Patents by Inventor Kevin N. McGraw

Kevin N. McGraw 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).

  • Spring assembly and perimeter support spring therefor
    Patent number: 5363522
    Abstract: A perimeter support spring for use in a mattress or furniture spring assembly having an array of coil springs connected with spaced parallel border wires along the perimeter of the spring array is connected between the border wires to provide supplementary support to the mattress perimeter. The support spring comprises a torsion spring member having an intermediate torsion coil, a pair of spring arms diverging from the torsion coil, and a pair of molded plastic mounting clips attached to the terminal ends of the spring arms.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: November 15, 1994
    Assignee: Hickory Springs Manufacturing Company
    Inventor: Kevin N. McGraw