US 12,259,017 B2
Sound isolation suspension system
Kevin Arnold Miller, Eindhoven (NL)
Assigned to KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Appl. No. 17/770,699
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Oct. 20, 2020, PCT No. PCT/EP2020/079533
§ 371(c)(1), (2) Date Apr. 21, 2022,
PCT Pub. No. WO2021/078757, PCT Pub. Date Apr. 29, 2021.
Claims priority of provisional application 62/923,865, filed on Oct. 21, 2019.
Prior Publication US 2022/0381319 A1, Dec. 1, 2022
Int. Cl. F16F 15/073 (2006.01); F16F 7/116 (2006.01); H02K 5/24 (2006.01)
CPC F16F 15/073 (2013.01) [F16F 7/116 (2013.01); H02K 5/24 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A suspension system configured to minimize transmission of acoustic and vibrational energy in an oral irrigator device, comprising:
a rigid support;
an operative element positioned within the rigid support and comprising a drive frequency when the device is in operation, wherein the operative element is a pump assembly; and
a resilient element engaging the rigid support and configured to create a resilient force against six degrees of freedom of vibrations generated by the operative element;
wherein the natural frequency in one or more of the degrees of freedom of the suspension system, in the degrees of freedom of interest, are tuned into a narrow resonant frequency range by the suspension system, and wherein the resonant frequency is less than the drive frequency; and
wherein the resilient element is a non-linear resilient element connecting the operative element with the rigid support and centering the operative element within a low force region of the non-linear resilient element and an intended operating position free of other components except for the non-linear resilient element when positioned upright for normal operation under gravitational load.