Patents by Inventor Thomas Gefell

Thomas Gefell 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: 5894855
    Abstract: An umbrella features a rigid structural stem for supporting a canopy. The rim of the canopy is inflatable, thus providing a circular shape to the canopy periphery. The canopy is made of a flexible material, such as cloth, plastic, canvass or combinations thereof. The plastic material can be transparent or diaphanous. Radially extending rods, that are substantially equally spaced about the canopy, project from the stem towards the inflatable rim to provide further structural support for the canopy. The radial rods do not extend past the rim, thus providing safety. There are three embodiments of the umbrella of this invention. The first embodiment features an umbrella design having a standard curvilinear canopy with inflatable rim. The second embodiment is a conically shaped canopy with inflatable rim. The third embodiment of this invention is a canopy having an upper conically shaped portion surrounded by an inflatable rim. A skirt is attached to the upper portion.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: April 20, 1999
    Inventor: Thomas Gefell