Patents by Inventor Jacob Moses Blass

Jacob Moses Blass 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).

  • Interdental brush
    Patent number: 6325626
    Abstract: An interdental brush has an elongate handle and a brush portion projecting from its front end. The handle has a main body which maintains the shape of the handle and is made of a first material and, at its front end, a body of elastomeric material softer than said first material which provides the front end surface of the handle. This reduces risk of pain or damage to a user's gums.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: December 4, 2001
    Assignee: Westone Products Limited
    Inventor: Jacob Moses Blass
  • Method and apparatus for forming elongate PTFE material and PTFE material particularly dental floss
    Patent number: 5806539
    Abstract: An elongate PTFE material is formed by passing an unsintered PTFE tape across a heated surface in sliding contact therewith while applying tension to the tape, such that the PTFE tape, when its temperature is raised by contact with the heated surface, is longitudinally stretched with simultaneous width and thickness reduction while in contact with the surface. PTFE tapes having different properties, e.g. coefficients of friction at opposite faces can be produced. Such tapes are suitable for use as dental flosses.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: September 15, 1998
    Assignee: Westone Products Limited
    Inventors: Jacob Moses Blass, John Murray
  • Elongate PTFE elements and articles made thereof
    Patent number: 5800823
    Abstract: An elongate PTFE (polytetrafluoroethylene) element is formed, having a PTFE matrix and containing a water soluble additive material in the form of solid particles distributed within the matrix. The PTFE elements may be twisted or untwisted tape, and a plurality of elements may be twisted together to form a fiber. Such elements or fibers may be formed into articles for use in dentistry, such as dental floss, or into medical sutures, woven filter mesh and other non-dental articles.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: September 1, 1998
    Assignee: Caredent Limited
    Inventor: Jacob Moses Blass
  • Method and apparatus for forming elongate PTFE material and PTFE material particularly dental floss
    Patent number: 5657779
    Abstract: An elongate PTFE material is formed by passing an unsintered PTFE tape across a heated surface in sliding contact therewith while applying tension to the tape, such that the PTFE tape, when its temperature is raised by contact with the heated surface, is longitudinally stretched with simultaneous width and thickness reduction while in contact with the surface. PTFE tapes having different properties, e.g. coefficients of friction at opposite faces can be produced. Such tapes are suitable for use as dental flosses.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: August 19, 1997
    Assignee: Westone Products Limited
    Inventors: Jacob Moses Blass, John Murray