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.:

US 7338252 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 04, 2008

Filed:

Oct. 22, 2002
Applicant:

Paul Meuter, Seuzach, CH;

Inventor:

Paul Meuter, Seuzach, CH;

Assignee:

Sulzer Pumpen AG, Winterthur, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A pump for the transporting of fluids and/or of mixtures of fluids includes a housing () and at least one restrictor gap seal which is provided in the housing () to reduce the pressure in a restrictor gap along a rotatable part () of the pump, wherein the restrictor gap seal is formed as a brush seal arrangement (). The brush seal arrangement () contains one or more individual brush seals (') which include as sealing members a plurality of sealingly arranged fibers, bristles and/or wires () which are distributed and fastened in ring form and whose free ends extend towards the surface to be sealed.


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