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:
Oct. 09, 2001
Filed:
Nov. 15, 1999
Ivar L Schoenmeyr, San Juan Capistrano, CA (US);
Aquatec Water Systems, Inc., Irvine, CA (US);
Abstract
A pump that has an inlet manifold passage with a varying cross-sectional area. The manifold passage provides fluid communication between an inlet port and a plurality of pump chambers within the pump. The varying cross-sectional area may reduce the likelihood of air being entrapped in the pump chambers. Each pump chamber may have a corresponding piston that moves in a reciprocating manner within the chamber. The pistons may be moved by a motor driven wobble plate. Movement of the pistons may pull fluid into the pump chambers through corresponding inlet valves and into an outlet port through corresponding outlet valves. The valves may cooperate with valve seats that each have an outer radius smaller than an inner radius. The pump may have an in-line check valve that controls fluid flow from an outlet manifold passage to the outlet port, and a pressure sensor in fluid communication with the outlet port. The motor may have a leak detector integrated into the metal shell and fasteners of the motor assembly.