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. 15, 2020
Filed:
Dec. 30, 2011
John R. Bass, Wilmington, NC (US);
Robert A. Ayer, Wilmington, NC (US);
Robert J. Ginsberg, Wilmington, NC (US);
Curt J. Robert, Wilmington, NC (US);
John R. Bass, Wilmington, NC (US);
Robert A. Ayer, Wilmington, NC (US);
Robert J. Ginsberg, Wilmington, NC (US);
Curt J. Robert, Wilmington, NC (US);
GE-HITACHI NUCLEAR ENERGY AMERICAS LLC, Wilmington, NC (US);
Abstract
A pump leakage mitigation device includes one or more clamp arms on an outer surface of a pump that can be driven by a biasing element to seat against a shaft of the pump to seal or reduce fluid flow through a breakdown of the pump. The biasing element engages only at threshold temperatures, such as those associated with breakdown orifice failure when additional sealing may be necessary. Clamp arms of any number and shape can be used to achieve the desired seal and based on the pump geometry. A sealant surface and/or keeping mechanism are useable with the leakage mitigation device to enhance fluid flow blockage throughout a pump failure transient scenario. Pump leakage mitigation devices are installed on an outside of a variety of different pump types and can thus be installed, actuated, manipulated, disengaged, and/or removed without having to destroy or disassemble the pump.