Core disruptive accident margin seal

Patent · 31 December 1977

OSTI ID:863180

Garin, John ^[1]; Belsick, James C ^[2]

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1. Oak Ridge, TN
2. Washington Township, Fayette County, PA

An apparatus for sealing the annulus defined between a substantially cylindrical rotatable first riser assembly and plug combination disposed in a substantially cylindrical second riser assembly and plug combination of a nuclear reactor system. The apparatus comprises a flexible member disposed between the first and second riser components and attached to a metal member which is attached to an actuating mechanism. When the actuating mechanism is not actuated, the flexible member does not contact the riser components thus allowing the free rotation of the riser components. When desired, the actuating mechanism causes the flexible member to contact the first and second riser components in a manner to block the annulus defined between the riser components, thereby sealing the annulus between the riser components.

• Research Organization: Westinghouse Electric Corp., Madison, Pa. (USA)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4113564
• OSTI ID: 863180
• Country of Publication: United States
• Language: English

Related Subjects

/376/49/220/976/
accident
accident margin
actuated
actuating
actuating mechanism
allowing
annulus
annulus defined
apparatus
apparatus comprise
apparatus comprises
assembly
attached
block
causes
combination
combination disposed
components
comprises
contact
core
core disruptive
cylindrical
cylindrical rotatable
defined
desired
disposed
disruptive
disruptive accident
flexible
free
manner
margin
margin seal
mechanism
metal
nuclear
nuclear reactor
plug
plug combination
reactor
riser
riser assembly
rotatable
rotation
seal
sealing
substantially
substantially cylindrical