Material sensing assembly in a rotary press
CA 2076973 A1 · Owner: Nabisco, Inc. · Inventors: Wunder, Wiliam G. Sr.; Bliss, Eric M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
While rotary presses having plural die cavities in a rotary table (104) and plural punches (130, 132) cooperating to mold material in die cavities are known for feeding and pressing powder into tablets, such is not usually used for pressing rope-like strips of food material into tablets. The invention provides control means for use in such presses to sense the amount of material in cavities and thereby control the rate of movement of material to the cavities. This is achieved by sensing axial movement or flexing of plates (116 and 120) which drive punches (130 132) as an, indication of the amount of material in cavities.
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
- Filed March 1, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 1, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 2013.
- 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.