Class 162/369 - With non-rotating internal suction box

Subclass of Class 162 - Paper making and fiber liberation
Definition: Apparatus in which the active suction area of the pervious
No. of patents: 29
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
7118103	Device for conveying sheets through a printing machine A device for conveying sheets through a printing machine, in particular through an ink jet printing apparatus, permits adaptation to different printing material thicknesses and ensures reliable transport. The conveying device has a conveyor belt which runs over defl...	10/10/2006
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
6395137	Seal construction for a suction box in a suction roll in a paper/board machine The invention concerns a seal construction for a suction roll in a paper machine. The seal construction (10) comprises a substantially U-section holder (12) open towards the inner face (3) of the roll mantle, a seal which is mounted in the holder, which i...	05/28/2002
6358370	Sealing arrangement for a suction box of a suction roll A suction box comprises a fixed frame part (11) and a lid part (12) disposed in the frame part (11) to be movable. The moving lid part (12) moves relative to the fixed frame part (11) with the aid of gravity or with the aid of expansion members (15a, 15b,...	03/19/2002
6334934	Sealing device and process for sealing pressure zones in a paper-making machine Sealing device and process for laterally sealing at least one excess pressure or vacuum zone adjoining a moving surface in a paper-making machine. The sealing device has at least one sealing element arranged in a receptacle area of a holder and is movable...	01/01/2002
6312564	Sealing device and process for sealing pressure zones in a paper-making machine A sealing device and process for laterally sealing at least one overpressure zone or underpressure zone adjacent to an actuating surface in a paper-making machine. The sealing device has at least one sealing element arranged movably at least locally in an...	11/06/2001
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
6174414	High pressure reciprocating suction roll shower A high pressure shower system for cleaning perforations in a suction roll of a paper-making machine is disclosed. An elongated header pipe is mounted to the outside of the suction box and is fitted with a plurality of spaced high pressure nozzles directed...	01/16/2001
5935386	Suction roll box Suction box for a machine producing a web containing cellulose fibers, said suction box being placed inside a rotating suction roll (2) provided with a perforated jacket (1), said suction box (3) comprising a suction chamber (4) having a suction inlet (6)...	08/10/1999
5746891	Wear indicators for seal strip of a suction roll of a paper making machine Wear indicators (80) are formed in the seal strips (52, 54) of a suction box (44) of a suction roll assembly (15) of a papermill. The wear indicators include a space such as a bore (74) formed in the seal strip, extending through the arcuate seal surface ...	05/05/1998
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
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
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
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
4915787	Paper machine suction roll seal strips A sealing strip and joint for a papermaking machine suction roll is disclosed which includes in combination a stationary suction box and a perforated cylindrical shell which rotates around the stationary suction box disposed centrally within the cylindric...	04/10/1990
4882011	Device for generating negative pressure inside a mantle of a revolving roll The present invention concerns a device for generating negative pressure inside a cylindrical roll mantle of a revolving roll. The roll has a roll mantle provided with through-holes, grooves or equivalent apertures and confining a suction chamber in the i...	11/21/1989
4714523	Suction roll seal strips with teflon insert Sealing strips mounted on an internal vacuum box and engaged with the internal surface of a perforated rotatable shell forming a suction roll in a conventional paper making machine are contructed from a body portion of organic material having an outer sur...	12/22/1987
4693784	Suction roll and method for applying a negative pressure over a sector of a roll A method for applying a negative pressure over a sector of an air-pervious mantle of a roll includes providing a suction chamber within the pervious roll mantle which extends over a suction sector of the roll, directing air jets away from the suction cham...	09/15/1987
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
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
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
4073679	Cylinder for forming, guiding and/or transporting paper webs or the like The web forming, guiding and/or transferring cylinder in the wire section of a papermaking machine has a deformable foraminous shell which is made of filamentary material and the end portions of which are clamped to rigid rotary ring-shaped end walls. The...	02/14/1978
4018648	Galvanic protection of a couch roll Galvanic electrodeposition of copper onto a cast iron vacuum box from a rubber covered brass couch shell carrying a non-conductive papermakers forming wire may be prevented by electrically connecting the brass couch shell with a sacrificial anode of more ...	04/19/1977
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
3974026	Belt press with rotatable cylinder and adjustable pressure member The belt press is constructed with a rotatable cylinder, a guide belt to confine the material between the belt and cylinder, and a press member for pressing the belt towards the cylinder to remove water from the confined material. The press member has a c...	08/10/1976

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Class 162/369 - With non-rotating internal suction box