US 11,713,795 B2
Vibration dampening system
Salam Rahmatalla, Coralville, IA (US); Eric C. Frick, Coralville, IA (US); Charles W. Harris, Jr., Coralville, IA (US); and Varun Chalasani, Coralville, IA (US)
Assigned to ActiBioMotion, LLC, Coralville, IA (US); and University of Iowa Research Foundation, Iowa City, IA (US)
Filed by ActiBioMotion, LLC, Coralville, IA (US); and University of Iowa Research Foundation, Iowa City, IA (US)
Filed on May 28, 2021, as Appl. No. 17/333,464.
Claims priority of provisional application 63/031,758, filed on May 29, 2020.
Prior Publication US 2021/0372502 A1, Dec. 2, 2021
Int. Cl. F16F 15/18 (2006.01)
CPC F16F 15/18 (2013.01) [F16F 2222/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system comprising:
a seat cover that is at least partially flexible and attached to a frame;
a transmission unit comprising at least one rotational device connected to or part of the frame, wherein the seat cover contacts a surface of the at least one rotational device; and
a vibration dampening unit mechanically connected to the transmission unit,
wherein translational movement of the seat cover causes rotational movement of the at least one rotational device, which rotational movement is, in turn, transmitted to the vibration dampening unit via the transmission unit,
wherein the vibrational dampening unit comprises a friction plate with a variable coefficient of friction.