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:
Nov. 14, 2000
Filed:
Nov. 07, 1997
Applicant:
Inventors:
John J Mastroianni, Houston, TX (US);
Darren M DeFabo, Houston, TX (US);
Assignee:
The IT Group, Inc., Monroeville, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04F / ; F04F / ; E21B / ;
U.S. Cl.
CPC ...
417 54 ; 417131 ; 417134 ; 417 53 ; 166370 ; 166372 ;
Abstract
A well and method for using the well for removing lighter than water pollutants (e.g. hydrocarbons and other organics) from a water table. The well includes a pneumatic pump having an air exhaust port to which a vacuum hose is attached for applying a vacuum to the pump chamber to enable fluids to be drawn into the pump chamber without regard to the hydrostatic head and at a rate sufficient to provide a drawdown of the water table to enable capture of organic compounds present as a floating layer on the water table.