Patents by Inventor Robert L Rensink

Robert L Rensink 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: 8448315
    Abstract: In one embodiment, a mattress is constructed of a core having a first side and a second side. A padding layer is positioned at the first side of the core and has a contoured surface and a planar surface. A layer of individual fiberballs is disposed on the planar surface of the padding layer.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: May 28, 2013
    Assignee: Denver Mattress Co., LLC
    Inventor: Robert L. Rensink
  • Publication number: 20110067215
    Abstract: In one embodiment, a mattress is constructed of a core having a first side and a second side. A padding layer is positioned at the first side of the core and has a contoured surface and a planar surface. A layer of individual fiberballs is disposed on the planar surface of the padding layer.
    Type: Application
    Filed: November 24, 2010
    Publication date: March 24, 2011
    Applicant: Denver Mattress Co. LLC
    Inventor: Robert L. Rensink
  • Publication number: 20110047708
    Abstract: In one embodiment, a mattress comprises a core and a cushion layer positioned above the core. A fibrous air spacer layer is positioned above the cushion layer, and a layer of visco-elastic foam is positioned above the fibrous layer. This permits the fibrous layer to be sandwiched between the cushion layer and the layer of visco-elastic material.
    Type: Application
    Filed: September 2, 2010
    Publication date: March 3, 2011
    Applicant: Denver Mattress Co. LLC
    Inventors: Robert L. Rensink, Jonathan Amendola
  • Publication number: 20100115704
    Abstract: In one embodiment, a mattress is constructed of a core having a first side and a second side. A padding layer is positioned at the first side of the core and has a contoured surface and a planar surface. A layer of individual fiberballs is disposed on the planar surface of the padding layer.
    Type: Application
    Filed: November 16, 2009
    Publication date: May 13, 2010
    Applicant: Denver Mattress Co. LLC
    Inventor: Robert L. Rensink
  • Patent number: 7617556
    Abstract: Mattress systems and methods for their construction are provided. One such mattress includes a first mattress core and a second mattress core positioned on top of the first mattress core. A border material extends along an outer first edge of the first mattress core and along an outer second edge of the second mattress core. The border material has an intermediate portion which extends between the first and second mattress cores and is coupled to at least one of the first and second mattress cores, and in some aspects to both cores.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: November 17, 2009
    Assignee: Denver Mattress Co., LLC
    Inventor: Robert L Rensink
  • Patent number: 7617788
    Abstract: In one embodiment, a mattress is constructed of a core having a first side and a second side. A padding layer is positioned at the first side of the core and has a contoured surface and a planar surface. A layer of individual fiberballs is disposed on the planar surface of the padding layer.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: November 17, 2009
    Assignee: Denver Mattress Co., LLC
    Inventor: Robert L. Rensink
  • Patent number: 7284494
    Abstract: In one embodiment, a mattress is constructed of a core having a first side and a second side. A padding layer is positioned at the first side of the core and has a contoured surface and a planar surface. A layer of individual fiberballs is disposed on the planar surface of the padding layer.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: October 23, 2007
    Assignee: Denver Mattress Co., LLC
    Inventor: Robert L Rensink
  • Patent number: 6952850
    Abstract: A no-fip mattress is constructed of a mattress core, a first padding layer positioned on top of the core, wherein the first padding layer has a density in the range from about 0.5 pounds per cubic foot to about 3 pounds per cubic foot and a firmness in the range from about 8 IFD to about 45 IFD. A second padding layer is adjacent to the first padding layer, wherein the second padding layer has a density in the range from about 0.5 pounds to about 1.9 pounds, and an IFD in the range from about 5 to about 23. A bottom support layer is beneath the core, and comprises a relatively dense and firm material.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: October 11, 2005
    Assignee: Denver Mattress LLC
    Inventors: Barney D. Visser, Robert L. Rensink
  • Patent number: 6895620
    Abstract: In one embodiment, a mattress is constructed of a core having a first side and a second side. A first padding layer is positioned at the first side of the core and comprises a foam material having contoured surface facing away from the core. A second padding layer of a foam material is positioned adjacent the contoured surface of the first padding layer.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: May 24, 2005
    Assignee: Denver Mattress Co., LLC
    Inventor: Robert L Rensink
  • Publication number: 20040148706
    Abstract: A mattress comprises a core, a first padding layer and a second padding layer positioned on top of the core. A bottom support layer is disposed below the core. The bottom support layer is relatively dense and firm to support the core.
    Type: Application
    Filed: November 10, 2003
    Publication date: August 5, 2004
    Applicant: Denver Mattress Co. LLC
    Inventors: Barney D. Visser, Robert L. Rensink
  • Patent number: 6643876
    Abstract: A mattress comprises a core of springs having a fabric covering, such as fabric pockets. A top padding layer is positioned on top of the core, and a bottom support layer is disposed below the core. The bottom support layer is bonded to the fabric covering to couple the bottom support layer to the core.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: November 11, 2003
    Assignee: Denver Mattress Co., LLC
    Inventors: Barney D. Visser, Robert L. Rensink
  • Publication number: 20030093864
    Abstract: A mattress comprises a core of springs having a fabric covering, such as fabric pockets. A top padding layer is positioned on top of the core, and a bottom support layer is disposed below the core. The bottom support layer is bonded to the fabric covering to couple the bottom support layer to the core.
    Type: Application
    Filed: November 21, 2001
    Publication date: May 22, 2003
    Inventors: Barney D. Visser, Robert L. Rensink
  • Patent number: 5259079
    Abstract: A double bed arrangement having a combination mattress including a liquid filled side and a non-liquid filled cushion side. A compressible foam tray holds the non-liquid cushion side in a first portion or half of the tray with the liquid-filled cushion being located in a second portion or half of the tray. Preferably, the liquid filled cushion comprises a plurality of water filled tubes. A first waterproof liner covers the foam tray and a second waterproof liner covers a bottom surface, side surface, and at least a peripheral portion of the top surface of the non-liquid filled cushion.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: November 9, 1993
    Assignee: Big Sur Waterbeds, Inc.
    Inventors: Barney D. Visser, Robert L. Rensink