Patents by Inventor Robert Sollenskog

Robert Sollenskog 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: 11813917
    Abstract: A vehicle includes a support arm and a suspension element. The suspension element is rotatably connected to a support arm of a vehicle via a mounting pin that extends through an opening on the suspension element, a thrust washer, and a seal. The combination of elements prevent debris from migrating into the connection. The suspension element is configured to connect to a structural element of the vehicle via an upper mount. The suspension element may include a recoil damper having a piston with a plurality of grooves arranged to balance the forces on the piston during and after a recoil event or jounce.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: November 14, 2023
    Assignee: Oshkosh Defense, LLC
    Inventors: Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
  • Publication number: 20220065322
    Abstract: A damper assembly includes a tubular member including a sidewall and a shoulder. The damper assembly includes a rod and a piston coupled to the rod. A secondary piston has a second contact surface, an opposing second surface, an inner cylindrical face defining a central aperture that receives the rod, and an outer cylindrical face. The opposing second surface includes one or more surface grooves, extending between the inner cylindrical face and the outer cylindrical face along the opposing second surface, and one or more bypass orifices disposed about the body member. The bypass orifices extend along the inner cylindrical face between the second contact surface and the opposing second surface. The secondary piston defines a channel extending between the inner cylindrical face and an outer periphery of the body member. The channel and bypass orifices form a fluid flow path when the piston contacts the secondary piston.
    Type: Application
    Filed: November 9, 2021
    Publication date: March 3, 2022
    Applicant: Oshkosh Defense, LLC
    Inventors: Paul DUMITRU, Aaron ROSITCH, Erik ELLIFSON, Patrick DILLMAN, Kai SCHUBART, Robert SOLLENSKOG
  • Patent number: 11199239
    Abstract: A damper assembly includes a tubular member including a sidewall and a shoulder. The damper assembly includes a rod and a piston coupled to the rod. A secondary piston has a second contact surface, an opposing second surface, an inner cylindrical face defining a central aperture that receives the rod, and an outer cylindrical face. The opposing second surface includes one or more surface grooves, extending between the inner cylindrical face and the outer cylindrical face along the opposing second surface, and one or more bypass orifices disposed about the body member. The bypass orifices extend along the inner cylindrical face between the second contact surface and the opposing second surface. The secondary piston defines a channel extending between the inner cylindrical face and an outer periphery of the body member. The channel and bypass orifices form a fluid flow path when the piston contacts the secondary piston.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: December 14, 2021
    Assignee: Oshkosh Defense, LLC
    Inventors: Paul Dumitru, Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
  • Publication number: 20210155063
    Abstract: A vehicle includes a support arm and a suspension element. The suspension element is rotatably connected to a support arm of a vehicle via a mounting pin that extends through an opening on the suspension element, a thrust washer, and a seal. The combination of elements prevent debris from migrating into the connection. The suspension element is configured to connect to a structural element of the vehicle via an upper mount. The suspension element may include a recoil damper having a piston with a plurality of grooves arranged to balance the forces on the piston during and after a recoil event or jounce.
    Type: Application
    Filed: February 2, 2021
    Publication date: May 27, 2021
    Applicant: Oshkosh Defense, LLC
    Inventors: Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
  • Patent number: 10940728
    Abstract: A vehicle includes a support arm and a suspension element. The suspension element is rotatably connected to a support arm of a vehicle via a mounting pin that extends through an opening on the suspension element, a thrust washer, and a seal. The combination of elements prevent debris from migrating into the connection. The suspension element is configured to connect to a structural element of the vehicle via an upper mount. The suspension element may include a recoil damper having a piston with a plurality of grooves arranged to balance the forces on the piston during and after a recoil event or jounce.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: March 9, 2021
    Assignee: Oshkosh Defense, LLC
    Inventors: Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
  • Publication number: 20200254840
    Abstract: A vehicle includes a support arm and a suspension element. The suspension element is rotatably connected to a support arm of a vehicle via a mounting pin that extends through an opening on the suspension element, a thrust washer, and a seal. The combination of elements prevent debris from migrating into the connection. The suspension element is configured to connect to a structural element of the vehicle via an upper mount. The suspension element may include a recoil damper having a piston with a plurality of grooves arranged to balance the forces on the piston during and after a recoil event or jounce.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Applicant: Oshkosh Defense, LLC
    Inventors: Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
  • Patent number: 10632805
    Abstract: A vehicle includes a support arm and a suspension element. The suspension element is rotatably connected to a support arm of a vehicle via a mounting pin that extends through an opening on the suspension element, a thrust washer, and a seal. The combination of elements prevent debris from migrating into the connection. The suspension element is configured to connect to a structural element of the vehicle via an upper mount. The suspension element may include a recoil damper having a piston with a plurality of grooves arranged to balance the forces on the piston during and after a recoil event or jounce.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: April 28, 2020
    Assignee: Oshkosh Defense, LLC
    Inventors: Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
  • Publication number: 20190178329
    Abstract: A damper assembly includes a tubular member including a sidewall and a shoulder. The damper assembly includes a rod and a piston coupled to the rod. A secondary piston has a second contact surface, an opposing second surface, an inner cylindrical face defining a central aperture that receives the rod, and an outer cylindrical face. The opposing second surface includes one or more surface grooves, extending between the inner cylindrical face and the outer cylindrical face along the opposing second surface, and one or more bypass orifices disposed about the body member. The bypass orifices extend along the inner cylindrical face between the second contact surface and the opposing second surface. The secondary piston defines a channel extending between the inner cylindrical face and an outer periphery of the body member. The channel and bypass orifices form a fluid flow path when the piston contacts the secondary piston.
    Type: Application
    Filed: February 14, 2019
    Publication date: June 13, 2019
    Applicant: Oshkosh Defense, LLC
    Inventors: Paul Dumitru, Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
  • Publication number: 20090211856
    Abstract: A disc brake mechanism including a generally annular rotor ring having an outer diameter and an inner diameter, a plurality of teeth extending from the inner diameter of the rotor ring, a generally cylindrical drive shaft head defining a major axis, and a plurality of rounded connection wedges extending therefrom. A pair of brake pads are disposed on opposite sides of the rotor, a caliper is connected to a non-rotating portion of a vehicle, a piston is operationally connected to the caliper and disposed adjacent a brake pad, and a pressure plate is operationally connected adjacent a brake pad and positioned opposite the rotor from the piston. Force members are operationally connected to the brake pads.
    Type: Application
    Filed: February 22, 2008
    Publication date: August 27, 2009
    Inventor: Robert Sollenskog