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.

Date of Patent:
Jan. 20, 2015

Filed:

Sep. 03, 2013
Applicant:

University of Maine System Board of Trustees, Bangor, ME (US);

Inventors:

Habib J. Dagher, Veazie, ME (US);

Richard F. Nye, Old Town, ME (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04G 11/04 (2006.01); B29C 33/50 (2006.01); B29C 70/44 (2006.01); B29C 70/56 (2006.01); B29C 70/86 (2006.01); B29C 33/38 (2006.01); B29K 709/06 (2006.01);
U.S. Cl.
CPC ...
E04G 11/045 (2013.01); B29C 33/505 (2013.01); B29C 70/443 (2013.01); B29C 70/446 (2013.01); B29C 70/56 (2013.01); B29C 70/865 (2013.01); B29C 33/38 (2013.01); B29K 2709/06 (2013.01);
Abstract

An inflatable mold assembly for forming a hollow composite construction member that is suitable for use as a building material has a longitudinal axis. The mold assembly further has a flexible, substantially tubular bladder wall defining an elongated inflatable cavity. A reinforcing fabric is positioned concentrically around the flexible bladder wall. A flexible air-impervious outer layer is positioned concentrically around the fabric, with the bladder wall and the outer layer defining an elongated annular space, and with the fabric being positioned within the elongated annular space.


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