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 |
| 5826626 | Weft thread monitoring system in a circular loom A device for monitoring a weft in a circular loom where the weft is drawn-off from a bobbin of the weaving shuttle rotating along a circular path formed by a circular reed. The device includes a magnetic sensor stationarily arranged in a zone of the circu... | 10/27/1998 |
| 5365222 | Method and detector for detecting surface roughness or defects on coated wire or cable A method and detector are provided for accurately and continuously detecting surface roughness or oversize defects on coated wire or cable, such as magnet wire. This is achieved by passing the wire or cable through a die having an opening which is larger ... | 11/15/1994 |
| 5353610 | Device for controlling the feed of at least one yarn to a textile machine so as to compensate any pulling and excess tension exerted on the yarn A device for controlling the feed of at least one yarn (14) to a textile machine (15) and for compensating any pulling and excess tension exerted on said yarn (14) during said feed, the yarn (14) being unwound from a usual bobbin (16), comprises support m... | 10/11/1994 |
| 4455549 | Indication device A device for indicating the triggering of a signal transducer in, for example, thread surveillance and monitoring systems. In one device according to the present invention, the signal transducers are, on the one hand, coupled in series by means of lines b... | 06/19/1984 |
| 4233825 | Knitting machine Disclosed is an improved knitting machine in which special steps have been taken to provide for close correlation of the operation of the knitting filament in-feed equipment and the knitted fabric out-feed equipment with the speed of the knitting head its... | 11/18/1980 |
| 4171629 | Stop motion for knitting machines A new latch box for stop motion apparatus for knitting machines of the type wherein the stop motion acts to automatically stop the machine when there is an undesirable amount of excess tension in the yarn being fed to the machine. The new latch box is of ... | 10/23/1979 |
| 4137731 | Thread supply device for textile machine having common thread control and tension sensing element A thread supply device for a textile machine, such as a knitting machine, having a drive. The thread supply device includes a thread drum on which a thread issuing from a supply bobbin can be wound tangentially to form an intermediate thread supply and fr... | 02/06/1979 |
| 4047398 | Yarn guide finger for positive yarn supply apparatus A rotatable storage drum is connected for rotation to have yarn wound thereon. The pull-off position of the yarn is controlled by a yarn guide element which is a pin extending into the path of the yarn and forming an acute angle with a plane parallel to t... | 09/13/1977 |
| 4016732 | Filament monitoring device A filament monitoring device for knitwear manufacturing machines and of the kind having a filament guide arranged to move out of its operating position when a predetermined filament tension is exceeded and to be returned into the operating position with a... | 04/12/1977 |
| 4002044 | Yarn stop motion A process and apparatus for continuously supplying a textile machine, such as a circular knitting machine, with yarn under constant tension, the yarn being stored transiently and continuously in optimum amount on a negative feed drum type storage feeder, ... | 01/11/1977 |
| 3967471 | Automatic knitting yarn replacing apparatus In a knitting machine in which upon the application of abnormal tension to yarn, the yarn is released from a yarn engaging element and simultaneously the knitting machine is halted. A yarn replacing apparatus is provided comprising at least one vertical m... | 07/06/1976 |
