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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.:

US 9376782 B1

PDFFull Text
Date of Patent:
Jun. 28, 2016

Filed:

Nov. 13, 2009

Repair and strengthening of piles and pipes with frp laminates

Applicant:

Mohammad R. Ehsani, Tucson, AZ (US);

Inventor:

Mohammad R. Ehsani, Tucson, AZ (US);

Assignee:

Other;

Attorney:

Arjomand Law Group, PLLC

Primary Examiner:

Michael N Orlando

Assistant Examiner:

Matthew Hoover

Int. Cl.
CPC ...
E04B 2/00 (2006.01); E04F 13/00 (2006.01); B31B 1/60 (2006.01); B29C 65/00 (2006.01); B32B 37/00 (2006.01); B29C 73/00 (2006.01); B32B 43/00 (2006.01); B29C 63/10 (2006.01); B65H 81/00 (2006.01); E04F 13/08 (2006.01); F16L 55/18 (2006.01); F16L 55/16 (2006.01); F16L 9/00 (2006.01); E02D 5/60 (2006.01); E02D 31/00 (2006.01); E02D 5/00 (2006.01); E02D 5/24 (2006.01); B29C 53/36 (2006.01); B29C 53/58 (2006.01); B29C 53/00 (2006.01); B29C 53/14 (2006.01); B29C 53/32 (2006.01); B29C 53/60 (2006.01); B29C 53/56 (2006.01); B29C 53/04 (2006.01); B29C 53/02 (2006.01); E02D 5/22 (2006.01); B29C 63/04 (2006.01); B29C 65/48 (2006.01); B29C 65/50 (2006.01); B29C 65/54 (2006.01); B29C 63/26 (2006.01); B29C 63/18 (2006.01); B29C 63/32 (2006.01); B29C 63/22 (2006.01); B29C 63/08 (2006.01); B29C 63/30 (2006.01); B29C 63/02 (2006.01); B29C 63/00 (2006.01);
U.S. Cl.
CPC ...
E02D 5/00 (2013.01); B29C 53/00 (2013.01); B29C 53/02 (2013.01); B29C 53/04 (2013.01); B29C 53/14 (2013.01); B29C 53/32 (2013.01); B29C 53/36 (2013.01); B29C 53/56 (2013.01); B29C 53/562 (2013.01); B29C 53/58 (2013.01); B29C 53/581 (2013.01); B29C 53/60 (2013.01); B29C 53/602 (2013.01); B29C 63/00 (2013.01); B29C 63/02 (2013.01); B29C 63/04 (2013.01); B29C 63/08 (2013.01); B29C 63/10 (2013.01); B29C 63/18 (2013.01); B29C 63/22 (2013.01); B29C 63/26 (2013.01); B29C 63/30 (2013.01); B29C 63/32 (2013.01); B29C 65/00 (2013.01); B29C 65/48 (2013.01); B29C 65/483 (2013.01); B29C 65/50 (2013.01); B29C 65/5057 (2013.01); B29C 65/54 (2013.01); E02D 5/22 (2013.01); E02D 5/24 (2013.01); E02D 5/60 (2013.01);
Abstract

The present invention is a method for strengthening a vertical column, such as piles under piers and docks and for columns in bridges and buildings. A coiled FRP laminate is provided and wrapped in a helical fashion around the column, with the laminate overlapping itself. An epoxy resin coating is applied between the overlapping portions. The epoxy resin will then cure to form a substantially water tight shell. A plurality of spacers may be fixed to the column and adapted to hold the laminate a set distance away from the column. A plurality of sealing means is provided to seal the space between the shell and the column. A filler material may be pressurized to fill the space, penetrate cracks in the column, and displace water. Also, a plurality of rigid strengthening rods may be added between the column and the shell to further strengthen the column.

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