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 |
| 6601412 | Takedown unit for circular knitting machine A takedown unit includes a set of takedown rollers arranged around tubular fabric hanging downward from a needle cylinder of a circular knitting machine. The takedown rollers rotate to draw down the hanging tubular fabric, and a floating guide mechanism i... | 08/05/2003 |
| 6041482 | Apparatus and method for spreading and flattening a tubular fabric A tubular knit fabric descending from a knitting head is spread and flattened by a fabric spreader disposed within the fabric just above a pair of take-down rolls forming a nip through which the fabric passes. The spreader comprises a generally flat frame... | 03/28/2000 |
| 6016670 | Circular knitting machine having a constant takedown assembly A circular knitting machine including a takedown assembly for applying constant tension to the formed knitted fabric. The circular knitting machine includes a rotating knitting cylinder, a takedown assembly, and a fabric receiving tub. The takedown assemb... | 01/25/2000 |
| 5809804 | Sliver knitting machine card unit and air nozzle A circular sliver knitting machine comprising an air supply unit for supplying air to the circular sliver knitting machine. A first air nozzle unit cooperating with a card unit for directing air along a path generally radially outward toward the knitting ... | 09/22/1998 |
| 5685176 | Circular sliver knitting machine A circular sliver knitting machine comprising an air supply unit for supplying air to the circular sliver knitting machine. A first air nozzle unit cooperating with a card unit for directing air along a path generally radially outward toward the knitting ... | 11/11/1997 |
| 5577402 | Positioning gauges for a circular sliver knitting machine A first and second indexing gauge for use in positioning air blowing units relative to the needles of a circular sliver knitting machine. An air blowing unit is attached to the machine so as to be both vertically and rotationally adjusted relative to the ... | 11/26/1996 |
| 5546768 | Circular sliver knitting machine having a manifold for controlling multidirectional airflow A circular sliver knitting machine having a manifold for controlling multidirectional airflow. The manifold includes a first and a second air nozzle unit for directing air onto the plurality of needles from radially opposed sides. The manifold includes a ... | 08/20/1996 |
| 5497531 | Manifold for use with a circular sliver knitting machine An apparatus and method for knitting sliver fabric on a circular sliver knitting machine. An air blowing unit is attached to the machine so as to be oriented radially inward from the knitting cylinder and a card unit so as to blow air radially outwardly t... | 03/12/1996 |
| 5460016 | Method and apparatus for forming reverse loop sliver knit fabric An apparatus and method for knitting sliver fabric on a circular sliver knitting machine. An air blowing unit is attached to the machine so as to be oriented radially inward from the knitting cylinder and a card unit so as to blow air radially outwardly t... | 10/24/1995 |
| 5431029 | Method and apparatus for forming reverse loop sliver knit fabric An apparatus and method for knitting sliver fabric on a circular sliver knitting machine. An air blowing unit is attached to the machine so as to be oriented radially inward from the knitting cylinder and a card unit so as to blow air radially outwardly t... | 07/11/1995 |
| 5134863 | Circular sliver knitting machine having increased carding capacity There is disclosed an improved circular sliver knitting machine having increased carding capacity for increasing the amount of sliver which can be carded and fed into the knitting machine. A mounting ring is fixed on an upper bed plate fixed to the sliver... | 08/04/1992 |
