Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1997-11-25
1999-02-09
Kuhns, Allan R.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
264 465, 264 466, 264 469, 264276, 264314, B29C 4406, B29C 4418
Patent
active
058689800
ABSTRACT:
A method for masking components of a hot water tank from insulation wherein a carrier sheet containing a pair of inflatable rings is insertable into the space between the inner tank and outer shell of the hot water tank. The inflatable rings surround electrical components on the inner tank to prevent insulation injected into the space from covering the electrical components. Inflatable bags are insertable into threaded bores on fittings connected to the inner tank to prevent the insulation from covering the threaded bores, and to prevent insulation from escaping to the outside of the outer shell.
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