Conveyor-type, hydraulic-powered, material-spreading apparatus
CA 1066988 A · Owner: Tarrant Manufacturing Company · Inventors: Murray, Gregory J.; Taylor, Bruce W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed a conveyor-type hydraulic-powered, material-, spreading apparatus comprising a material-storage hopper a, conveyor for conveying material from the hopper for spreading same and a hydraulic, power-transfer system comprising two doubleacting, hydraulic cylinders in communication with and operatively connected to valves which control and direct hydraulic fluid under pressure to the hydraulic cylinders to drive the conveyor. Each hydraulic cylinder has two drive strokes per cycle with, each drive stroke approximating 160 degrees each hydraulic, cylinder is 90 degrees out of phase with the other with positive, drive resulting throughout the cycle. Also discloses the hydraulic, …
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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 November 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 27, 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.