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:
Aug. 19, 2014

Filed:

Nov. 30, 2010
Applicant:

Weigang Qi, Westerville, OH (US);

Inventor:

Weigang Qi, Westerville, OH (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 63/06 (2006.01); B65H 81/00 (2006.01); F24F 13/02 (2006.01); F16L 59/153 (2006.01); B29D 23/00 (2006.01); B29C 65/00 (2006.01); B29C 53/50 (2006.01); B29L 23/00 (2006.01);
U.S. Cl.
CPC ...
F16L 59/153 (2013.01); B29C 66/9674 (2013.01); B29C 66/91216 (2013.01); B29C 2793/009 (2013.01); B29C 53/50 (2013.01); B29C 66/91212 (2013.01); B29C 66/1122 (2013.01); F24F 13/0218 (2013.01); B29C 63/065 (2013.01); B29D 23/001 (2013.01); B29L 2023/225 (2013.01); B29C 66/4322 (2013.01); B29K 2995/0015 (2013.01); B29C 66/919 (2013.01); B29C 66/91221 (2013.01); B29C 66/865 (2013.01); F24F 2221/125 (2013.01);
Abstract

A method of manufacturing flexible insulated duct includes wrapping a substantially flexible tubular core with a layer of insulation. A substantially flexible outer layer is wrapped about the layer of insulation such that longitudinal edges of the outer layer circumferentially overlap to define a longitudinally extending seam. The overlapping longitudinal edges of longitudinally extending seam in the outer layer are bonded together, thereby forming the flexible insulated duct. The flexible insulated duct is then cut to a discrete length and installed at a job site.


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