Snow compactor
CA 1071154 A · Owner: Watson, William D. · Inventors: Watson, William D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A machine for compacting in one series of operations up to a truckload of snow removed from city streets and the like. The machine has a hopper for receiving such snow, a compacting chamber and a hydraulically operated blade for compacting snow in the chamber. The compacting chamber is positioned below and to one side of the hopper whereby it is gravity fed. The chamber has opposite parallel, fixed sides on all but the blade and exit sides. The exit side is completely closed in by a gate. Means are provided to move the blade from a first position below and to the outer side of the hopper to a second position towards the exit gate of the chamber when in compacting action and from this second …
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 February 5, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 1997.
- 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.