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. 29, 1987
Filed:
Sep. 18, 1986
Helmut Bronowski, Heidenheim, DE;
Christian Dahlke, Heidenheim, DE;
J. M. Voith GmbH, , DE;
Abstract
A cover for turbines or pumps which is substantially less expensive than a cover having a cast construction. The cover is made of welded metal plates in a shape which generally corresponds to that of Kaplan type turbines, pumps or the like, and includes a number of thick walled rings and shells having a conical shape or envelope. The cover has a flat ring which is supported between the outer covering of the machine and a first, conical shell which surrounds the shaft of the machine and tapers narrower toward the runner of the machine. A second shell, also conical, defines a lesser conical angle than the first shell. It extends from the exterior of the first shell and axially toward the runner, surrounding the shaft, and is disposed for directing radially inward water flow axially toward the runner. At least one bearing is mounted between the flat ring and the shaft. The flat ring and the first and second shells are sheet metal and are welded together.