Cabot Corporation

Andries J Du Plessis

Aaron Henry Johnson

Nirmalya Maity

Thomas Michael Miller

Jason J Koravos

Matthew B Greenfield

Georg Rudolf Gertner

James R Satterwhite

Daniel P Olsen

John L Dinon

Hobart C Kalkstein

Ravijit Paintal

Insulated pipe systems or assemblies include a particulate, composite or monolithic insulating aerogel material. Techniques for installing or manufacturing such systems or assemblies are described, as are components useful in the installation or manufacture processes.

Manufacturing and installation of insulated pipes or elements thereof

A method for fabricating an insulated system such as, for instance, an insulated window unit, includes introducing an insulating material between adjacent walls and stabilizing the system. Particulate insulators preferably are introduced in the system by filling an expanded internal volume. Stabilization of the system can be carried out by reducing the pressure within the internal volume. A stabilized insulated system is fabricated by introducing an insulating material between adjacent walls and stabilizing the system. Also disclosed are processes and equipment for filling insulated systems, such as fenestration units, and insulated systems comprising mixed insulating materials.

Filling fenestration units

The invention provides an insulated pipe-in-pipe assembly comprising (a) at least one inner pipe, (b) an outer pipe disposed around the at least one inner pipe so as to create an annular space between the outer and inner pipes, (c) porous, resilient, compressible material disposed in the annular space, and (d) a remnant of a container that previously was positioned in the annular space and previously held the compressible material in a volume less than the volume of the compressible material in the annular space. The invention also provides a method for making such an insulated pipe-in-pipe assembly.

Insulated pipe and method for preparing the same

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Winchester, MA, United States of America

Andries J Du Plessis