System for underground storage and delivery of liquid product, and recovery of leakage

Patent 4958957 Issued on September 25, 1990. Estimated Expiration Date:

March 1, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

2916179

Underground tank sump and piping system
Patent #: 4639164
Issued on: 01/27/1987
Inventor: Pugnale , et al.

Liquid spill container and method of making and installing same
Patent #: 4659251
Issued on: 04/21/1987
Inventor: Petter , et al.

Secondary containment systems especially well suited for hydrocarbon storage and delivery systems
Patent #: 4682911
Issued on: 07/28/1987
Inventor: Moreland

Spill collector assembly for liquid storage vessels
Patent #: 4696330
Issued on: 09/29/1987
Inventor: Raudman , et al.

Liquid tank spillage control system
Patent #: 4717036
Issued on: 01/05/1988
Inventor: Dundas , et al.

Security cover and housing for a well
Patent #: 4747453
Issued on: 05/31/1988
Inventor: Howard, Sr.

Double-wall underground tank and method of making
Patent #: 4781777
Issued on: 11/01/1988
Inventor: Pugnale , et al.

Overfill spillage protection device Patent #: 4793387
Issued on: 12/27/1988
Inventor: LeBlanc , et al.

Inventors

Assignee

Sun Refining & Marketing Company

Application

No. 317565 filed on 03/01/1989

US Classes:

405/55, Cavity construction220/86.1, Filling member220/560.03, INCLUDING MEANS FOR LIMITING THE DISCHARGE OR SPREAD OF CONTENTS THROUGH AN UNLIMITED OPENING IN THE CONTAINER STRUCTURE (E.G., DOUBLE WALL, CATCH BASIN)220/560.1, Spaced, self-sustaining, inner and outer containers220/567.1, Underground220/567.2, For petroleum or a petroleum product (e.g., oil, gasoline)220/917, CORROSION RESISTANT CONTAINER405/52, FLUID CONTROL, TREATMENT, OR CONTAINMENT405/53Fluid storage in earthen cavity

Examiners

Primary: Taylor, Dennis L.
Assistant: McBee, J. Russell

Attorney, Agent or Firm

Oblon, Spivak, McClelland, Maier & Neustadt

International Class

B65G 005/00

Abstract

A system for the storage and dispensing of liquid product from an underground installation comprises a storage tank which bears on its top a containment chamber enclosing all fittings for apparatus which gasoline or other stored product will pass through under pressure. Attached to at least one fitting each are a fill means for introducing liquid to the storage tank, and pumping means for pumping fluid therefrom, both of which are entirely enclosed in secondary containment, the storage tank itself and piping also being enclosed in secondary containment, such that the system is pressure tight, and recovers all leaked fluid in a state in which the fluid can be reused.