Fuel tank air pocket removal device

Patent · Tue Oct 08 04:00:00 EDT 1991

OSTI ID:5720283

Wilson, II, C N

This paper describes a device for the removal of air pockets from filled underground fuel storage tanks. It comprises: a hollow rigid guide column of sufficient length to extend through a fuel inlet opening of the storage tank to the bottom thereof; a rotatable assembly affixed to the lower end of the column and containing guide means for facilitating the passage of a hose from the guide column to the most distant point of the walls of the storage tank; a hose slidably mounted within and extendable from and retractable into the guide column and having means for maintaining the air hose in a plane essentially parallel to the bottom of the storage tank; a first end of a tubular means connected to a first end of the hose, the tubular means comprising flotation means, the flotation means causing a second end of the tubular means to contact the air pocket; and means on a second end of the hose for extending and retracting the hose through the guide column so as to reach any point within the storage tank.

• Assignee: NOV; NOV-92-003330; EDB-92-066228
• Patent Number(s): A; US 5054312
• Application Number: PPN: US 7-405055
• OSTI ID: 5720283
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
022000* -- Petroleum-- Transport
Handling
& Storage
42 ENGINEERING
420205 -- Engineering-- Transport & Storage Facilities-- (1980-)
422000 -- Engineering-- Mining & Underground Engineering-- (1980-)
AIR
CONTAINERS
ENERGY SOURCES
EQUIPMENT
FLUIDS
FOSSIL FUELS
FUELS
GASES
PETROLEUM
REMOVAL
STORAGE
STORAGE FACILITIES
TANKS
UNDERGROUND STORAGE