Method and apparatus to uniformly feed plug flow material from storage to a line operation
CA 1303570 C · Owner: Sprout-Bauer, Inc. · Inventors: Foresman, James D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An inlet device comprises an inlet chute an inlet hop-, per pan and two blades in counter rotation above the flights of a plug screw feeder. The blades are housed in a pan which sealingly connects to a cast plug screw liner which is a U-shaped trough for the plug screw. The blades are driven by shafts supported in pillow block bearings fastened to a main housing. The main housing holds a gear train driven by a right angle gearmotor. The gearmotor is also mounted on the main housing and drives abutting gears in counter rotation above the flights of the plug screw. A storage bin, reservoir, worm conveyor or some type of pulsating feeding arrangement feeds directly into the instant inlet …
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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 June 16, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 2009.
- 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.