Automatic venting valve for gas storage tank

Patent · Tue Dec 02 04:00:00 EST 1986

OSTI ID:7040248

Johnson, H

A control valve is described for blocking atmospheric venting of gas fumes contained within a gasoline storage tank during tanker refill operations. The gasoline tank includes a venting tube coupled to open space within the top of the tank to provide air intake for pressure equalization as gasoline is gradually removed from the tank, the control valve comprising: a. a rigid, tubular valve casing having a top opening, a bottom opening and a flow channel therebetween; b. means for attaching the bottom end of the casing to an upper end of the venting tube such that the valve flow channel forms a continuation venting path for the venting tube; c. first and second valve seats and an intermediate seating member coupled to the casing and at least partially contained within the flow channel. The seating member is configured in shape and size to form restricted air space between the seating member and a surrounding wall of the flow channel to be reversibly displaceable in response to fume exhaust expelled during refill operations.

• Assignee: HMH, Inc., West Valley City, UT
• Patent Number(s): US 4625778
• OSTI ID: 7040248
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
024000* -- Petroleum-- Storage-- (-1989)
42 ENGINEERING
420205 -- Engineering-- Transport & Storage Facilities-- (1980-)
AEROSOLS
AIR FLOW
COLLOIDS
CONTAINERS
CONTROL
CONTROL EQUIPMENT
DISPERSIONS
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FUELS
GAS FLOW
GASOLINE
INTAKE STRUCTURES
LIQUID FUELS
MECHANICAL STRUCTURES
PETROLEUM PRODUCTS
PRESSURE CONTROL
SEALS
SOLS
SPACE DEPENDENCE
STORAGE
STORAGE FACILITIES
TANKS
VALVES
VENTS