Optical sensor for the detection of ice formation and other chemical species
CA 1287900 C · Owner: Fiberchem, Inc. · Inventors: Klainer, Stanley M.; Milanovich, Fred P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure An ice sensor for the remote rapid indication of ice formation or the presence of ice is a fiber optic "switch", activated by ice but not by water and based, on the difference in optical properties between water and ice. The approach is to construct a "fiber optic" which itself is the ice sensor. The fiber optic sensor (FOS) is designed so that no light is transmitted when water is present but as soon as ice begins to form light, is relayed. Thus ice switches on the light. In addition, limited quantitative information can be made available on the rate of ice formation. Alternatively the sensor can be formed of another type optical waveguide instead of an optical …
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 August 20, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 20, 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.