Patents by Inventor Rick D. Robinson

Rick D. Robinson 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).

  • Mattress core and mattress providing pressure relief and minimizing body pressure
    Patent number: 6782575
    Abstract: A mattress core is defined by a base core to which is bonded upper and lower corrugated outer layers each having oppositely directed corrugations, and side rails bonded to at least sides of the base core. The side rails have a height corresponding to the distance between valleys of opposite corrugated outer layers. The mattress core and mattress have an ILD range of substantially 26 ILD to 50 ILD for the side rails, 24 to 40 ILD for the base core and 12 to 45 ILD for each of the corrugated outer layers. The base core and the outer layers also collectively define a torso firmness zone and opposite head and foot firmness zones with the torso firmness zone being substantially between 20% to 30% more dense than the head and foot firmness zones. Ends of the mattress core and mattress are devoid of end rails.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: August 31, 2004
    Inventor: Rick D. Robinson
  • Scalloped edge mattress pad
    Patent number: D665615
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: August 21, 2012
    Assignee: Spring Air International LLC
    Inventors: Billy Joe Frame, Jr., Rick D. Robinson