Flash array having shielded switching circuit
CA 1073877 A · Owner: General Electric Company · Inventors: Cote, Paul T.; Zukowski, Edward C.; Blount, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multiple flash lamp array contains a sequentially switching lamp flashing circuit in the form of a printed circuit on a surface of a circuit board. A metal shield is provided over the other surface of the circuit board to reduce the possibility of accidential flashing of lamps by electrostatic voltage, which flashing tends to occur particularly when high voltage types of lamps are used in the array. Preferably, the shield is connected electrically to a lead-in wire of each lamp in the array and also is, connected electrically to a conductive reflector member positioned near the other side of the circuit board from the shield.
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 March 18, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 18, 1997.
- 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.