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:
Mar. 14, 2024
Gojo Industries, Inc., Akron, OH (US);
Stephen Casteel, Canal Fulton, OH (US);
Nick E. Ciavarella, Seven Hills, OH (US);
John J. Mcnulty, Broadview Heights, OH (US);
GOJO Industries, Inc., Akron, OH (US);
Abstract
Exemplary compact multi-chamber diaphragm pumps and dispensers for dispensing foam soap or sanitizer are disclosed herein. An exemplary pump for pumping soap or sanitizer and air separately to be mixed remote from the pump and dispensed as a foam includes a liquid pump diaphragm and a dual flapper valve, wherein a first of the dual flapper valves is a liquid inlet valve and a second of the dual flapper valves is a liquid outlet valve. The pump further includes two or more air pump diaphragms and a valve plate. The valve plate has a liquid inlet passage, a liquid outlet passage, a liquid outlet valve seat, two or more air inlet passages, two or more air inlet valve anchors and two or more air inlet valves secured to the valve plate. A pump manifold is also included, the pump manifold includes a liquid inlet valve seat.