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:
Aug. 24, 1976
Filed:
Sep. 12, 1975
Applicant:
Inventors:
Igor Martynovich Kalnin, Moscow, SU;
Beniamin Lvovich Tsirlin, Moscow, SU;
Elena Zalmanovna Bukhter, Moscow, SU;
Alexandra Dmitrievna Terenina, Moscow, SU;
Galina Ivanovna Eremkina, Moscow, SU;
Andrei Ivanovich Poteiko, Kazan, SU;
Khanon Yakovlevich Breslov, Kazan, SU;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D / ; F04D / ;
U.S. Cl.
CPC ...
4151 / ; 4152 / ; 4151 / ;
Abstract
A multiple-stage centrifugal compressor without a horizontal joint wherein the stator consists of a package of interconnected diaphragms with cylindrical holes for the installation of the labyrinth seal holders. The cylindrical holes vary in diameter along the longitudinal axis of the compressor, said diameter increasing in steps towards end of the diaphragm package.