Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 6823904 | Metering installation for powder pigments The invention relates to a metering installation for powder pigments, having an arrangement for supplying the powder pigments into a weighing container of a weighing arrangement. The weighing container may be emptied into a pneumatic conveying conduit which leads in... | 11/30/2004 |
| 6546973 | Equipment for filling flexible container with viscous material. The present invention is a system for filling a container main body at least whose drum body is made of a flexible film, with a viscous material. A viscous material is charged by the charging means into container main bodies conveyed by the container conv... | 04/15/2003 |
| 6463968 | HIGH-CONSISTENCY LIQUID FILLING SYSTEM FOR SOFT VESSEL AND TUBULAR MEMBER, AS VESSEL, TRANSPORTING SYSTEM AND HIGH-CONSISTENCY LIQUID FILLING SYSTEM AND METHOD OF FILLING HIGH-CONSISTENCY LIQUID INTO SOFT VESSEL AND DEVICE AND VESSEL FOR FILLING HIGH-CONSISTENCY LIQUID The present invention is a system for filling a container main body at least whose drum body is made of a flexible film, with a viscous material. A viscous material is charged by the charging means into container main bodies conveyed by the container conv... | 10/15/2002 |
| 6312151 | Bulk bag pre-conditioner An apparatus is provided for pre-conditioning the materials in a bulk bag to effect easier unloading of the materials. A frame is provided with an open space for receiving the bulk bag. A series of spaced-apart, opposing breaker bars is provided for autom... | 11/06/2001 |
| 5327947 | Vertical auger type bag filler having a vibrating bowl with inverted venting cone and rotating agitator assembly 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 e... | 07/12/1994 |
| 5271439 | System for unloading powdered or granular materials A system for unloading powdered or granular materials from a container made of flexible material, the system including a line supplying compressed gas to the interior of the container to fluidize the material in the container, and a delivery conduit which... | 12/21/1993 |
| 5117750 | Compactor A compacting apparatus is provided for compressing material within a flexible bag including a pair of compression rollers which move from an upper to a lower position within the apparatus while contacting the bag. Vertically extending guide rails are prov... | 06/02/1992 |
| 5113918 | Vertical bottom-fill auger assembly A vertical bottom-fill auger assembly including a bottom-fill auger bowl containing an internal rotating agitator or wiper element, and a vertical moving carriage or bag handling mechanism including a traveling bag settler. The vertical movement of the ca... | 05/19/1992 |
| 4944334 | Vibrating hopper and auger feed assembly A vibrating hopper and auger feed assembly including an infeed auger which transfers product from a main storage bin to a live bottom hopper, the live bottom hopper having a vibrating bottom pan and discharge spout, an inverted pressure cone which is cent... | 07/31/1990 |
| 4084390 | Apparatus for packaging bulk material A method and apparatus for packing of bulk materials. The bulk material is measured in portions and dispensed into a fill pipe. Suction probes are provided for evacuating the entrapped gas from the bulk material while in the fill pipe. The fill pipe is th... | 04/18/1978 |
