US 11,913,592 B2
Thermally insulating pipes
Michael J. Parrella, Weston, CT (US); Bart A. Siegel, Greenback, TN (US); and Nevil R. Ede, Westport, CT (US)
Assigned to EXOTEX, INC., Houston, TX (US)
Appl. No. 15/761,514
Filed by EXOTEX, INC., Westport, CT (US)
PCT Filed Sep. 21, 2016, PCT No. PCT/US2016/052822
§ 371(c)(1), (2) Date Mar. 20, 2018,
PCT Pub. No. WO2017/053388, PCT Pub. Date Mar. 30, 2017.
Claims priority of provisional application 62/221,438, filed on Sep. 21, 2015.
Prior Publication US 2018/0259115 A1, Sep. 13, 2018
Int. Cl. F16L 59/14 (2006.01); F16L 59/147 (2006.01); F16L 9/14 (2006.01); B29D 23/00 (2006.01); F16L 59/02 (2006.01); B29C 63/06 (2006.01)
CPC F16L 59/147 (2013.01) [B29D 23/001 (2013.01); F16L 9/14 (2013.01); F16L 59/028 (2013.01); B29C 63/06 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for creating a thermally insulating pipe about a mandrel, comprising:
forming a first pipe layer as an innermost layer of the thermally insulating pipe and defining an inner pipe chamber therein defining an inner diameter of the thermally insulating pipe configured to allow transport of a substance, the first pipe layer formed from a fiber thread coated with an epoxy resin;
forming a first insulation layer around the first pipe layer configured to thermally insulate the inner pipe chamber;
forming a second pipe layer around the first insulation layer, wherein forming the second pipe layer comprises spinning, weaving, braiding or knitting a fiber thread of the second pipe layer around the first insulation layer at an offset angle from the first pipe layer that is greater than 0° and up to 90° ;
forming a second insulation layer around the second pipe layer, wherein forming the second insulation layer comprises wrapping an insulating material forming the second insulation layer around the second pipe layer;
forming an outer pipe layer defining an outer diameter of the thermally insulating pipe; and removing the mandrel.