Hydraulic and earth engineering – Marine structure or fabrication thereof – With work deck vertically adjustable relative to floor
Patent
1983-08-01
1986-03-11
Lee, John
Hydraulic and earth engineering
Marine structure or fabrication thereof
With work deck vertically adjustable relative to floor
405171, 138121, 128 6, 350 9625, G02B 517
Patent
active
045751854
ABSTRACT:
The sealed shell of a nuclear steam generator is penetrated through a fluid lock by an elongated assembly including an axial fiber optic cable. Fluid pressure chambers within the assembly are selectively pressured to control the movement of the fiber optic head in visual inspection within the shell. Liquid is selectively introduced into the chambers to control buoyancy of the assembly.
REFERENCES:
patent: 3756034 (1973-09-01), Lochridge et al.
Innes, Jr. Charles B.
Lareau John P.
Wentzell Timothy H.
Combustion Engineering Inc.
Lee John
Rushin Lester
Wade Arthur L.
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