Dilatant fluid based object movement control mechanism

US11971056B2 · kind B2 · utility

Assignee

• Moshun, LLC · US

Inventors

• Timothy John Boundy · Deer Park, US
• Steven Michael Barger · Bartlett, US
• Terence Michael Lydon · Westmont, US
• Richard Michael Lang · Vaio Moiago, US
• Wilfredo Gonzalez, Jr. · Plainfield, US
• Darren Michael Boundy · Long Grove, US
• Eric McHugh · Naperville, US
• David Schuda · Wheaton, US
• George L. Wilson, IV · Kalamazoo, US
• Gary W. Grube · Rochester, US
• Jason K. Resch · Chicago, US
• Mario F. DeRango · Cary, US
• John Edward Buchalo · South Barrington, US
• Richard A. Herbst · Clarendon Hills, US
• Kurt Estes · South Bend, US
• Evan Anderson · Naples, US

Key dates

• Filing date: Oct 29, 2021
• Grant date: Apr 30, 2024
• Expiry date: Mar 4, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2238/045
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A head unit device for controlling motion of an object includes a chamber filled with a shear thickening fluid (STF) and a piston. The piston is housed within the chamber and exerts pressure against the STF from a force applied to the piston from the object. The STF is configured to have a decreasing viscosity in response to a first range of shear rates and an increasing viscosity in response to a second range of shear rates. The piston includes at least one piston bypass between opposite sides of the piston that controls flow of the STF between the opposite sides of the piston to selectively react with a shear threshold effect of the first range of shear rates or the second range of shear rates.