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:
Jul. 02, 1996
Filed:
Feb. 23, 1995
Axel Riel, Frankenthal, DE;
KSB Aktiengesellschaft, Frankenthal, DE;
Abstract
A centrifugal pump includes a liquid-filled interior space that is sealed by a thrust cover. The thrust cover is provided with an opening for the introduction of a shaft on the side of the thrust cover remote from the pump's interior space. A first counter abutment is disposed in the thrust cover for a first slip ring shaft seal. The thrust cover is provided with a second counter abutment for a second slip ring seal. The first and second counter abutments are disposed at different diameters and are axially offset with respect to each other. The radial distance between the first and second counter abutments is of a predetermined magnitude so that the first slip ring seal and the second slip ring seal are disposed at two different diameters.