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:
Sep. 22, 1998
Filed:
Dec. 18, 1997
Applicant:
Inventors:
Larry D Dixon, Forest, VA (US);
Ronald J Payne, Forest, VA (US);
William H Stafford, II, Lynchburg, VA (US);
Assignee:
Framatome Technologies, Inc., Lynchburg, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ; F03B / ;
U.S. Cl.
CPC ...
4152161 ; 4162 / ; 4162 / ; 4162 / ;
Abstract
A safety shroud of a nuclear reactor coolant pump. Capscrew heads, if broken, are prevented from separating from a nuclear reactor coolant pump having a drive shaft, an impeller secured to the drive shaft, a suction deflector secured to the impeller, and capscrews with outer heads securing the impeller and suction deflector to the drive shaft, by securing a safety shroud over the capscrew heads. The safety shroud may be secured by welding the safety shroud to the impeller or suction deflector, or by bolting the safety shroud to the distal end of the drive shaft.