Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 6139482 | Bulk bag or liner and method of making it A method of making flexible and collapsible bulk bags or liners for bulk bags or containers from individual flat panels of material, or tubes of material folded flat, is disclosed. The bags or liners have one or more sidewalls interconnected by at least a... | 10/31/2000 |
| 5618255 | Method for manufacturing a baffle liner A method for manufacturing a liner having baffles therein for use in flexible bulk containers, having the steps of: positioning a baffle strip of thermoplastic material adjacent to a continuous sheet of thermoplastic film; heat sealing the baffle strip to... | 04/08/1997 |
| 5468330 | Apparatus for manufacturing a disposable vacuum cleaner bag The present invention relates to an apparatus and method of manufacturing vacuum cleaner bags with a unique tri-lock top and bottom seal. The paper end of at the end of the open bag length is sealed onto itself with seam-paste glue three times providing a... | 11/21/1995 |
| 5370598 | Method of making reusable vacuum bag A reusable silicone vacuum bag is manufactured by making a silicone vacuum bag envelope having peripheral edges. The bag envelope is spread so that the peripheral edges frame the envelope. FEP is bonded to an area bordering the peripheral edges. The bag e... | 12/06/1994 |
| 4723742 | Sandbag support An integral support is provided incorporating a pair of horizontally spaced-apart, horizontally opening and edge upstanding panel member-like U-shaped members. The U-shaped members open in the same horizontal direction and a connecting panel portion exten... | 02/09/1988 |
| 4665680 | Method of making extruded plastic holder for handled bags An extruded cylinder of plastic material having open ends and die-cut flaps on opposite sides is a supporting holder for limp plastic bags. The holder is formed by an inexpensive process of extruding plastic and cutting the tube into cylinders of the prop... | 05/19/1987 |
| 4512788 | Top loading upright vacuum cleaner bag and method of manufacturing the same A vacuum cleaner bag for use with top loading vacuum cleaner has a first collection tube and a second transfer tube, the tubes having communicating apertures near the top thereof, with a thermoplastic coating on the inner walls of the second transfer tube... | 04/23/1985 |
| 4115909 | Reinforcing insert for collapsible packages A cardboard insert for reinforcing collapsible packages, such as see-through plastic bags, is formed from a onepiece blank in which a number of panels are separated by score lines. The panels are sized and shaped to define the desired form, generally a ri... | 09/26/1978 |
