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.

Date of Patent:
Feb. 25, 1992

Filed:

Jul. 16, 1990
Applicant:
Inventors:

Duane C Mosure, Poplar Grove, IL (US);

Norman E Houtz, Rockford, IL (US);

Assignee:

Sundstrand Corporation, Rockford, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D / ; F01D / ;
U.S. Cl.
CPC ...
415207 ; 4152141 ; 4152245 ; 403337 ; 417423012 ; 417423014 ;
Abstract

This invention relates to a centrifugal pump, bearing housing, diffuser ring, and volute housing fastening arrangement in which a plurality of containment pump bolts pass through, in one direction, corresponding openings in the bearing housing, the diffuser ring, and the volute housing, whereas gear box mounting bolts pass through in an opposite direction corresponding openings in the bearing housing, the diffuser ring, and the volute housing. The mounting bolts are secured in a portion of a gear box. The mounting bolts therefore provide a function of providing pressure containment for the pump in the event that a containment pump bolt or fastener is missing or ineffective, in which case a load carried by a missing pump bolt is carried by a nearby mounting bolt. The containment pump bolts, having bolt heads adjacent the gear box, to prevent inadvertent torquing during routine maintenance.


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