Patents by Inventor Daniel E. Hammond

Daniel E. Hammond 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).

  • Process for colored polyethylene moldings
    Patent number: 5232644
    Abstract: Polyethylene resin compositions containing mottled colors and a process for their production, includes forming a colored resin by hot melting the resin together with an appropriate color in an extruder. The colored resin is reground to about 35 mesh, and then blended with a flow additive such as zinc stearate, and preferably an anti-static powder. The blended resin is then rotationally molded along with other, different colored resin particles to obtain a final multi-colored, mottled appearance in the molded product. Different color combinations such as granite, green, red, brown, grey, sandstone, etc., can be produced, without the different colors intermixing or bleeding into each other, while still maintaining the integral molded product form.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: August 3, 1993
    Inventors: Daniel E. Hammond, John D. Hammond
  • Rolling, strap-held, end rollers for securing a folded canopy therebetween
    Patent number: D486286
    Type: Grant
    Filed: May 12, 2002
    Date of Patent: February 3, 2004
    Inventor: Daniel E. Hammond
  • Children's chair
    Patent number: D351288
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: October 11, 1994
    Inventors: Daniel E. Hammond, John D. Hammond