Gas tube tester
CA 1045674 A · Owner: Reliable Electric Company · Inventors: Japenga, Ronald 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, The embodiment of the invention disclosed herein is directed to a gas tube tester which provides a pair of terminals for connection to the external electrodes of a cold cathode gas discharge tube. The tester includes one circuit for applying a progressively increasing voltage across the discharge tube so that the breakover voltage of the tube can be determined, this breakover voltage being registered on a meter. A second circuit is provided for testing the leakage current of the gas discharge tube within predetermined limits. A leakage current corresponding to a one megohm internal resistance is sufficient to render conductive a programmable silicon controlled …
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 January 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 1996.
- 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.