Patents by Inventor Bob Rensink

Bob 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: 11140996
    Abstract: A foam core mattress including a cushion layer having a foam with an IFD of between about 6 to about 18 and a density of between about 1.5 lb./ft3 to about 4 lb./ft3. The mattress includes a core that is coupled with a bottom surface of the cushion layer. The core includes a matrix of rebond foam pieces that includes at least 5% foam pieces having volumes of less than about 0.5 in3, at least 40% foam pieces having volumes of between about 0.5 and 2.0 in3, and at least 20% foam pieces having volumes of greater than 2.0 in3, wherein the core has an IFD of between about 21 and 36. The mattress includes a base layer coupled with a bottom surface of the core. The base layer has an IFD of between about 28 to about 70 and a density of between 1.5 lb./ft3 to about 2 lb./ft3.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: October 12, 2021
    Assignee: Denver Mattress Co., LLC
    Inventor: Bob Rensink
  • Publication number: 20200205582
    Abstract: A foam core mattress including a cushion layer having a foam with an IFD of between about 6 to about 18 and a density of between about 1.5 lb./ft3 to about 4 lb./ft3. The mattress includes a core that is coupled with a bottom surface of the cushion layer. The core includes a matrix of rebond foam pieces that includes at least 5% foam pieces having volumes of less than about 0.5 in3, at least 40% foam pieces having volumes of between about 0.5 and 2.0 in3, and at least 20% foam pieces having volumes of greater than 2.0 in3, wherein the core has an IFD of between about 21 and 36. The mattress includes a base layer coupled with a bottom surface of the core. The base layer has an IFD of between about 28 to about 70 and a density of between 1.5 lb./ft3 to about 2 lb./ft3.
    Type: Application
    Filed: December 31, 2019
    Publication date: July 2, 2020
    Inventor: Bob Rensink
  • Patent number: 10537186
    Abstract: A foam core mattress including a cushion layer having a foam with an IFD of between about 6 to about 18 and a density of between about 1.5 lb./ft3 to about 4 lb./ft3. The mattress includes a core that is coupled with a bottom surface of the cushion layer. The core includes a matrix of rebond foam pieces that includes at least 5% foam pieces having volumes of less than about 0.5 in3, at least 40% foam pieces having volumes of between about 0.5 and 2.0 in3, and at least 20% foam pieces having volumes of greater than 2.0 in3, wherein the core has an IFD of between about 21 and 36. The mattress includes a base layer coupled with a bottom surface of the core. The base layer has an IFD of between about 28 to about 70 and a density of between 1.5 lb./ft3to about 2 lb./ft3.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: January 21, 2020
    Assignee: Denver Mattress Co., LLC
    Inventor: Bob Rensink
  • Publication number: 20190053633
    Abstract: A foam core mattress including a cushion layer having a foam with an IFD of between about 6 to about 18 and a density of between about 1.5 lb./ft3 to about 4 lb./ft3. The mattress includes a core that is coupled with a bottom surface of the cushion layer. The core includes a matrix of rebond foam pieces that includes at least 5% foam pieces having volumes of less than about 0.5 in3, at least 40% foam pieces having volumes of between about 0.5 and 2.0 in3, and at least 20% foam pieces having volumes of greater than 2.0 in3, wherein the core has an IFD of between about 21 and 36. The mattress includes a base layer coupled with a bottom surface of the core. The base layer has an IFD of between about 28 to about 70 and a density of between 1.5 lb.
    Type: Application
    Filed: July 26, 2018
    Publication date: February 21, 2019
    Inventor: Bob Rensink
  • Publication number: 20180125258
    Abstract: A mattress is constructed of a core comprising a matrix of foam pieces that are bonded together. The core has a thickness in the range from about 1.5 inches to about 10 inches, and more particularly from about 3 inches to about 8 inches, a density of about 4 pounds to 8 pounds per cubic foot, and an IFD of about 28 to 65. The core has a top surface and a bottom surface. A base layer is coupled to the bottom surface of the core, and a cushion layer is coupled to the top surface.
    Type: Application
    Filed: October 11, 2017
    Publication date: May 10, 2018
    Inventor: Bob Rensink
  • Patent number: 8938824
    Abstract: Embodiments of the invention provide covers for bed components, such as mattresses and/or box-springs, which limit bed bug access to the bed component. According to one embodiment, a cover for a bed component may include an opening that provides access to an interior of the cover and through which a bed component (e.g., a mattress or box-spring) may be inserted, a zipper coupled along the opening, a zipper mechanism slidable along the zipper to couple opposing teeth of the zipper to allow the opening to be zipped closed to enclose the bed component within the cover, a first flap foldable and securable over a distal end of the zipper, a second flap foldable and securable over the first flap, and a barrier material disposed between the second flap and the zipper for applying pressure to the zipper to minimize a gap between the zipper and the first flap.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: January 27, 2015
    Assignee: Denver Mattress Co., LLC
    Inventors: Bob Rensink, Jonny Amendola
  • Patent number: 8856985
    Abstract: A connector system includes at least one mattress connector that is coupled to a mattress. The mattress connectors are coupled at the head end and at the foot end of the mattress. A topper connector is coupled to a topper at a head end and a foot end of the topper. A plurality of straps are employed to couple the mattress to the topper, with the straps being coupled to the mattress connectors and the proper connectors.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: October 14, 2014
    Assignee: Denver Mattress Co. LLC
    Inventors: Bob Rensink, Jonathan Amendola
  • Publication number: 20130192001
    Abstract: A connector system includes at least one mattress connector that is coupled to a mattress. The mattress connectors are coupled at the head end and at the foot end of the mattress. A topper connector is coupled to a topper at a head end and a foot end of the topper. A plurality of straps are employed to couple the mattress to the topper, with the straps being coupled to the mattress connectors and the proper connectors.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 1, 2013
    Applicant: Denver Mattress Co., LLC
    Inventors: Bob Rensink, Jonathan Amendola
  • Publication number: 20130111672
    Abstract: A mattress is constructed of a core comprising a matrix of foam pieces that are bonded together. The core has a thickness in the range from about 1.5 inches to about 10 inches, and more particularly from about 3 inches to about 8 inches, a density of about 4 pounds to 8 pounds per cubic foot, and an IFD of about 28 to 65. The core has a top surface and a bottom surface. A base layer is coupled to the bottom surface of the core, and a cushion layer is coupled to the top surface.
    Type: Application
    Filed: November 1, 2012
    Publication date: May 9, 2013
    Inventor: Bob Rensink
  • Publication number: 20110173757
    Abstract: A cushion may be constructed of a spacer material having a top layer, a bottom layer and a plurality of loosely arranged spacer elements that extend between the top and bottom layers so as to maintain the top layer and the bottom layer spaced apart from each other. An elastomeric gel material is incorporated into the top layer and/or the bottom layer. The gel material may also extend into at least a portion of the spacer elements.
    Type: Application
    Filed: March 4, 2011
    Publication date: July 21, 2011
    Applicant: Denver Mattress Co. LLC
    Inventors: Bob Rensink, Jonathan Amendola