Patents by Inventor Ian Christison Sayers

Ian Christison Sayers has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6212739
    Abstract: A pintle wire (10) for insertion through interdigitating end loops of a belt fabric or of a spiral connector, is disclosed which is expandable after insertion into the seam, for example by way of a sheath (12) which includes a thermally activated expanding agent. This is subject to heating to expand the sheath (12) , causing the pintle wire (10) to swell and fill voids in the seam area reducing permeability in the seam and thus reducing marking of paper webs carried by the belt.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: April 10, 2001
    Inventors: Robert L. Crook, Ian Christison Sayers
  • Patent number: 6176271
    Abstract: In a seam, for example, for paper machine clothing, interdigitating seaming loops (13, 14) embrace deformable yarns (17) inserted between the last cross-machine direction yarns (15a) and the opposed seaming loops (14, 13). Alternatively, an insert may be in the form of a ladder-like member (30) comprising one or more cross-machine direction members (31, 32, 33) and a multiplicity of machine direction members (34) extending beyond the members (31, 32, 33) to locate the seaming loops. Also possible is the use of a strip or tape of foamed or foamable material.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: January 23, 2001
    Assignee: Scapa Group PLC
    Inventors: Ian Christison Sayers, Robert L. Crook, Sanjay Patel
  • Patent number: 5989651
    Abstract: A phase separation apparatus such as a filter element or papermaking belt comprises an ormocer which provides abrasion resistance, cleanliness and stability.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: November 23, 1999
    Assignee: Scapa Group PLC
    Inventors: Ian Christison Sayers, Thomas Saunders
  • Patent number: 5980986
    Abstract: A method of coating an ormocer (organically modified ceramic) on a phase separation surface of a roller of a phase separation apparatus to facilitate phase separation.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: November 9, 1999
    Assignee: Scapa Group PLC
    Inventors: Ian Christison Sayers, Thomas Saunders
  • Patent number: 5976621
    Abstract: A method of coating an ormocer (organically modified ceramic) on a phase separation surface of a filter of a phase separation apparatus to facilitate phase separation.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: November 2, 1999
    Assignee: Scapa Group PLC
    Inventors: Ian Christison Sayers, Thomas Saunders
  • Patent number: 5932291
    Abstract: A method of coating an ormocer (organically modified ceramic) on a papermachine clothing.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: August 3, 1999
    Assignee: Scapa Group PLC
    Inventors: Ian Christison Sayers, Thomas Saunders
  • Patent number: 5925221
    Abstract: A papermaking fabric primarily for use as a press felt comprises basalt fibers.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: July 20, 1999
    Assignee: Scapa Group PLC
    Inventors: Ian Christison Sayers, Robert David Buchanan