Apparatus for reclaiming and purifying chlorinated fluorocarbons
CA 1311209 C · Owner: Lofland, Spencer G. · Inventors: Lofland, Spencer G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, The invention is a device for recovering contaminated chlorinated fluorocarbons (CFCs) from refrigeration apparatus, and purifying them for reuse. The CFC can be received in either vapor or liquid state, and is distilled and purified first in vapor state. The vapor is then superheated, compressed and condensed to a liquid state and is further purified in the liquid state. Heat of the condensed liquid stream is applied to help vaporize incoming CFC to heat the vapor so as to prevent recondensation, and to superheat the vapor prior to compression.
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 8, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 8, 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.