Soil loosening device
CA 1262212 C · Owner: Steiner, Walter · Inventors: Steiner, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The soil loosening device has at least one preferably two, journals protruding downwardly from a supporting body which, are driven to a pivotal motion along a limited angle. Tine-like soil loosening tool members in bifurcate arrangement to be, driven along a circle segment, are mounted on the journals. The driving unit for driving the tools is characterized by its simple design since it consists of only a few reliably guided, and sturdy components. Particularly there is provided a crank, shaft which drives a toothed rack member to an oscillating motion. Gear wheels connected to the journals mesh with the toothed rack member. Accordingly the expenditure in manufacturing the device is low and …
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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 October 10, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 10, 2006.
- 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.