The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 1994
Filed:
Aug. 27, 1990
Harold R McGregor, Owatonna, MN (US);
Other;
Abstract
A vertical auger bottom-fill bag filling machine including a conical auger bowl depending from a cylindrical hopper on rocker arms, with the auger bowl being connected to the cylindrical hopper and a fill tube by flexible gaskets. A vertical auger shaft extends through the cylindrical hopper, auger bowl, and fill tube, with a section of flighting disposed within the auger bowl and fill tube to compress, de-aerate, and dispense the product. An agitator is mounted on the bottom of an agitator drive shaft which circumscribes the auger shaft and rotates independent thereof, the agitator having paddles which move the product and press the product downwardly in the auger bowl. An inverted venting cone is disposed within the auger bowl, with a vent tube extending upwardly and terminating proximate to the top of the cylindrical hopper. The inverted venting cone and vent tube are connected to the auger bowl to vibrate therewith, the vent tube surrounding and being spaced apart from the auger shaft and agitator drive shaft. The fill tube includes an enlarged upper section which permits the auger bowl to vibrate even though the diameters of the section of flighting and lower section of the fill tube are closely fitted. The vertical auger bottom-fill bag filling machine is incorporated into an automated bag filling system including a bag magazine, bag pickup and hanging mechanism, bag elevator assembly, bag weighing mechanism, bag conveyor, sealing station, and associated controls.