Patents by Inventor Charles E Cadwell

Charles E Cadwell 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).

  • Composite telephone pole
    Patent number: 7426807
    Abstract: A composite utility pole or the like is shown, having an elongate member, where a deformable material is co-extruded over the outer surface. The elongate member can have any configuration, but is shown as a circular cross section, and can have structural ribs. Concrete fills the substantial portion of the pole to give it rigidity.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: September 23, 2008
    Inventors: Charles E Cadwell, Carl Fischer
  • Wrapping paper housing and cutting apparatus
    Patent number: 5850960
    Abstract: A paper cutting apparatus comprising a housing partially enclosing a roll of paper and a cutting member disclosed along an opening of the housing. A leading edge of a roll of paper is unrolled through the opening of the housing and is linearly severed along the cutting member.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: December 22, 1998
    Inventor: Charles E. Cadwell
  • Vacuum sizing apparatus and method of using same
    Patent number: 5607638
    Abstract: A vacuum sizing apparatus and method of cooling and sizing plastic extrusions. In one embodiment the molten plastic extrudate enters a first vacuum chamber, passes into an ambient air environment, and then passes into a second water chamber. The first vacuum chamber includes entry and exit sizing plate manifolds to impart and maintain the size and shape of the plastic extrudate.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 4, 1997
    Inventor: Charles E. Cadwell
  • Recycling bin
    Patent number: D352583
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: November 15, 1994
    Inventor: Charles E. Cadwell