F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent
F - Mech Eng,Light,Heat,Weapons
24
H
F24H 1/18 (2006.01) B29C 44/18 (2006.01) B65D 90/06 (2006.01) F17C 3/04 (2006.01) F17C 3/12 (2006.01) F24H 1/20 (2006.01) F24H 9/00 (2006.01) F24H 9/02 (2006.01)
Patent
CA 2308882
A method of manufacturing a double walled vessel is herein disclosed. The method involves the steps of forming an outer vessel having at least one reassembly channel formed therearound and forming an inner vessel having at least one element fitting formed integral thereto. At least one control housing is secured to the outer surface of the inner shell in registration with the element fitting. Heating elements and other control apparatus are installed in the element fittings within the control boxes. The outer vessel is sectioned at the reassembly channel, thereby allowing the inner vessel to be inserted into the outer vessel. The outer vessel is reassembled to enclose the inner vessel therein and a curable foam material is injected into the space between the inner and outer vessels to maintain a constant spatial relationship therebetween and to ensure the structural integrity of the outer vessel. Finally, a portion of the wall of the outer vessel corresponding to an open face of the control housing is removed to permit access to the interior of the control housing through the wall of the outer vessel.
Gauer Gary W.
Iannelli Ronald
Jackson Barry Nield
Macrae & Co.
Water Heater Innovations Inc.
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