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).
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Patent number: 11813917Abstract: 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: GrantFiled: February 2, 2021Date of Patent: November 14, 2023Assignee: Oshkosh Defense, LLCInventors: Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
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Publication number: 20220065322Abstract: 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: ApplicationFiled: November 9, 2021Publication date: March 3, 2022Applicant: Oshkosh Defense, LLCInventors: Paul DUMITRU, Aaron ROSITCH, Erik ELLIFSON, Patrick DILLMAN, Kai SCHUBART, Robert SOLLENSKOG
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Patent number: 11199239Abstract: 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: GrantFiled: February 14, 2019Date of Patent: December 14, 2021Assignee: Oshkosh Defense, LLCInventors: Paul Dumitru, Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
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Publication number: 20210155063Abstract: 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: ApplicationFiled: February 2, 2021Publication date: May 27, 2021Applicant: Oshkosh Defense, LLCInventors: Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
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Patent number: 10940728Abstract: 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: GrantFiled: April 27, 2020Date of Patent: March 9, 2021Assignee: Oshkosh Defense, LLCInventors: Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
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Publication number: 20200254840Abstract: 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: ApplicationFiled: April 27, 2020Publication date: August 13, 2020Applicant: Oshkosh Defense, LLCInventors: Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
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Patent number: 10632805Abstract: 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: GrantFiled: April 19, 2018Date of Patent: April 28, 2020Assignee: Oshkosh Defense, LLCInventors: Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
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Publication number: 20190178329Abstract: 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: ApplicationFiled: February 14, 2019Publication date: June 13, 2019Applicant: Oshkosh Defense, LLCInventors: Paul Dumitru, Aaron Rositch, Erik Ellifson, Patrick Dillman, Kai Schubart, Robert Sollenskog
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Publication number: 20090211856Abstract: 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: ApplicationFiled: February 22, 2008Publication date: August 27, 2009Inventor: Robert Sollenskog