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:
Sep. 09, 2003
Filed:
Dec. 07, 2001
James E. Osgood, Camarillo, CA (US);
William R. Major, Summerland, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A well pipe extraction apparatus for removing a groundwater monitoring well consisting of PVC pipe from the ground. The well pipe extraction apparatus includes a wire rope, a soft eye formed at an upper end of the wire rope and knurled brass rod attached to the opposite end of the wire rope. The knurled brass rod is lowered to the bottom end of the well casing. An operator pours sand particles down the well casing. The sand particles wedge in-between groves within the brass rod and the interior surface of the well casing locking brass rod to the well casing which allows the operator to extract the PVC pipe from the ground.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile