Reversible self-propelled center pivot sprinkler system
CA 1045656 A · Owner: Townsend, Loren R. · Inventors: Townsend, Loren R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reversible self-propelled center pivot sprinkler system for sprinkling or irrigating a relatively large area surrounding a central pivot comprising an overhead water supply pipe extending outwardly from the center pivot point and supported by a plurality of spaced-apart, wheeled towers. A drive apparatus is provided on each of the towers to propel the towers and water supply pipe around the central pivot point. A control apparatus is provided on each of the towers for selectively operating the drive apparatus associated therewith to maintain the pipe and towers in an aligned condition as the water supply pipe is pivoted around the center pivot point. The drive apparatus is connected to a …
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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 January 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 1996.
- 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.