Slide gate valves
CA 1092322 A · Owner: Uss Engineers And Consultants, Inc. · Inventors: Hind, Robert D.; Weatherall, Philip; Watts, Norman H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A slide gate valve for use with a molten metal teeming vessel as provided with elongated spring support means that may be in the form of leaf springs or the like, and are, operative to resiliently bias the slide plate of the valve against the head plate thereof. The spring support means are arranged to be releasably secured to the linkages which attach the valve to the vessel to facilitate disassembly for valve servicing.
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 December 30, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 30, 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.