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, 2017
Filed:
Jan. 26, 2015
Applicant:
Harr Technologies, Inc., Anchorage, AK (US);
Inventor:
Robert E. Harr, Kasilof, AK (US);
Assignee:
Harr Technologies, Inc., Anchorage, AK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 1/036 (2006.01); F16L 55/18 (2006.01); E21B 7/20 (2006.01); E21B 7/30 (2006.01); E21B 17/03 (2006.01); F16L 55/168 (2006.01); F16L 1/028 (2006.01); F16L 9/22 (2006.01);
U.S. Cl.
CPC ...
F16L 1/036 (2013.01); E21B 7/205 (2013.01); E21B 7/30 (2013.01); E21B 17/03 (2013.01); F16L 1/028 (2013.01); F16L 9/22 (2013.01); F16L 55/168 (2013.01); F16L 55/18 (2013.01);
Abstract
Replacement drainage structures and methods for replacing drainage structures are disclosed. An example method includes driving a plurality of sections of a replacement drainage structure around a buried drainage structure to be replaced. At least a portion of the drainage structure to be replaced is positioned within the interior of a section of the replacement drainage structure. Portions of the drainage structure to be replaced are removed.