Radially Aligned Patents (Class 492/33)
  • Patent number: 6039555
    Abstract: A topsheet for body exudates absorbent article includes a hydrophilic nonwoven fibrous sheet and a plurality of thermoplastic synthetic resin filaments extending in one direction parallel to one another and continuously bonded to an upper surface of the nonwoven fibrous sheet so that a composite sheet of these sheet and filaments have crests and troughs alternately repeating longitudinally of the filaments and respectively extend transversely of the filaments. An apparatus and a method for manufcturing the topsheet are also disclosed, wherein a pair of mutually engageable embossing rolls are used for forming the crests and the troughs onto the coposite sheet.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: March 21, 2000
    Assignee: Uni-Charm Corporation
    Inventors: Tomoko Tsuji, Hisashi Takai, Hiroki Goda
  • Patent number: 6029570
    Abstract: Press jacket for a press device that drains a material web in a press nip having a press nip length. The press jacket includes blind holes for water absorption that open to a jacket surface of the press jacket and channels extending at least sectionally in a web run direction being coupled to the blind holes. The channels have a length in the web run direction greater than a length of the press nip.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: February 29, 2000
    Assignee: Voith Sulzer Papiermaschinen GmbH
    Inventor: Uwe Matuschczyk
  • Patent number: 5902685
    Abstract: A grinding roll for use in a material bed roll mill for the comminution of brittle material has a cylindrical body in the periphery of which are alternating grooves and lands. To the exterior of each land is secured a wear strip. The grooves of the confronting rolls may be directly opposite one another or the grooves may be offset axially so that the grooves in one roll confront a land of the opposite roll.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: May 11, 1999
    Assignee: Krupp Polysius AG
    Inventors: Heinz Schroder, Oswald Haberhauer
  • Patent number: 5816988
    Abstract: A roll, for driving a woven-wire conveyor belt, provides substantially-uniform drive across the belt width, avoids disruption of belt drive, provide unidirection tracking of the belt, and avoids disruption of conveyed products during treatment of conveyed products at temperatures other than ambient. During conveyance of a product for heating or cooling treatment, woven-wire conveyor belts and rolls driving the belts are often at differing temperatures, especially during start-up and shutdown of operations. Such temperature differentials can cause dimensional changes in a belt which change the relative location of belt recesses with respect to the roll surface. Selective shaping and dimensioning of roll protrusions from the widthwise center of a roll toward each lateral end of the roll eliminates mismatching of belt recesses due to changes in belt width during product processing at temperatures other than ambient.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: October 6, 1998
    Assignee: Maryland Wire Belts, Inc.
    Inventors: Ronald G. Daringer, Richard A. Loeffler, Sr., H. William West
  • Patent number: 5649890
    Abstract: The draw roller is designed as a suction roller with a rotatable roller casing having orifices, and the material web loops around the draw roller along a circumferential portion. The internal suction-air supply connectable to a negative-pressure source opens out on the inner circumference of the roller casing and is designed so that a stationary suction surface of wedge-shaped form is obtained on the casing circumference. The wedge tip is directed opposite to the direction of rotation of the roller casing and is located at the start of said circumference portion in the roller center. The suction surface widens obliquely outwards on both sides with an increasing looping angle and, at the end of the circumferential portion, has a width corresponding to the total width of the material web.
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: July 22, 1997
    Assignee: De La Rue Giori, S.A.
    Inventors: Joachim Alfred Lapp, Alfred Walter Weiler
  • Patent number: 5601520
    Abstract: In order to create a wear-resistant hard-surfacing for the rolls of high-pressure roll presses for the compressive size reduction of granular material, which is suitable for autogenous wear protection and which is simple from the fabrication standpoint and also exhibits a long potential surface life with minimized danger of cracking, even under the action of high pressing compressive loads, it is proposed in accordance with the invention that a multitude of profiles, such as, in particular, nub pins (17), arranged at intervals from one another, be welded onto the roll surface by mold welding, specifically with the assistance of a mold (11) laid on the roll body (10), which mold is provided with radial through openings (12, 13, 14), which are filled with surface weld metal, after which, after solidification of the weld metal, the preferably water-cooled mold (11) is lifted off the roll (10).
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: February 11, 1997
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Michael Wollner, Ludger Alsmann, Frank Fischer-Helwig
  • Patent number: 5553806
    Abstract: A roll for selective use as either a support drum or as a rider roll in a winder for winding a traveling paper web into a relatively large diameter wound web roll has a body with an outer, elastomeric cover. The elastomeric cover includes a pattern, open to the surface, arranged such that the percent of volumetric void for a unit of cover volume is such that the effective hardness of the cover ranges between about 30 Shore "A" to about 55 Shore "A" where the roll is a support drum, and between about 40 Shore "A" to about 65 Shore "A" when the roll is a rider roll. In addition, the elastomeric material has an absolute hardness of about 65 Shore "A", or less, for a support drum, and about 75 Shore "A", or less, for a rider roll, and a Poisson's ratio of between about 0.47 to about 0.499.
    Type: Grant
    Filed: May 19, 1994
    Date of Patent: September 10, 1996
    Assignee: Beloit Technologies, Inc.
    Inventor: Robert G. Lucas
  • Patent number: 5522786
    Abstract: A gravure roll and associated coating methods are disclosed that produces a uniform coating gradient on a substrate. The gravure roll comprising a series of cells arranged in circumferential line density sections in which the line densities progressively increase from section to section, and in which the cell volumes progressively decrease within each section, and in which the cell volumes at the end of one section are substantially the same as the cell volumes at the beginning of the next adjacent section.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: June 4, 1996
    Assignee: Rexam Industries Corp.
    Inventors: Thomas R. Fields, Amy E. Bohr, Kendalyn R. McCoy, Lawrence C. Forszen
  • Patent number: 5507226
    Abstract: A web transporting device usable in a rotary printing press or folder, includes a rotatably driven transport roller having a fixed axis and at least one engagable nip roller having an axis substantially parallel to the fixed axis and being engagable with the driven transport roller. The engagable nip roller has a length corresponding to a maximum width of the web processable in the printing press. A removable nip sleeve is provided which is axially mounted on the engagable nip roller. The removable nip sleeve has an least one ring-shaped annular gap disposed axially along its length which allows the web to ripple as it passes through the web transporting device without causing permanent wrinkles or creases to form in the web. A counterbalancing mechanism is also provided which stabilizes the engagable nip roller in a maintenance position as the removable nip sleeve is replaced.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: April 16, 1996
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: David C. Burke, Michael A. Novick
  • Patent number: 5385309
    Abstract: A wood chip cracking device for use in papermaking employs closely spaced, oppositely rotating rolls which have pyramid-shaped projections on the roll surfaces. This chip destructuring apparatus is rendered readily serviceable with minimal downtime by constructing the roll surface of removable segments which are bolted to a central rotatable shaft. The segments are sized so they can be lifted by a service man. As damage to the roll surface, such as by exposure to tramp metal, is typically limited to a single segment, service and repair of the roll is expedited by permitting removal of a single damaged segment without removing the remaining undamaged segments. Each sector is bored for twelve bolts and is affixed to the central axis by twelve recessed bolts. The surface segments allow the surface to be replaced without removing the rolls from the frame of the wood chip cracking device.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: January 31, 1995
    Assignee: Beloit Technologies, Inc.
    Inventor: Joseph B. Bielagus