The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11698065 B1

Date of Patent:

Jul. 11, 2023

Filed:

Oct. 10, 2022

System and method for operating a pump in a humidifier

Applicant:

Koninklijke Philips N.v., Eindhoven, NL;

Inventor:

Michael B. Knepper, Friedens, PA (US);

Assignee:

KONINKLIJKE PHILIPS N.V., Eindhoven, NL;

Attorney:

Primary Examiner:

Nathan C Zollinger

Assistant Examiner:

Geoffrey S Lee

Int. Cl.

CPC ...

F04B 43/04 (2006.01); F04B 49/06 (2006.01); A61M 16/16 (2006.01); F04B 43/02 (2006.01); F04D 25/08 (2006.01); A61M 16/10 (2006.01); F04B 45/047 (2006.01); A61M 11/04 (2006.01); A61M 16/00 (2006.01); F04D 29/70 (2006.01); F04B 43/00 (2006.01); F04B 17/04 (2006.01); A61M 16/06 (2006.01);

U.S. Cl.

CPC ...

F04B 43/04 (2013.01); A61M 11/042 (2014.02); A61M 16/0003 (2014.02); A61M 16/0057 (2013.01); A61M 16/0069 (2014.02); A61M 16/024 (2017.08); A61M 16/109 (2014.02); A61M 16/1075 (2013.01); A61M 16/16 (2013.01); A61M 16/161 (2014.02); F04B 43/0081 (2013.01); F04B 43/02 (2013.01); F04B 45/047 (2013.01); F04B 49/06 (2013.01); F04D 25/08 (2013.01); F04D 29/705 (2013.01); A61M 16/06 (2013.01); A61M 2016/0018 (2013.01); A61M 2016/0027 (2013.01); A61M 2205/18 (2013.01); A61M 2205/21 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3368 (2013.01); A61M 2205/3653 (2013.01); A61M 2205/75 (2013.01); A61M 2205/7581 (2013.01); F04B 17/04 (2013.01);

Abstract

A pump arrangement for powering a pump in providing a controlled volume of water to a drip nozzle in a drip-feed humidifier. The pump arrangement includes: a pump having a solenoid; a processing unit; and a power supply electrically connected to the solenoid via a switch which is controlled by the processing unit. The power supply is structured to supply power to the solenoid via the switch. The processing unit is programmed to modulate the power provided to the solenoid via the switch such that the power is supplied to the solenoid according to a mirror image power profile for each actuation of the solenoid for retracting the armature. The mirror image power profile includes: an initial portion which decreases at a third overall rate, an intermediate portion which decreases at a second overall rate different than the third overall rate, and a final portion which increases at a first overall rate.

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