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| Number | Title | Issue Date |
| 7367264 | Method and apparatus for treating sheets including a vacuum roller for retaining sheets in curved configuration An apparatus and method for retaining individual sheets of substrate in a curved configuration during coating or printing is disclosed. ... | 05/06/2008 |
| 7188631 | Suction device on a textile machine, especially a water needling device The inner circumferential surface of a suction pipe must be periodically cleaned as well as the inner region of the suction slit and especially the webs between the suction holes of the suction pipe. The aim of the invention is to facilitate said cleaning process. T... | 03/13/2007 |
| 7044307 | Drum type paper stock fine screen A drum type paper stock refine screen is provided which is capable of efficiently filtering a refined paper stock to the outside of a laterally suspended rotary drum and efficiently discharging foreign matter to the outside of the drum while rotating the drum. The d... | 05/16/2006 |
| 6592721 | Apparatus for dewatering a suction papermaking roll An air delivery device is provided for dewatering a suction roll in a paper machine by applying pressurized air to expel residual water or debris outwardly from through-holes. The air delivery device is positioned at a suitable circumferential position of... | 07/15/2003 |
| 6547932 | Doctor equipment in connection with a roll/cylinder in a paper/board machine The invention relates to a doctor apparatus (10) in connection with a roll (T) in a paper or board machine. The doctor apparatus (10) comprises a doctor beam (12) of lightweight construction and that the doctor beam (12) is arranged to pivot on bearing me... | 04/15/2003 |
| 6491791 | Apparatus and method for treating roll surfaces and/or fabrics A method is disclosed for cleaning roll surfaces on a paper-making machine or the like, particularly the grooves and drilled perforations of the rolls, and/or supported fabrics and/or for improving water drainage therein. According to the method, the prop... | 12/10/2002 |
| 5944956 | Surface-cleaning doctor for use in a papermaking operation and associated method A doctor system (20) and an associated method for cleaning the moving surface (30) of a papermachine component (22) which is begrimed or wetted by a paper web (28) moved around the surface utilizes an air nozzle (54) supportable in a stationary condition ... | 08/31/1999 |
| 5851358 | Paper making machine with an integral suction chamber and air/water separator for a doctor element The invention is directed to a paper making machine having a wet end associated with a wet fiber web. A forming fabric has a plurality of voids therein and carries liquid from the fiber web. A roll disposed at the wet end of the paper making machine carri... | 12/22/1998 |
| 5597449 | Method and device for conditioning the coating of a paper machine roll A method and device for conditioning a ceramic or metal-ceramic coating of a paper machine roll at its operating site. The roll is ground periodically by a grinding member mounted on a doctor of the roll. The grain size of the grinding particles in the gr... | 01/28/1997 |
| 5371126 | Processing aid for paper making Aqueous compositions and process aids useful in paper processing for quenching optical brighteners, particularly under alkaline paper production conditions. The process aids are aqueous compositions comprising (a) an acid addition salt or quartenization p... | 12/06/1994 |
| 5139618 | Cleaning device for paper machine rollers The device consists of a scraper consisting of a unit of two parallel blades (1) and (2) that diagonally incide on the surface of the roller or cylinder. The separation space forms a forced water circulation chamber with inlets (7) and outlets (8) that co... | 08/18/1992 |
| 5092961 | Apparatus for cleaning a porous cover An apparatus is disclosed for cleaning a porous cover of a press roll of a papermaking machine. The apparatus includes a hydrostatic bearing disposed adjacent to the porous cover, the bearing defining a concave surface for cooperating with porous cover. T... | 03/03/1992 |
| 4975150 | Method for preventing plugging of suction roll of paper machine and anti-plugging agent therefor A method for preventing plugging of a suction roll of a paper machine is described, which includes showering sealing water having incorporated therein from 10 to 500 ppm by weight, based on the sealing water, of malic acid on an inner wall of a shell of t... | 12/04/1990 |
| 4296886 | Shower fittings The invention relates to shower fittings especially those used in the paper and board making industries. The shower fitting incorporates at least one jet for directing on to a surface a jet of liquid which is suitable for cleaning and/or reconditioning th... | 10/27/1981 |
| 4240871 | Paper forming roll construction Paper forming roll comprising: a stationary pressure box; a rotatable foraminous shell extending around the box; paper making wire; spacing members extending between the box and shell, the spacing members being secured to the box; a plurality of circumfer... | 12/23/1980 |
| 4162936 | Washing device for impermeable areas of cylinder molds A continuous machine for the manufacture of fiber-containing materials such as paper, which comprises a rotating cylinder partly immersed in a body of liquid containing fibers in suspension. The surface of the cylinder comprises permeable and impermeable ... | 07/31/1979 |
| 4139412 | Multi-ply continuous paper web former A foraminous multi-zone wire mesh covered suction roll useful in a papermaking machine and in a multi-cylinder paper-making machine wherein the roll is divided into at least four discrete zones by generally radial divider elements and wherein at least a f... | 02/13/1979 |
