The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 16, 2000
Filed:
Mar. 15, 1999
Martin C Pettesch, Cranford, NJ (US);
Universal Valve Co., Inc., Elizabeth, NJ (US);
Abstract
A fuel storage tank with reduced vapor generation capability having a drop tube with a pressure activated valve in the wall of the drop tube to permit communication between the inside upper region of the tank and the inside of the drop tube. The valve is normally closed to prevent vapors in the tank from being sucked into and entering the drop tube. A buildup of vapor pressure in the upper drop tube region causes the valve to open and the air/vapor to flow from the upper drop tube region into the upper storage tank region. No special pipes, lines, floats or other apparatus are needed for this vapor reduction arrangement and method and any air or vapor originally entering the riser or initially in the drop tube that flows into the tank upper region is handled in the conventional manner as all other vapor originally in that region, i.e. it is recycled and recovered in the top of the tanker delivery truck.