초록 ▼

Concentric conduits are supplied for the purpose of minimizing heat transfer from within the inner conduit through the outer conduit. The air gap or annulus around the inner conduit is filled with a resin mixture which is mixed with vermiculite and mineral fiber to form a slurry. The slurry is pumpe

Concentric conduits are supplied for the purpose of minimizing heat transfer from within the inner conduit through the outer conduit. The air gap or annulus around the inner conduit is filled with a resin mixture which is mixed with vermiculite and mineral fiber to form a slurry. The slurry is pumped into an open end of the annulus to fill the annulus and enhance the heat insulation characteristics of the concentric conduits.

대표청구항 ▼

[ We claim:] [1.] A mixture forming liquid slurry for injecting into the annulus between generally concentric conduits to form a heat transfer barrier consisting essentially of, by weight:between about 50% and about 67% water;between about 31% and about 48% fibers; andbetween about 2% and about 5% i

[ We claim:] [1.] A mixture forming liquid slurry for injecting into the annulus between generally concentric conduits to form a heat transfer barrier consisting essentially of, by weight:between about 50% and about 67% water;between about 31% and about 48% fibers; andbetween about 2% and about 5% inorganic binder.