Beta Raven Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5402352 Pellet mill controller with automatic setting of start valuesExpiredFeb 22, 93Mar 28, 95[G06F]
5333757 Hoist for retracting a liner from a bulk bag as material is dispensed therefromExpiredDec 24, 92Aug 02, 94[B65D]
5332311 Liquid scale and method for liquid ingredient flush thereofExpiredOct 09, 91Jul 26, 94[B01F]
5328015 Auger assembly for feed binExpiredMay 10, 91Jul 12, 94[B65G]
5306876 Batch weighing apparatus with bulk bag type binsExpiredMay 10, 91Apr 26, 94[G01G]
5284388 Receiver with dust collector for bulk dry ingredientsExpiredOct 09, 91Feb 08, 94[B01F]
5257725 Bulk bag support frameworkExpiredMay 10, 91Nov 02, 93[B67D]
5215251 Water controllerExpiredOct 09, 91Jun 01, 93[G05D]
5141135 Bracket assembly for agitating a bag containing bulk dry materialExpiredDec 18, 90Aug 25, 92[B65D]
5035294 In place bin weighing device for batch weigherExpiredJan 30, 90Jul 30, 91[G01G]
4955270 Dry flow sensorExpiredMay 30, 89Sep 11, 90[G01F]
4935874 Method and apparatus for controlling steam in a pellet millExpiredJan 26, 88Jun 19, 90[F23N, G06F]
4882105 Method of automatically controlling an extruderExpiredAug 26, 88Nov 21, 89[B29C]
4833377 Current leakage reduction circuitExpiredDec 28, 87May 23, 89[H02P]
4767301 Automatic control for an extruderExpiredNov 09, 87Aug 30, 88[B29C]
4764874 Method and apparatus for a microprocessor pellet mill controller with die temperature controlExpiredSep 15, 86Aug 16, 88[G06F]
4751030 Pellet mill controller with automatic differential temperature selectionExpiredNov 20, 86Jun 14, 88[B29C]
4742463 Method and apparatus for a pellet mill controller with die temperature controlExpiredDec 24, 85May 03, 88[G06F]
4729899 Method for controlled fat injection with steam in a pellet millExpiredMay 04, 87Mar 08, 88[A23P]
4725958 Pellet mill controller with non-contacting temperature sensorExpiredDec 17, 85Feb 16, 88[G06F]

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