Patents by Inventor Stasys K. Rudys

Stasys K. Rudys 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: 6046118
    Abstract: A breathable composite sheet material includes a first layer of flash-spun polyethylene plexifilamentary film-fibril sheet and a second layer of a thermoplastic open mesh fabric thermally laminated to the first layer. The composite sheet has an average tensile strength and an average grab tensile strength that are each at least 10% greater than the sum of the tensile and grab strengths of the first and second layers. The average tensile strength of the composite sheet after exposure to 400 mJ/m.sup.2 of ultraviolet light is at least 65% of the tensile strength of the sheet before any substantial exposure to ultraviolet light.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: April 4, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: David C. Jones, Stasys K. Rudys
  • Patent number: 6010970
    Abstract: Improved sheets of bonded plexifilamentary film-fibril strands spun from a polyolefin and a pigment are provided. The polyolefin comprises at least 90% by weight of the fibril strands, and the pigment comprises between 0.05% and 10% by weight of the fibril strands. The sheet has a high opacity and high smoothness, even when the sheet is bonded to a delamination strength greater than 120 N/m or when subjected to calendering. The sheet material is highly printable.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: January 4, 2000
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: David Jackson McGinty, Stasys K. Rudys, David M. Harriss
  • Patent number: 5845958
    Abstract: A motor vehicle transport cover is made of a vapor permeable, water impermeable, synthetic nonwoven sheet. The transport cover includes a mechanism for firmly attaching the nonwoven sheet in a position on a motor vehicle that covers substantially all of the roof, hood, and front bumper fascia of the vehicle and remains attached at air speeds along the major axis of the vehicle of at least 50 mph. The attachment mechanism is readily releasable and it leaves no visible adhesive residue on the vehicle at the moment the nonwoven sheet is removed from the vehicle. The transport cover may be a unitary cover that covers substanstially all of the finished surfaces of a covered vehicle. The transport cover does not prevent driver access to a covered vehicle and it does not unduly obstruct the view of a driver of a covered vehicle.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: December 8, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Stasys K. Rudys, David C. Jones, Virginia McAndrews Walsh, Linda C. Fisher, Ross W. Knapp, Charles B. Simon
  • Patent number: 5820196
    Abstract: A motor vehicle transport cover is made of a vapor permeable, water impermeable, synthetic nonwoven sheet. The transport cover is includes a mechanism for firmly attaching the nonwoven sheet in a position on a motor vehicle that covers substantially all of the roof, hood, and front bumper fascia of the vehicle and remains attached at air speeds along the major axis of the vehicle of at least 50 mph. The attachment mechanism is readily releasable and it leaves no visible adhesive residue on the vehicle at the moment the nonwoven sheet is removed from the vehicle. The transport cover does not significantly inhibit access to the covered vehicle and it does not obstruct the view of a driver of the covered vehicle. The transport cover has a front sheet piece made to cover the hood of the covered vehicle and a top sheet piece made to cover the roof of the covered vehicle. Where the covered vehicle is a sedan, the transport cover may also cover the trunk and rear bumper of the vehicle.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: October 13, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Stasys K. Rudys, David Charles Jones, Virginia McAndrews Walsh, Douglas John Nattrass, Charles Benjamin Simon
  • Patent number: 5626947
    Abstract: Composite chemical barrier films and fabrics that are particularly useful in protective garments. The composite barrier material may be made by laminating a barrier film to a flexible substrate using a thermoplastic resin and topcoating the barrier film with a similar or dissimilar thermoplastic resin to allow fabric seaming when the fabric is fabricated into a protective garment. Protective garments made from the materials are lightweight while maintaining an adequate balance of strength and chemical protection.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: May 6, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ernst J. Hauer, Stasys K. Rudys, James P. Zeigler