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:
Oct. 29, 1996
Filed:
Sep. 06, 1995
Applicant:
Inventors:
Hans-Ulrich Dummersdorf, Burscheid, DE;
Helmut Waldman, Leverkusen, DE;
Helmut Harle, Leverkusen, DE;
Franz-Rudolf Minz, Dormagen, DE;
Fritz Gestermann, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417420 ; 4174104 ; 417 53 ; 418104 ; 4182066 ; 277-3 ; 277 53 ;
Abstract
A pump for delivering hot, corrosive material having a shaft seal comprising a seal gap through which hot gases flow, and wherein the sealing gases also flow around the pump bearings for the purpose of cooling the bearings.