Patents by Inventor Samuel Hall

Samuel Hall 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).

  • Finishing trowel
    Patent number: 7144193
    Abstract: A trowel for finishing the top of concrete stem walls around protruding anchor bolts has a finishing surface in the form of a blade or block attached to a handle. An opening in the form of a notch or a hole is provided in the blade or block for accommodating an anchor bolt. The trowel may be provided with means to position the anchor bolt vertically and horizontally in addition to finishing the concrete around the anchor bolt. The trowel may also have a curved side edge for rounding the concrete where it contacts the form.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: December 5, 2006
    Inventor: Samuel Hall Bousfield
  • Safety medicine bottle closure
    Patent number: RE28861
    Abstract: A safety container closure for small plastic medicine bottles. A plug is inserted into the top or neck, in a tight friction-fit. The plug carries a key recess. An outer cap fits over the top of the container, and carries a key molded to it. The key is placed into the recess, and the plug engaged for withdrawal.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: June 15, 1976
    Assignee: Plastic Container Corporation
    Inventor: Samuel Hall, Jr.