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:
Mar. 19, 1985
Filed:
Nov. 15, 1982
Nathan R Long, Grosse Ile, MI (US);
Howard L Anderson, Southgate, MI (US);
Diversey Wyandotte Corporation, Wyandotte, MI (US);
Abstract
An eductor pump for withdrawing a feed liquid from a container, comprising a tubular body having a venturi element mounted inside and near the lower end of the tubular body; a conduit for feeding a drive liquid to the venturi element so that the drive liquid can flow through the venturi element and be directed upwardly in the tubular body; a feed liquid access opening in the closed lower end of the tubular body and a passageway from said access opening to the upstream side of the venturi element whereby feed liquid can be inspirated into upward flow, and admixture with, a stream of drive liquid flowing out of the venturi element; an outlet to remove a mixed stream of feed liquid and drive liquid from the upper part of the tubular body; and a one way valve mounted in the feed liquid access opening.