Patents Assigned to Scapa Group PLC
  • Patent number: 5857561
    Abstract: A tobacco conveyor belt having a regular nonwoven mesh structure. The belt may incorporate an ultra-violet sensative material.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: January 12, 1999
    Assignee: Scapa Group PLC
    Inventors: David Hardman, Ian Sayers
  • Patent number: 5849395
    Abstract: A method of making a polymer coated industrial fabric is disclosed. The method comprises urging a polymer film coated release sheet towards a textile substrate, curing the polymer and removing the release sheet. The polymer coating is reticular, comprising a network of two dimensional pores thus providing permeability.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: December 15, 1998
    Assignee: Scapa Group PLC
    Inventors: Craig Valentine, Ian C. Sayers
  • Patent number: 5826458
    Abstract: A moisture detection meter (10) has a sensing head having a single chamber (11) with an open top. A dielectric resonator member (14) is provided in the chamber. The sensing head also has a field generator (17) to generate an oscillating electric fluid in the chamber. The resonator member (14) and the field interact to produce at least one field component which is directed out of the open top of the chamber to interact with stock passing over the sensing head. A detection device is also provided to detect the frequency of resonance of the field compact after interaction with the stock and an indicator device is provided so as to give an output indicative of the moisture content of the stock.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: October 27, 1998
    Assignee: Scapa Group PLC
    Inventor: Cosmo Little
  • Patent number: 5820959
    Abstract: A corrugator fabric comprising a first basecloth having a first staple fiber layer secured to the lower face thereof and a second staple fiber layer secured to the upper face thereof, a second basecloth having a lower face secured to the second staple fiber layer and optionally the first basecloth, a third staple fiber layer secured to the upper face of the second basecloth, a jointing body to form a seam for said fabric and a seam flap including at least one basecloth covering said jointing body.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: October 13, 1998
    Assignee: Scapa Group PLC
    Inventor: Ronald Whittaker
  • Patent number: 5794758
    Abstract: A roller apparatus for a corrugator machine comprises a tubular mantle secured to a central core. Circumferential grooves are provided in the surface of the roller. The grooves provided at the centre of the roller are inclined at an angle ".alpha." which is less than the angle of inclination ".alpha." of the grooves provided at the outer regions of the roller.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: August 18, 1998
    Assignee: Scapa Group PLC
    Inventors: Lynn Alan Bakker, Chris Alan Ledeker, Ernest Lee Bailey, John Ray Young
  • Patent number: 5785724
    Abstract: A filtering apparatus has a bag or sleeve connected to a profiled resilient band (10, 20). The band is operative to sealing engage an aperture (13, 16) in a further body (16, 27). The profiled band (10, 20) has a one piece construction.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: July 28, 1998
    Assignee: Scapa Group PLC
    Inventor: Joe Johnson
  • Patent number: 5609931
    Abstract: A method of weaving a papermakers fabric having weft loops in which the loop forming weft yarn is woven as two picks in a common shed in each respective fabric layer as it exists in the loom. The weft yarn is wrapped about a core yarn at one edge of the fabric as it exists in the loom between successive weft insertions in said common shed.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: March 11, 1997
    Assignee: Scapa Group PLC
    Inventor: Jean-Luc L. Delavallade
  • Patent number: 5585430
    Abstract: A pintle wire comprises a polymer material containing a lubricant material of schistose nature. The polymer material comprises polyamide, polyester, copolyester, polyetheretherketone or polyphenylene sulphide. The schistose lubricant comprise graphite, molybdenum sulphide, cobalt sulphide, clay or silicate.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: December 17, 1996
    Assignee: Scapa Group PLC
    Inventors: Sanjay Patel, Robert L. Crook
  • Patent number: 5571223
    Abstract: A roller apparatus (23) for use in the drying section of an apparatus for producing corrugated board comprises a tubular body operative to be received over a metal roller. The wall of the tubular body comprises an inner layer (24) of relatively hard polyurethane and an outer layer (25) of a deformable polyurethane. A spiral winding of yarn (26) is wrapped around the inner layer (24).
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: November 5, 1996
    Assignee: Scapa Group PLC
    Inventor: Walter Dudovicz
  • Patent number: 5514438
    Abstract: A papermakers fabric comprises a felt made up of a base cloth and a batt of fibres needled to the base cloth. The papermakers fabric is woven from machine direction yarns and cross machine direction yarns. The machine direction yarns form a series of loops at each of the fabric ends, the two sets of loops being interdigitable and capable of union by a pintle wire. The machine direction yarns comprise a core of cabled monofilaments surrounded by a sheath of multifilaments.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: May 7, 1996
    Assignee: Scapa Group PLC
    Inventor: Robert L. Crook, Jr.
  • Patent number: 5508095
    Abstract: Papermachine clothing made from a sheet of partially fused polymeric particles and having a reinforcing structure embedded wholly within the sheet.
    Type: Grant
    Filed: November 2, 1994
    Date of Patent: April 16, 1996
    Assignee: Scapa Group PLC
    Inventors: Andrew Allum, Ian C. Sayers, Thomas Saunders
  • Patent number: 5419017
    Abstract: A temporary seaming bridge (62) for connecting two belt ends (26,27) during seaming comprises a bridge portion (63) with a plurality of pegs (34,35) provided at each end. The pegs (34,35) are complementary with apertures (28,29) provided in the belt ends (26,27) such that the pegs (34) at one end of the bridge engage the apertures (28) in one belt end (26) and the pegs (35) of the other end of the bridge engage the apertures (29) in the other belt end (27).
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: May 30, 1995
    Assignee: Scapa Group PLC
    Inventors: Robert D. Buchanan, Ian C. Sayers
  • Patent number: 5405685
    Abstract: Papermachine clothing for use in the forming, pressing or drying sections of a papermachine including fibres of polyethylene naphthalate polymer which provides excellent hydrolysis and heat resistance as well as good mechanical properties such as tensile strength, tenacity, elongation and flexibility.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: April 11, 1995
    Assignee: Scapa Group PLC
    Inventor: Sanjay R. Patel
  • Patent number: 5391427
    Abstract: A filter belt (10) comprises an edge track (13) made from rubber, but having an olefin content which softens under heat to facilitate welding to a fabric. The rubber is welded to one edge of a length of fabric (12). The opposite edge of the fabric (12) is secured to a filter cloth (11).
    Type: Grant
    Filed: August 25, 1992
    Date of Patent: February 21, 1995
    Assignee: Scapa Group plc
    Inventor: Shyam Kumaran
  • Patent number: 5364692
    Abstract: A stuffed spiral link fabric, providing a supporting surface for transporting a web includes a plurality of synthetic spiral coil members connected together serially by elongated hinge members extending through intermeshed portions of adjacent intermeshing spiral coil members to form a spiral link fabric and a plurality of elongated shaped synthetic stuffer yarns extending through central portions of the spiral coil members to form a stuffed spiral link fabric. The stuffed spiral link fabric is heat set to form a fabric in which each spiral coil member has a cross sectional shape having arcuate ends joined by substantially straight portions and a central portion of each spiral coil member is substantially filled with a stuffer yarn which engages and is clamped to each intermeshed portion adjacent thereto, reducing the air and moisture permeability of the fabric and increasing the fabric stability. The stuffer yarn is modified in shape and trapped in place in the spiral fabric by the heat setting step.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: November 15, 1994
    Assignee: Scapa Group, PLC
    Inventors: David Bowen, Jr., Gerald L. Smith
  • Patent number: 5358750
    Abstract: An industrial fabric such as a fusing or laminating belt and a method for the production thereof wherein an endless base fabric (21) is coated with successive layers (24, 25,26) of a synthetic plastics coating material, some at least of the layers including silicate bodies therein. The total coating includes at least one layer (25a) applied by lick coating and at least one layer (25, 26) applied by dip coating.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: October 25, 1994
    Assignee: Scapa Group PLC
    Inventor: Frank Brookfield
  • Patent number: 5342486
    Abstract: An extended nip press belt having a longitudinal running direction for the press-section of a papermaking machine includes an apertured membrane having two opposite faces and an impermeable coating layer at at least one face thereof. The material of the coating layer of layers engaging the apertures in the membrane extend at least to the plane of the face of the membrane opposite the one face. The membrane may include reinforcing yarns in the longitudinal running direction of the belt.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: August 30, 1994
    Assignee: Scapa Group PLC
    Inventors: John Jeffery, Leslie Y. Kaniuka, Ian C. Sayers
  • Patent number: 5330604
    Abstract: A method and apparatus is disclosed for manufacturing papermakers or like fabrics wherein preformed apertured fabric bands are joined together in spaced edge-to-edge disposition in a manner to provide substantial uniformity of construction throughout the fabric width. The invention proposed supporting the bands (11, 12) in spaced parallel disposition on a pinned roller (26) wherein the distribution and configuration of the pins (34) matches the apertures in the bands and creating an infill band in the region between adjacent preformed bands (11, 12) by feeding thermoplastic matrix material to the surface of the pinned roller in said region, causing said matrix material to flow into interstices between the pins and to bond with the material of the preformed bands. Reinforcing yarns (13) will be provided in the region between adjacent preformed bands and extending in a direction parallel to the bands and will be embodied within the matrix material of the joined structure.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: July 19, 1994
    Assignee: Scapa Group PLC
    Inventors: Andrew Allum, John Jeffery, Ian C. Sayers, Michael D. Spence
  • Patent number: 5245939
    Abstract: A fabric for use in supporting a cellulose pulp sheet during passage through a Flakt dryer which is of asymmetric double weave construction, the fabric being folded into V-shaped configuration and there being essentially uncrimped, essentially inextensible load bearing yarns positioned between the weft yarns of the respective fabric layers and extending in the longitudinal direction of the fabric, adjacent ones of the load bearing yarns being separated by warp yarns of the less densely woven inner layer which weave also with the weft yarns of the outer layer. The more densely woven outer layer protects the load bearing yarns from wear and from the adverse effects of heat.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: September 21, 1993
    Assignee: Scapa Group plc
    Inventor: Jean A. M. Rouhling
  • Patent number: 5217415
    Abstract: A papermakers fabric, and particularly a corrugator fabric, has a flat-woven, multilayer structure and is brought into endless form by a joint or seam arranged obliquely relative to the running direction of the fabric and at the roller side thereof. The angular disposition of the seam reduces noise levels, sheet marking and web breakage.
    Type: Grant
    Filed: August 29, 1991
    Date of Patent: June 8, 1993
    Assignee: Scapa Group plc
    Inventors: Michel Wasylezuck, Jean Rouhling