Patents by Inventor William A. Trott

William A. Trott 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: 4243495
    Abstract: A continuous metal foil or sheet of the desired width and thickness is formed by electroforming and is provided with lines of weakness therethrough. The sheets can be cut off into desired lengths and shipped flat. When required, the sheets can be formed either manually or in a guide form to the desired configuration or shape, by bending along the lines of weakness to provide the structure. If desired, break out portions can be removed which are defined by further lines of weakness through the sheets.
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: January 6, 1981
    Inventor: William A. Trott
  • Patent number: 4228802
    Abstract: An outer envelope and an inner drainage tube are formed from an elastomeric material with molded in reinforcing and guiding elements. The inner tube engages within the outer tube to form a flexible catheter having a smooth outer surface and a pair of interior lumens. The inner cylindrical lumen through the inner drainage tube serves as a drainage channel and the second lumen, formed by the annular cross sectional space between the tubes, provides a passage for the introduction of irrigating fluid or the like. A mechanical expanding device is provided near the distal end and a manually operated actuator near the proximal or external end. A detachable auger assembly can be introduced into the first lumen and can be rotated from the external end of the catheter to draw down clots or debris from the bladder which might obstruct the passage.
    Type: Grant
    Filed: June 7, 1978
    Date of Patent: October 21, 1980
    Assignee: Medical Products Institute Incorporated
    Inventor: William A. Trott