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. 14, 2009
Filed:
Apr. 04, 2005
Applicants:
Simon Ian Hogg, Rugby, GB;
Karl Urlichs, Röthenbach/Pegn., DE;
Inventors:
Simon Ian Hogg, Rugby, GB;
Karl Urlichs, Röthenbach/Pegn., DE;
Assignee:
Alstom Technology Ltd, Baden, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J 15/447 (2006.01); F01D 11/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
In sealing arrangementbetween first and second relatively rotatable bodies of a machine such as a steam turbine, a relatively high pressure pexists on one side of the sealing arrangement and a relatively low pressure pexists on the other side. The sealing arrangement comprises a series of sealing elements or units S, S, S, at least one of which comprises a brush seal. A seal bypassing device, preferably comprising a pressure relief valve-limits the pressure drop across the brush seal.