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US 4,826,036 AGranted
Nozzle dam sealing system
AssigneeCombustion Engineering, Inc.
InventorsJohn T. Lewis, Harold R. Zumbrun
Life of this patent
Estimating the term…
Abstract
A nozzle dam 14 has an integral diaphragm 50 and peripheral seal 58 radially engaged by bladder 46 to seal against the nozzle dam surface 12. The bladder receives force from a surface 44 on a plunger member 42. The plunger member 42 moves with the nozzle dam securing pin 32 as it seats in socket 40. A manual toggle type action clamp 20 actuates the pin 32.
Claims6
A nozzle dam for use in sealing a steam generator nozzle which includes in combination:
- means forming a bulkhead;
- means forming a plunger movably mounted on said bulkhead;
- said plunger including a pin for engagement in a pocket in the wall of a nozzle in order to secure said bulkhead and means including a surface for applying a force mounted for movement with said pin;
- soft peripheral seal means about the periphery of said bulkhead;
- bladder means including a contained fluid between said means including a surface for applying a force and said soft peripheral seal means to exert an equalized force on the soft peripheral seal means when said plunger moves said pin into engagement with said pocket.
2 more elements
Dependencies are inferred from the claim text.