Patents by Inventor Robert Darras

Robert Darras 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: 6020057
    Abstract: A surgical glove and method for making same is disclosed comprised of a polymeric matrix with at least one compact layer of very small particulate characterized by a very high hardness disposed therein. The disclosed glove and method is cost effective, easily adapted to present manufacturing methods, and provides a surgical glove which demonstrates a high resistance to cuts and punctures while maintaining a high level of elasticity and touch. The proposed particulate is one of a series of powders such as silicon carbide, carborundum, or diamond dust having a mean particle size of between 1-85 microns and a preferred particle size of between 5-8 microns, which can be applied to a curing elastic glove via spray or pre-mixing the particulate in the molten polymeric matrix prior to forming. The estimated thickness of the finished glove is approximately 2-7 millimeters, although greater thicknesses can be achieved by repeated processing at a cost of superior tactility but without loss of elasticity.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: February 1, 2000
    Inventor: Robert Darras
  • Patent number: 5817433
    Abstract: A surgical glove and method for making same is disclosed comprised of a polymeric matrix with at least one compact layer of very small particulate characterized by a very high hardness disposed therein. The disclosed glove and method is cost effective, easily adapted to present manufacturing methods, and provides a surgical glove which demonstrates a high resistance to cuts and punctures while maintaining a high level of elasticity and touch. The proposed particulate is one of a series of powders such as silicon carbide, carborundum, or diamond dust having a mean particle size of between 1-85 microns and a preferred particle size of between 5-8 microns, which can be applied to a curing elastic glove via spray or pre-mixing the particulate in the molten polymeric matrix prior to forming. The estimated thickness of the finished glove is approximately 2-7 millimeters, although greater thicknesses can be achieved by repeated processing at a cost of superior tactility but without loss of elasticity.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: October 6, 1998
    Inventor: Robert Darras