Class 162/370 - Plural suction areas

Subclass of Class 162 - Paper making and fiber liberation
Definition: Apparatus in which plural discrete chambers or a single
No. of patents: 39
Last issue date: 05/06/2008

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
7300553	Arrangement for a wire section of a paper or board machine A web is formed between two wire loops (13, 14), in a wire section of a paper or board machine, in connection with which dewatering elements (12, 17, 15, 28) are placed and in which water is drained from a stock suspension from between the two wires (	11/27/2007
6986831	Suction roll of a paper machine A paper machine suction roll has a perforated shell (10) and a static suction box (11) sealed against the inner surface of the shell (10) to create a suction zone (11a) on the roll surface as it rotates. Holes (14) extending...	01/17/2006
6733634	Apparatus, system and method for transferring a running web An improved system, apparatus and method is disclosed for transferring a running web from a first carrier fabric to a second carrier fabric in the manufacture of webbed products, such as tissue, paper toweling, and the like. A multi-stage vacuum process applies a va...	05/11/2004
6682632	Roll for a paper or board machine The invention relates to a roll for a paper or board machine comprising axle journals on whose support the roll is arranged to revolve, end flanges with which the axle journals are connected, and a mantle which is connected with the end flanges. The mantl...	01/27/2004
6585139	Draw roller for strip material Draw rollers for striplike materials (especially paper or cardboard strips, plastic or metal foils), having a sheath (1) that can rotate around a fixed inner component, whereby said sheath is provided with air holes along the entire surface thereof, are a...	07/01/2003
6402896	Roll for a paper or board machine The invention relates to a roll for a paper or board machine comprising axle journals on whose support the roll is arranged to revolve, end flanges with which the axle journals are connected, and a mantle which is connected with the end flanges. The mantl...	06/11/2002
6328194	Device for handling a material web Device for handling a material web that includes a suction roll having a perforated jacket, and a porous support belt guided over the suction roll between a take-on region and a lift-off region. A surface of the porous support belt is adapted to guide the...	12/11/2001
6254732	Method for loading a seal of a suction roll and a sealing construction thereof A sealing construction for loading a seal against a suction roll in a paper machine includes a seal having a wear surface, side surfaces and a lower surface. The seal is fitted from its holder to the structure of a suction box which is inside the suction ...	07/03/2001
5961785	Machine for manufacturing a continuous material web A machine for manufacturing a continuous material web, in particular a paper or cardboard web, with at least one perforated cylinder sleeve and a suction roll exhibiting a manhole around which the material web is guided preferably with the aid of a transp...	10/05/1999
5925220	Suction roll of a paper machine having a noise damping chamber A suction roll for a paper machine or the like including a perforated annular roll shell which is rotatable. A stationary suction box inside the roll shell with respect to which the shell rotates. The suction box is defined between two circumferentially s...	07/20/1999
5635034	Suction roll or cylinder and method for removing air from a suction roll or cylinder A method for removing air from a suction roll/suction cylinder and a suction roll/suction cylinder including a roll mantle, end flanges connected to the roll mantle and axle journals for revolvingly supported the roll mantle. The mantle has numerous perfo...	06/03/1997
5580424	Apparatus and method for sealing a suction box of a suction roll in a paper machine A sealing construction for a suction box of a suction roll in a paper machine and a method for sealing a suction roll in which a seal is arranged in a holder and loading members, preferably at least one loading hose, are arranged between the holder and th...	12/03/1996
5456802	Threading vacuum sheave for a tissue calender A vacuum/blowing sheave on the end of the lower calender roll of a papermaking machine threads a tissue web tail from a Yankee dryer to a take-up reel through the calender. The sheave is positioned adjacent to the outlet of the threader tube from the Yank...	10/10/1995
5281308	Pick-up roll apparatus A pick-up roll apparatus is disclosed for picking up a tail of a web from a forming wire and for transferring the tail to a press felt wrapping around a portion of the apparatus. The apparatus includes a perforate rotatable shell which is disposed adjacen...	01/25/1994
5135614	Suction roll for a paper making machine and a method for producing a desired pressure profile for the suction roll The invention concerns a suction roll (10) for a paper making machine, on which the paper web is pressed towards the outer face of the roll mantle. The suction roll (10) is divided, in the axial direction of the roll, into at least three vacuum spaced (A	08/04/1992
5104489	Cylinder for the guiding of endless webs of material A hollow cylinder exhibits an internal body, which forms a sickle-shaped space by means of a partial cylindrical surface arranged eccentrically to the hollow cylinder, with a smaller radius than its internal radius. In this space there is created a vacuum...	04/14/1992
5084985	Drying section in a paper or board machine and method for guiding a web therein In the drying section of a paper or board machine, a web travels in a meander-like fashion around drying cylinders and it is provided with ducts for delivering web-run stabilizing suction into the drying section. At least one cylinder is provided with duc...	02/04/1992
5074966	Gap former in a paper machine A gap former in a paper machine, comprising a lower wire loop (10) and an upper wire loop (20), which together define a substantially horizontal twin wire forming zone, which comprises the following web forming zones (a), (b) and (c): (a) In the area of t...	12/24/1991
5059286	Cylinder for the guiding of endless webs of material A hollow cylinder exhibits an internal body, which forms a sickle-shaped space by means of a partial cylindrical surface arranged eccentrically to the hollow cylinder, with a smaller radius than its internal radius. In this space there is created a vacuum...	10/22/1991
5022163	Method and device for drawing a web through a group of drying cylinders A method in a drying group or groups provided with a single-wire draw in a multi-cylinder dryer of a paper machine in the draw of a web. The multi-cylinder dryer comprises drying cylinders heated by means of steam or equivalent, with the web being pressed...	06/11/1991
5020242	Guide roll for a porous belt A guide roll for a porous belt, for instance for the drying wire of a paper machine, is described. A perforated roll shell rotates about a stationary air guide box. The guide box has two air chambers which extend across the length of the guide roll. One a...	06/04/1991
5015336	Felt turning suction roll A felt turning roll for use in the dryer section of a papermaking machine has a stationary shaft extending outwardly from at least one end of a perforated roll shell. The stationary shaft extends inwardly from the end of the roll for only a short distance...	05/14/1991
4980979	Vacuum roll transfer apparatus A vacuum roll transfer apparatus is disclosed for drying a web extending through a single tier dryer section of a paper machine. The apparatus includes a rotatable perforate shell having a first and a second end. A stationary duct is disposed within and a...	01/01/1991
4932138	Method and device for threading a web around drying cylinders Method and device in a drying group or groups provided with a single wire draw, in a multi-cylinder dryer of a paper machine for securing the threading of the web. The multi-cylinder dryer has drying cylinders heated by steam or equivalent, with the web t...	06/12/1990
4923568	Dewatering zone in a papermachine A joint dewatering zone of wires for dewatering a web to be formed in a two-wire papermachine having a first wire loop and a second wire loop, includes a first forming roll which is situated inside the second wire loop and other dewatering means which are...	05/08/1990
4905379	Intermediate vacuum roll for dryer A single tier dryer section apparatus is disclosed for drying a web extending through a paper machine. The apparatus includes a first dryer and a dryer felt extending around the first dryer such that the web is disposed between the felt and the first drye...	03/06/1990
4838982	Patch applicator vacuum cylinder for web material An applicator for applying patches to a traveling web, such as in a bag forming machine, includes a vacuum cylinder with an outer perforated sleeve, an inner slotted sleeve and a stationary core with shaped pressure chambers for applying patches cut from ...	06/13/1989
4683059	Vacuum breaker valve-discharge elbow assembly for rotary drum filters A rotary drum filter of the pipe machine type has a stationary vacuum breaker valve-discharge elbow assembly at the discharge end of the drum which defines a streamlined, smoothly curving, and substantially unobstructed discharge flow passage with gradual...	07/28/1987
4608171	Adjustable mounting for valve-discharge elbow of rotary drum filters A vacuum breaker valve-discharge elbow assembly for a rotary drum filter of the pipe machine type is adjustably mounted to the drive gear housing for the filter via a separate mounting plate. A valve flange is secured to the mounting plate. The mounting p...	08/26/1986
4608170	Angularly adjustable breaker valve-discharge elbow for rotary drum filters A vacuum breaker valve-discharge elbow assembly for a rotary drum filter of the pipe machine type is adjustably mounted to the drive gear housing for the filter via a separate mounting plate. A valve flange comprising a separate clamping ring clamps the v...	08/26/1986
4459175	Longitudinal wire papermaking machine A longitudinal wire papermaking machine is disclosed wherein the longitudinal wire is guided in a dewatering region, following a pre-dewatering path, out of a wire plane downwardly over a deflection element and then upwardly over a downwardly domed or arc...	07/10/1984
4443300	Paper making machine with a filter cylinder A paper making machine contains a filter or screen cylinder and an external filter or wire guided over guide rolls, the external filter or wire being trained about the filter cylinder. The stock suspension is introduced by means of a free jet-headbox betw...	04/17/1984
4354902	Flowbox system for wet-laying a multiply fibrous web A pair of enclosed explosion chamber flowboxes are combined so that the top exit slice plate of the first chamber provides the lower exit slice plate of the second chamber downstream of the first chamber so that pressurized furnishes for a two-ply web are...	10/19/1982
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
4058435	Seal assembly for pressure or vacuum chambers Improvements in seal assembly for use in pressure or vacuum chambers or the like comprising a sealing element which may be selectively placed in sealing condition or retracted to a non-sealing condition, the sealing element having a sealing surface adapte...	11/15/1977
4045281	Method for preventing web rewetting A method for preventing web rewetting in a paper making machine of the type comprising a forming cylinder with an apertured or perforated periphery, with or without a foraminous belt wrapped around the cylinder, on which cylinder there is formed, during r...	08/30/1977
3997391	Multi-press for the dehydration of sheet products A multi-press for removing water from sheet material such as paper, comprises a suction cylinder comprising a stationary internal cylinder and a rotatable external cylinder thereon that is permeable to the passage of fluid therethrough. The stationary int...	12/14/1976
3996098	Twin-wire paper machine with common wire path controls A twin wire paper machine having structure for controlling the common path taken by the wire. A web-carrying wire and a web-pressing wire having a common path extending upwardly from a lower forming roll to an upper couch roll with the web which is formed...	12/07/1976

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Class 162/370 - Plural suction areas