Adherent coating for entrapping contamination particles in gas-insulated electrical apparatus
CA 1135394 A · Owner: Westinghouse Electric Corporation · Inventors: Dixon, George D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
46,986, -1-, ADHERENT COATING FOR ENTRAPPING CONTAMINATION PARTICLES IN, GAS-INSULATED ELECTRICAL APPARATUS ABSTRACT OF THE DISCLOSURE, A tacky or sticky coating is provided on selected surface areas inside compressed gas-insulated systems to trap conducting and semiconducting particles which if, allowed to remain free, can promote breakdown between metallic parts or electrodes maintained at different potentials, or which may initiate tracking and flashover along insulating surfaces. The initially hard dry coating is, comprised of a binder component and an active component. The binder component is chemically inert to both the insulating gas within the apparatus and a solvent vapor while, …
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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 November 9, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 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.