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Frievalt
Curt Frievalt, Green Bay, WI US
| Patent application number | Description | Published |
|---|---|---|
| 20080295459 | Vertical Pouch Making Machine and Method of Making Pouches - A vertical form fill and seal continuous pouch machine includes a forming tube having a cross section area of CA is disclosed. A film tube is continuously formed about the forming tube and fed downward. A horizontal sealing assembly includes at least one pair of opposing sealing bars that make horizontal seals on the film, thereby forming pouches. The horizontal seals are formed in a horizontal sealing zone, and the vertical distance from a lower end of the forming tube to the center of the horizontal sealing zone is a transition distance that is (in inches) preferably no more than 0.5 multiplied by the cross-section area (in sq inches). | 12-04-2008 |
Curt A. Frievalt, Chesapeake, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20100086241 | Method And Apparatus For Making Bags - A drawtape bag includes a generally closed bottom, a generally open top, and closed sides connecting the bottom and the top. A drawtape hem, with a drawtape therein, is disposed along the top. There are a plurality of knockouts within the hem. A method and machine for of making such a drawtape bag includes forming at least two notches in the film with a notch section, and forming a plurality of knockouts in the film with a knockout section. A drawtape hem is formed in a drawtape section, which also inserts a drawtape. | 04-08-2010 |
Curt A. Frievalt, Green Bay, WI US
| Patent application number | Description | Published |
|---|---|---|
| 20090241478 | Vertical Form, Fill and Seal Packaging System - A method and apparatus for continuously or intermittently and vertically forming, filling and sealing packaging includes an infeed section, a pleating assembly, a forming tube and a sealing assembly. The pleating assembly imparts at least one pleat to the film. The film may be driven and measured at a nip following the pleating. The forming tube receives the film from the infeed section after the pleat has been made. A film tube is formed about the forming tube. The film tube is vertically fed downward to the sealing assembly which imparts seals to the film tube, thereby forming packages. A hole punch punches holes in the film tube. The film travels a film path that includes the hole punch, the forming tube, the vertical seal assembly and the horizontal seal assembly. | 10-01-2009 |