Vehicle-mounted spray apparatus
CA 1281309 C · Owner: E.D. Etnyre & Co. · Inventors: Dalton, William J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a vehicle with a power source for moving said vehicle and for spreading liquid material on a road surface a material distributing apparatus is provided which includes means for automatically maintaining a constant application rate of the material to the road surface in response to changes in the width of the application pattern. The means includes a first portion which is responsive to the power source for providing a controlled rate of flow of the liquid material from the tank of the distributing apparatus to a discharge element of the apparatus and onto the road surface so as to maintain a constant rate of application for the material despite changes in the speed of the vehicle. A …
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 March 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 2008.
- 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.