Methods and apparatuses for pump sealing during leakage events

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10777329
APP PUB NO 20130170594A1
SERIAL NO

13340675

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
GE-HITACHI NUCLEAR ENERGY AMERICAS LLC3901 CASTLE HAYNE ROAD WILMINGTON NC 28401

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ayer, Robert A Wilmington, US 6 10
Bass, John R Wilmington, US 16 28
Ginsberg, Robert J Wilmington, US 10 18
Robert, Curt J Wilmington, US 3 7

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