Spring teeth
CA 1197129 A · Owner: Bruninghaus, Krupp Gmbh · Inventors: Hegemann, Fritz; Beihammer, Horst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spring tine for an agricultural implement for soil cultivation, composed of a bent spring blade having an upper end constituting a point of fastening for releasable attachment to the implement and having a lower end and, a carrier for the attachment of a working member for performing soil cultivation which causes a force to act on the tine along a line of action, the carrier being connected to the lower end of the spring blade and the spring blade having a cross section which varies over its length in such a manner that the axial area moment of inertia I of a cross-sectional plane, divided by one-half the blade thickness, is proportional to the linear distance of that cross-sectional …
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 26, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 26, 2002.
- 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.