Arc gouging flow switch
CA 1082779 A · Owner: Union Carbide Corporation · Inventors: Grose, Douglas A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An arc gouging system including an arc gouging torch holding an electrode, a power supply including a contactor, a source of compressed gas, a cable for carrying electric current from the power supply to the torch for establishing an arc between the electrode and the workpiece and a conduit for delivering compressed gas from the compressed gas source to the torch the, torch including a gas valve for controlling the flow of gas through the torch, wherein a flow switch is mounted in the power supply and connected to the conduit the flow switch being adapted to energize the contactor when the gas valve is open and to de-energize the contactor when the gas valve is closed. -1-
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 July 29, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 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.