Patents by Inventor Bernard Lindsay Newman

Bernard Lindsay Newman 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).

  • Eversible stopper/strainer device
    Patent number: 6418568
    Abstract: A stopper-strainer device (1) having a diaphragm (2) and a closure plate (4). The diaphragm (2) is provided with apertures (6) for passage of fluid. The diaphragm (2) is movable between 2 first and second conditions in which the stopper-strainer device (1) functions as a stopper and a strainer, respectively. In the first condition, the closure plate (4) seals with the diaphragm (2) so that the stopper-strainer device (1) functions as a stopper to prevent fluid flow. In the second condition, the closure plate (4) is spaced from the diaphragm (2) and fluid is able to pass through the apertures (6) so that the stopper-strainer device (1) functions as a strainer to allow fluid flow while restraining material entrained in the fluid that is unable to pass through the apertures (6).
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: July 16, 2002
    Inventors: Raymond Briggs, Bernard Lindsay Newman, Mark Alwyn Luff