Combination left and right handed furnace roof
CA 1332069 C · Owner: Siffer, Arthur Marvin · Inventors: Miner, Frank Henry, Jr.; Siffer, Arthur Marvin
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 combination left- and right-handed roof system adapted for use in electric arc or other furnaces having roof removal in either a clockwise or counterclockwise direction. The roof system is spray cooled by a coolant and includes a coolant drain system divided into at least two segments and having opposing inlets for receiving spent coolant. Two pairs of adjacent coolant outlets are provided for connection with a coolant collection pump depending upon the direction of roof removal and, each outlet in each of the pairs is associated with a different drain system segment. A removable U-shaped conduit connects the two outlets of the pair disconnected from the …
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 September 20, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 20, 2011.
- 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.