Seed planter
CA 1270153 C · Owner: Typpi, Richard M. · Inventors: Typpi, Richard M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A trailer-like apparatus adapted to be towed by a farm implement for depositing seed from a supply hopper into the ground at a controlled spacing substantially independent of the vehicle's relative ground speed. In a first embodiment, an endless chain having pockets for receiving individual seeds from a supply hopper affixed to predetermined lengths of the chain is driven by a sprocket wheel which is in turn, belt-, coupled to a ground-engaging towed wheel of the vehicle. The chain is longitudinally aligned rearward of a disk-like colter which digs the trench into which the seeds ultimately fall and the trench is then closed as the vehicle's frame supporting wheels pass by the trench. Means …
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 June 12, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 2007.
- 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.