Patents by Inventor Virginia S. Colvin

Virginia S. Colvin 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: 6298907
    Abstract: A support means or pad which is adapted to overlie an area to be thermally regulated. A plurality of microcapsules are dispersed within the support pad. The support means may be a porous pad or overlying layers of a mesh-type fabric. The fabric sheets include a series of channels which may be zig-zag in shape and are filled with a temperature stabilizing means, for example, a macroencapsulated phase change material. Suitable phase change materials are paraffinic hydrocarbons and water. In another aspect of the invention, the temperature stabilizing means is distributed within the support means in proportion to the underlying thermal load.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: October 9, 2001
    Assignee: Delta Thermal Systems, Inc.
    Inventors: Virginia S. Colvin, David P. Colvin
  • Patent number: 5261394
    Abstract: A percussive aid provides percussive force to aid in the treatment of Cystic Fibrosis and other pulmonary blockage diseases. The device includes a frame with a pair of reciprocating arms mounted thereto at one of their ends. The other end of the arms mount impactor cups. A spring is associated with each of the cups. A drive mechanism is carried by the frame and moves the arms through a predetermined path of travel from a first uncocked position to a second cocked position of maximum deflection wherein the spring is placed in tension when the arm is tripped.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: November 16, 1993
    Assignee: Triangle Research and Development Corporation
    Inventors: James C. Mulligan, David P. Colvin, Virginia S. Colvin, Benjamin T. Gravely, Charles J. Lord, David B. Moody, Raymond A. Whitney, William C. Bryan
  • Patent number: 5141079
    Abstract: A method of obtaining enhanced thermal energy between a material forming apparatus and a cooling fluid is disclosed. A two component heat transfer fluid of the type including a carrier fluid and a plurality of discrete particles that undergo a reversible latent energy transition upon the transfer of thermal energy thereto. The temperature of the particles is adjusted (heated or cooled as necessary) to the point of the beginning of latent energy transition of the particles. The fluid is then brought into contact with a heat source such as a metal forming apparatus and a workpiece, proximate the interface therebetween. The slurry may then be collected, adjusted to the point of the beginning of latent energy transition and re-circulated to the heat source.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: August 25, 1992
    Assignee: Triangle Research and Development Corporation
    Inventors: Raymond A. Whitney, Virginia S. Colvin, David P. Colvin, James C. Mulligan
  • Patent number: 4905989
    Abstract: A fall intervention garment adapted to secure a person to a tethered supporting structure is disclosed. The garment is generally in the form of a vest and includes an upper section and a lower section. The lower section is formed so as to be responsive to a load being placed on the upper section for generating an inwardly directed holding force about the person's torso area. Attachment ring are connected to the upper section for detachably connecting the vest to a support structure.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: March 6, 1990
    Assignee: Triangle Research and Development Corporation
    Inventors: David P. Colvin, Virginia S. Colvin