Methods and means for maintenance of road surfaces
CA 1138243 A · Owner: Kemanobel Ab · Inventors: Hove, Leo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved process for surface treatment of roads by separately applying a liquid asphalt binder and an aggregate is disclosed. The improvement consists in that the load distribution of the road is determined before the dosage of the binder and that the dosage of the binder is then effected in accordance with the results of said determination. Measurements for determination of the hardness, the temperature profile during a year and the roughness of the road surface are also carried out in order to more exactly determine the optimal amount of the binder. A device for the measurement of the transverse load distribution is also disclosed.
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 December 28, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 1999.
- 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.