Gas discharge arrester
CA 1287871 C · Owner: Reliance Electric Company · Inventors: Bonnesen, John S.; Sporer, Timothy J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A gas discharge arrester in which annular bands are attached to the inside surface of the arrester The, spacing between the bands is equal to or somewhat greater than the width of the inter-electrode gap. Each band is in contact with its associated electrode. The bands function to minimize the effect that placing the arrester in a metallic cup has on the symmetry of the electric field in the arrester, and, at the same time act to lower the impulse breakdown of the arrester.
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.