Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 4583266 | Process for preparation of discontinuous filament bundles and sharp-ended filaments A process for the preparation of discontinuous filament bundles, which comprises applying a drawing force and/or a shearing force to a bundle of continuous filaments while or immediately after contacting the bundle of continuous filaments with a medium ma... | 04/22/1986 |
| 4021520 | Process for the manufacture of filament yarn having protruding filament ends A process is provided for the manufacture of filament yarns having fine protruding filament ends, which comprises subjecting filament yarns, wherein at least part of the filaments consist of polymers the lateral bending resistance (Knickscheuerbestandigke... | 05/03/1977 |
| 3995004 | Process for the manufacture of filament yarn having protruding filament ends A process is provided for the manufacture of filament yarn having protruding filament ends on the basis of synthetic high polymers by melt spinning of the polymers through spinning nozzles, which comprises subjecting the multifilaments still hot after hav... | 11/30/1976 |
| 3953161 | Apparatus for manufacturing synthetic tow for stretch-cut spinning process Apparatus for manufacturing synthetic tow for stretch-cut spinning process. This synthetic tow is produced by changing the coagulation condition after delivery from the spinnerets so the weak points are distributed in individual filaments in a particular ... | 04/27/1976 |
