Mixer block for use in rotary drums
CA 1110846 A · Owner: Bethlehem Steel Corporation · Inventors: Sunnergren, Carl E.; Simms, John K.; Brinker, Dale W.
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 mixer block used in rotary drums to improve the efficiency of mixing, drying, cooling, heating or calcin-, ing of solid materials such as gravel stone, fluxes and the, like to produce a more uniform product with minimal production of fines and dust is described. The mixer block is especially useful when used as part of the refractory linking in a rotary kiln to calcine fluxstone such as limestone dolomite, dolomitic limestone, magnesite and the like. -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 October 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 1998.
- 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.