Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 6974406 | Side-sealed bag having label section and method of production therefor The present invention provides an improved side-sealed bag comprising an open, mesh-like fabric and a label section. The bag has a closed end formed by a fold in the fabric, an opposing end and longitudinal, heat-sealed side seams extending from the closed end to th... | 12/13/2005 |
| 6663550 | Smoothing device for flat printing materials A smoothing device includes guide surface sections for a flat printing material whose leading edge is pulled in a direction of travel over the guide surface sections. The guide surface sections have openings which communicate with throttling ducts that ar... | 12/16/2003 |
| 6632162 | Method of making tray liners for item storage containers A method for making recessed tray liners for storing objects in a storage container is disclosed. The first step in the method is to size a structural thermoplastic foam liner to fit within a tray. The foam liner is preferably a foamed polyethylene plasti... | 10/14/2003 |
| 6602174 | Method and apparatus for sealing a drawtape to a hem of a thermoplastic film structure A method and apparatus for sealing a drawtape to a hem of a thermoplastic film structure is disclosed. The thermoplastic film structure includes a panel, the hem, and the drawtape. The hem is formed along one end of the panel, and the drawtape is housed w... | 08/05/2003 |
| 6038839 | Longitudinal seam sealer for polyethylene material A form-fill-seal machine in which a heated longitudinal seam sealer continuously forms a longitudinal lap seam along lapped edges of the tube being formed. This longitudinal lap seam sealer can be used in machines having conventional cross sealing jaws as... | 03/21/2000 |
| 4957581 | Method and apparatus for centering tubes To prevent an end of a filled container, upon heating by a hot air for subsequent welding of edges thereof, from coming into contact and sticking to a retainer, a centering gas such as, for example, air is supplied from an external source to the container... | 09/18/1990 |
| 4881933 | Draw tape bag forming method and apparatus A draw tape bag is formed from a plastic web. An edge folding unit, a notching unit, a tape inserting unit, a heat sealing unit and a web folding unit form a compact continuous line in a rectangular path. The hem folder includes a L-shaped plate within th... | 11/21/1989 |
| 4881931 | Hem seal for draw tape bags Apparatus and methods for manufacturing draw tape bags from a web of plastic material are disclosed. The apparatus and methods relate to draw tape bags in which a hem seal, enclosing the draw tape, is formed in the bag without stopping the movement of the... | 11/21/1989 |
| 4820249 | Multiple seam forming apparatus for continuously running webs A draw tape bag apparatus passes a web of plastic material having edge notched hems in the opposite edges to receive closing tapes. A hem sealer unit seals the folded layers of the web longitudinally of the folded edge to form the hem. The sealer unit inc... | 04/11/1989 |
| 4384914 | Arrangement for welding bags An arrangement for welding multi-ply staggered bags has two guiding elements for guiding a multi-ply material so that the inner ply is staggered with itself and one part of the inner ply is staggered on another part thereof, a heating aggregate which supp... | 05/24/1983 |
| 4308087 | Slit sealing apparatus A method for dividing an extruded tube into a plurality of smaller tubes is disclosed. The method includes the steps of flattening the tube into a web, sealing one or more longitudinal strips, or paths, along the web, and cutting generally the middle of t... | 12/29/1981 |
| 4106261 | Method of forming, filling, and sealing scrim reinforced plastic bags A composite web comprised of free standing (non-blocked) plies is prepared with precisely even linear amounts of each ply, based on the principle of using a carrier ply of preferably heavy gauge plastic film. The carrier ply under controlled tension, is t... | 08/15/1978 |
| 4062718 | Heat sealing means Efficient heat sealing, particularly of thicker and/or heat shrinkable plastic materials, is obtained using a fluid heated and cooled heat-sealing member having a body of a material of low thermal conductivity and a strip of material of high thermal condu... | 12/13/1977 |
| 3953272 | Process for end sealing a bag and apparatus therefor Superimposed heat-sealable layers are heat-sealed by applying external suction to draw the layers apart, inserting a nozzle between the parted layers, directing hot gas from the nozzle onto the inside surfaces of the layers, removing the nozzle and pressi... | 04/27/1976 |
| 3951050 | Tube forming process The invention provides a continuous process for producing tubes from sheeting coated on at least one face with a heat sealable composition that melts at a lower temperature than the sheeting itself. The process essentially comprises the steps of supplying... | 04/20/1976 |
