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| Number | Title | Issue Date |
| 6832464 | Plastics packaging A plurality of discrete packages (100) are manufactured from an indefinite length of gusseted packaging material (1). Each package (100) has an insert (9) inserted through an incision (8) in the packaging (1) which in use ma... | 12/21/2004 |
| 6626811 | Method and machine for working an elongate web of material In a method for working an elongate web of material, use is made of a machine which comprises a feeding device for feeding the web at a given speed and a cutting device for making cuts in the web. The cutting device comprises a rotary backing roll and a r... | 09/30/2003 |
| 6171226 | Plastic bag bundling system A process of serially dispensing and opening a bag from a bundle of bags includes providing a bundle of bags having at least a leading bag and a plurality of trailing bags. Tabs at the top of the bags fasten to a support and sever under a first force. A f... | 01/09/2001 |
| 5552101 | Method for manufacturing plastic case A method for making plastic case blanks is disclosed. A molten plastic material is passed through a nip of a first, preforming pair of molding cylinders to form a semi-solidified sheet having a first thickness, The semi-solidified sheet is then molded to ... | 09/03/1996 |
| 5094657 | Method and apparatus for continuously forming and sealing low density polyethylene bags at high speed A high speed method of manufacture of filled polyethylene pouches from polyethylene film comprising the steps of folding the film and causing it to move in folded flat form transversely sealing the film at longitudinally spaced intervals forming a continu... | 03/10/1992 |
| 5049117 | Dual-envelope making machine and method of using An envelope machine which makes two envelopes at once. One web is used up to a relatively advanced point in the envelope forming process to simultaneously form two envelopes. At a terminal portion of the envelope processing, the web is cut lengthwise to f... | 09/17/1991 |
| 4747815 | Collection of bags and method of preparing the same The present invention relates to a collection of ultra-thin bags and a collection of bags per se wherein said bags are made by providing two separated thermoplastic films; forming transversely across each separated film, lines of weakness extending from o... | 05/31/1988 |
| 4726804 | Method and apparatus for fabricating continuous envelopes A method and apparatus for fabricating continuous envelopes for use in connection with electronic data processing printers or the like is disclosed. The method and apparatus includes the steps of severing an advancing web along longitudinally spaced-apart... | 02/23/1988 |
| 4630310 | Off-set means for removing bags from connected plural rows A series of bags comprising at least two rows in side by side relationship is disclosed. Each row comprises a plurality of bags separable from the next by perforations between the bottom seal of one bag and the top lip of an adjacent bag. The rows are sta... | 12/16/1986 |
| 4500307 | Apparatus for producing continuous bags of thin wall material An apparatus and method for production of continuous bags of thin material with each of the bags having an opening on the side is disclosed.... | 02/19/1985 |
| 4300892 | Plastics bags production In the production of plastics bags, especially valved bags, from a web of plastics material by folding in the side margins of the web to form overlapping panels which are then longitudinally heat-sealed together for a major portion of one bag length, and ... | 11/17/1981 |
| 4091596 | Method of and apparatus for manufacturing envelopes A method of and a machine for the simultaneous forming of and stuffing of an insert into an envelope blanked from a paper web wherein the web is intermittently advanced along a first path, scored along preselected fold lines and notched at preselected spa... | 05/30/1978 |
