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:
Dec. 02, 1986
Filed:
Mar. 04, 1985
Kiyoshi Ouchi, Fujisawa, JP;
Ebara Corporation, Tokyo, JP;
Abstract
A submergible motor pump assembly with easy access to any part of the assembly by dismantling minimum elements, i.e. without requiring disassembly of the whole and without requiring discharge of lubricating oil for a mechanical seal. Also, plural balance holes are provided in the main plate of the impeller, and a liner ring is disposed between the main plate and the top wall of the impeller chamber, to establish the flow passage from the tip of the impeller blades through the gap between the main plate and the top wall of the chamber to the balance holes, with flow zones restricted by the liner ring. The five part input power connector includes a tapered rubber boot clamped to a plastic cap in which the terminals are further sealed in place by a resin fill.