System and method for producing spray foam insulated pipe with channels, tubes or conduits
AssigneePerma-Pipe, Inc.
InventorsJohn Carusiello, Sandeep Adka
Life of this patent
Estimating the term…
Abstract
A length of a main pipe is provided. The main pipe has an internal surface and an external surface. A plurality of channels, tubes or conduits is attached to the external surface of the main pipe and spaced about a circumference thereof. A spray foam insulation is applied to the external surface of the main pipe. Prior to curing the spray foam insulation, a compressive force is applied against an exposed outer surface of the spray foam insulation to prevent a bulge from forming over the channels, tubes or conduits so that the outer surface of the insulation has a uniform radius.
Claims21
A method of insulating a pipe system comprising the steps of:
- providing a length of a main pipe having an internal surface and an external surface;
- providing a plurality of channels, tubes or conduits attached to the external surface of the main pipe and spaced about a circumference thereof;
- applying a spray foam insulation to the external surface of the main pipe;
- and
- prior to a step of curing the spray foam insulation, applying a compressive force against an exposed outer surface of the spray foam insulation to prevent a bulge from forming over the channels, tubes or conduits so that the outer surface of the insulation has a uniform radius;
- and
- wrapping a ribbon-shaped member under tension about the spray foam insulation, the plurality of channels, tubes or conduits and the main pipe in successive overlapping passes wherein the compressive force is supplied by the ribbon-shaped member.
A method of insulating a pipe system comprising the steps of:
- providing a length of a main pipe having an internal surface and an external surface;
- providing a plurality of channels, tubes or conduits attached to the external surface of the main pipe and spaced about a circumference thereof;
- applying a spray foam insulation to the external surface of the main pipe;
- prior to a step of curing the spray foam insulation, applying a compressive force against an exposed outer surface of the spray foam insulation to prevent a bulge from forming over the channels, tubes or conduits so that the outer surface of the insulation has a uniform radius;
- wrapping a ribbon-shaped member under tension about the spray foam insulation, the plurality of channels, tubes or conduits and the main pipe in successive overlapping passes wherein the compressive force is supplied by the ribbon-shaped member;
- and
- removing the ribbon-shaped member from the main pipe.
Dependencies are inferred from the claim text.