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. 17, 2018
Filed:
May. 12, 2011
Robin D. Sprague, Wilmington, NC (US);
Bruce J. Lentner, Wilmington, NC (US);
Emanuel Klein, Wilmington, NC (US);
David B. Drendel, San Jose, CA (US);
Bret E. Nelson, Wilmington, NC (US);
Robin D. Sprague, Wilmington, NC (US);
Bruce J. Lentner, Wilmington, NC (US);
Emanuel Klein, Wilmington, NC (US);
David B. Drendel, San Jose, CA (US);
Bret E. Nelson, Wilmington, NC (US);
GE-HITACHI NUCLEAR ENERGY AMERICAS LLC, Wilmington, NC (US);
Abstract
A method and apparatus for a boiling water reactor (BWR) jet pump inlet mixer compliant stop. The inlet mixer compliant stop may be installed in a pocket area between a riser pipe and an inlet mixer of a BWR jet pump assembly. The inlet mixer compliant stop includes a main body and a foot that are separated via the tightening of one or more jacking bolts used to connect the main body and the foot. A cold spring attached to the main body provides a lateral force that is imparted on the inlet mixer, to force the inlet mixer away from a centerline of the riser pipe. A precise lateral force may be imparted on the inlet mixer by gauging a width of a gap between opposing bosses on a front face of the main body and a distal end of the cold spring. The inlet mixer compliant stop imparts a greater lateral force on the inlet mixer as the jacking bolts are tightened, further separating the main body from the foot, as the gap between the opposing bosses is reduced.