Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7311803 | Distribution of a flowing medium Methods for uniformly distributing a flowing medium to a surface such as that of a rotary liquid permeable roll are disclosed where the flowing medium is distributed by a number of distribution units, the method including distributing the flowing medium to each of t... | 12/25/2007 |
| 7141139 | Multiple cleaning stages with various dilution points and accepts recirculated through a common pipe In a process and an arrangement for directing a papermaking pulp towards a regulated outlet (9), accept from successive cleaning stages (6, 14, 20) is totally or partly led towards the outlet (9) while excess accept is led in the opposite direct... | 11/28/2006 |
| 7005040 | Fabric support element for a papermaking machine A fabric support element for a papermaking machine has improved fluid drainage means, comprising openings which can include flow-through vents. The element can comprise an impingement shoe for a forming section of a papermaking machine. The openings can be defined b... | 02/28/2006 |
| 6338773 | Device for dewatering solid/liquid suspensions, especially pulp suspensions A device for dewatering solid/liquid suspensions, especially pulp suspensions, where the suspension is dewatered between two belts, with one dewatering zone being a wedge zone. A pair of rolls downstream of the wedge zone impart both area pressure and lin... | 01/15/2002 |
| 6319363 | Sheet forming system and method for controlling the same A sheet forming system of a paper or cardboard machine. A headbox includes a headbox nozzle with to laterally extending side panels and first and second nozzle walls extending along a width of the machine. First and second screens converge in a region adj... | 11/20/2001 |
| 6146500 | Suction breast roll former and method, with flexible headbox roof A suction breast roll former has a support surface with a plurality of apertures formed therein that are operatively connected to a vacuum source. A headbox has a flexible roof extending downstream from a slice opening and disposed adjacent to a support s... | 11/14/2000 |
| 6086718 | Apparatus for improving filler retention in papermaking An apparatus for improving retention of filler in papermaking systems includes a split stream feed to either the head box or fan pump of a papermaking system. The split stream divides the pulp flow into two streams, one stream having a retention aid and f... | 07/11/2000 |
| 5766419 | Twin-wire gap former in a paper machine A twin-wire gap former in a paper machine in which an outer wire and an inner wire are guided by guide rolls and by web forming members. The wires form a twin-wire zone which starts from a forming gap into which a slice part of a headbox feeds a stock sus... | 06/16/1998 |
| 5571383 | Method and device for transverse distribution of a flowing medium Methods and apparatus are disclosed for uniformly distributing a flowing medium flowing in a first direction in a conduit onto a surface so as to form a uniformly distributed medium thereon having a width greater than that of the conduit, the method inclu... | 11/05/1996 |
| 5409575 | Two-wire web-forming section of a paper machine A two-wire web-forming section for a paper machine includes two wire loops, consisting of a first wire (1) and a second wire (2), water draining therethrough from a web (W) to be formed in two directions within a two-wire dewatering zone established by th... | 04/25/1995 |
| 4717453 | Web forming device with rigid concave/convex pressure plate The device comprises a head box with a nozzle for applying a pulp suspension on a wire located below the nozzle. A pressure plate is located after the nozzle over the pulp suspension. The pressure plate comprises a concave formed portion, against which th... | 01/05/1988 |
| 4430159 | Twin-wire papermaking machine A twin-wire papermaking machine contains a region having two wires guided in mutual contact with one another and at which there is located at least one stock infeed device. The stock infeed device possesses the form of a box or cabinet member having an op... | 02/07/1984 |
| 4149930 | Method and apparatus for making asbestos-cement boards An improvement in the method and apparatus for fabricating asbestos-cement boards, wherein a felt band coated with fiber fleece is fed to a pair of press rollers in nip relationship and wherein the coating of the felt band with fiber fleece is effected by... | 04/17/1979 |
| 4074441 | Rotary through dryer having multiple vacuum chambers and associated heaters A fiber sheet manufacturing apparatus, such as a paper machine, is described, including a rotary through dryer for drying the sheet material on the same foraminous conveyor where it is initially formed. The dryer is provided with a plurality of separate v... | 02/21/1978 |
| 4024015 | Web-forming method and apparatus A web-forming method and apparatus particularly suited for cellulose pulp. The web is initially formed on a rotary wire cylinder which has a horizontal axis and a crest situated at the highest part of the cylinder over the horizontal axis, the cylinder du... | 05/17/1977 |
