Patents by Inventor Dennis S. Rushforth

Dennis S. Rushforth 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: 7625848
    Abstract: An anti-traction material is disclosed which may be used as a coating on a variety of surfaces over which people and vehicles may find it difficult to traverse. The anti-traction material may include polymer particles capable of absorbing or being dissolved by a fluid and a fluid capable of absorbing or dissolving the polymer particles. The anti-traction material may include hydrophobic particles which may then control the rate and/or amount of fluid absorption of the polymer particles which may therefore improve storage capability and polymer particle flow behavior.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: December 1, 2009
    Assignee: Southwest Research Institute
    Inventors: Ronald J. Mathis, Mary C. Marshall, Nicholle K. Reinhardt, Errol M. Brigance, Geronimo I. Elias, Dennis S. Rushforth
  • Patent number: 7091246
    Abstract: A specific form of a dual mineral salt having potassium, magnesium, and citrate in a stoichiometric ratio of potassium:magnesium of less than 4:1 is disclosed. Methods of making the composition and using the composition as a dietary supplement are also disclosed.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: August 15, 2006
    Assignee: Mission Pharmacal Co.
    Inventor: Dennis S. Rushforth
  • Patent number: 7002079
    Abstract: A composite insulator containing means for providing early warning of impending failure due to stress corrosion cracking, flashunder, or destruction of the rod by discharge activity conditions is described. A composite insulator comprising a fiberglass rod surrounded by a polymer housing and connected with metal end fittings on either end of the rod is doped with a dye-based chemical dopant. The dopant is located around the vicinity of the outer surface of the fiberglass rod. The dopant is formulated to possess migration and diffusion characteristics, and to be inert in dry conditions and compatible with the insulator components. The dopant is positioned within the insulator such that upon the penetration of moisture through the housing to the rod through a permeation pathway in the outer surface of the insulator, the dopant will become activated and will leach out of the same permeation pathway or diffuse through the housing.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: February 21, 2006
    Assignee: Electric Power Research Institute
    Inventors: Joseph N. Mitchell, Spring M. Haby, Dennis S. Rushforth, Mark E. Van Dyke, Henry W. Oviatt, Jr., Andrew J. Philips, Ralph H. Hill, Jr., Mary C. Marshall