Patents by Inventor Perry WILLIAMSON

Perry WILLIAMSON 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).

  • Support for an excavation
    Patent number: 10087595
    Abstract: A support has an expandable enclosure for use in an excavation. The enclosure is expandable, on introduction of a fluid to the enclosure, from an unexpanded configuration to an expanded configuration. The enclosure is configured such that when the enclosure is in the expanded configuration, and is located in the excavation, pressure exerted by the fluid on an internal surface of the enclosure is sufficient to provide support for at least one wall of the excavation.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: October 2, 2018
    Inventor: Perry Williamson
  • SUPPORT FOR AN EXCAVATION
    Publication number: 20140270987
    Abstract: A support has an expandable enclosure for use in an excavation. The enclosure is expandable, on introduction of a fluid to the enclosure, from an unexpanded configuration to an expanded configuration. The enclosure is configured such that when the enclosure is in the expanded configuration, and is located in the excavation, pressure exerted by the fluid on an internal surface of the enclosure is sufficient to provide support for at least one wall of the excavation.
    Type: Application
    Filed: October 28, 2012
    Publication date: September 18, 2014
    Inventor: Perry WILLIAMSON