Patents by Inventor Philip O. Underhill

Philip O. Underhill 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: 4640385
    Abstract: There is provided portable scaffolding units useful in pairs or more having an angled main leg attached to a walkway support T-brace leaning against the wall or surface being worked. The T-brace rests against the work surface held with no-slip pliable ribbed facing and by an adjustible nailer. The positioning of a raised work walkway is side supported by angled braces affixed to both sides of the walkway support T-brace. The main leg and the angle braces are both adjustible in length and affixed with leveling feet for holding the structure firmly on uneven or soft ground. Safety brackets are supplied to hold a safety rail at a sufficiently high position above a plank walkway to prevent step-back accidents.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: February 3, 1987
    Inventor: Philip O. Underhill