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.:
Date of Patent:
May. 05, 2026
Filed:
Dec. 11, 2020
Leggett & Platt Canada Co., Halifax, CA;
Krzysztof Zulauf, Windsor, CA;
Maxime Samain, Harelbeke, BE;
Eric Michalak, Canton, MI (US);
Robert J. Mcmillen, Tecumseh, CA;
Wade O'moore, Belle River, CA;
Horia Blendea, LaSalle, CA;
Paul Tindall, Harrow, CA;
Stefano Nicola, Windsor, CA;
Leggett & Platt Canada Co., Halifax, CA;
Abstract
A pump assembly includes a housing with an air inlet and an air outlet, a motor supported by the housing, the motor including a drive shaft rotatable about a drive shaft axis, a first plurality of diaphragms supported by the housing, the first plurality of diaphragms positioned along a first plane, and a second plurality of diaphragms supported by the housing, the second plurality diaphragms positioned along a second plane, the second plane spaced apart from the first plane. Rotation of the drive shaft is operable to move each diaphragm of the first plurality of diaphragms and each diaphragm of the second plurality of diaphragms from an intake position to a compression position to pump a fluid from the air inlet through the air outlet.