Apparatus and method for reclaiming waste oil
CA 1309370 C · Owner: Patent Holdings Ltd. · Inventors: Shurtleff, Edward C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and a method are provided for reclaiming a useful oil product from waste oil such as used, lubricating oil. The apparatus comprises an oil feed means a boiler, a heater and separating means. The heater is used to heat the waste oil in the boiler to a temperature such that lighter hydrocarbons of the waste oil volatilize but, such that heavier hydrocarbons remain unvolatilized trapping contaminants therewith. The separating means separates the volatilized lighter hydrocarbons from the unvolatilized heavier hydrocarbons and contaminants.
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 October 27, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 27, 2009.
- 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.