacuum agitator of the present invention comprises an elongated cylindrical tubular member having opposite ends and an internal annular bore defined by the interior cylindrical wall of the tubular member. A continuous spiraling blade is attached to the interior of the cylindrical wall, the blade having sufficient width to extend partially radially inwardly to terminate in an inner end which is spaced axially outwardly from the centerline of the tubular member, thereby giving an open center through the tubular member along the longitudinal centerline thereof. The spiraling blade causes agitation of the manure as it is forced through the tube. -1-
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 November 30, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 1999.
- 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.