Pour-in-place water heater foam insulation systems

Details Pour-in-place water heater foam insulation systems Pour-in-place water heater foam insulation systems

1999-03-12

2000-11-21

Wilson, Pamela

Liquid heaters and vaporizers

Stand boiler

And casing feature for stand boiler or external water tank...

2205921, 22059225, F02B 7500

Patent

active

061487740

ABSTRACT:
The present invention relates to water heater (12) construction whereby thermal insulation material is foamed in the clearance space between the tank and shell of the water heater, wherein the foamed insulation material has lesser uniformity in cell structure and density and a lesser or smaller density in the upper portion of the volume of foam which is disposed over the top of the inner water tank than in the lower portion of the volume of foam insulation material disposed around the side of the inner water tank. The present invention provides gas and electric water heaters with improved energy efficiency, utilizing a liquid, foam-in-place composite foam insulation system. The present invention further provides an improved method for insulating the annular clearance space between an inner water tank and an outer enclosure of a gas or electric water heater.

REFERENCES:
patent: 4477399 (1984-10-01), Tilton
patent: 4527543 (1985-07-01), Denton
patent: 4736509 (1988-04-01), Nelson
patent: 4744488 (1988-05-01), Nelson
patent: 4749532 (1988-06-01), Pfeffer
patent: 4844049 (1989-07-01), Nelson
patent: 4860728 (1989-08-01), Nelson
patent: 4878459 (1989-11-01), Nelson
patent: 4878482 (1989-11-01), Pfeffer
patent: 4890762 (1990-01-01), Pfeffer
patent: 4901676 (1990-02-01), Nelson
patent: 4907569 (1990-03-01), Lemense
patent: 4979637 (1990-12-01), Nelson
patent: 4998970 (1991-03-01), Nelson
patent: 5052347 (1991-10-01), Nelson
patent: 5251282 (1993-10-01), Hanning et al.
patent: 5263469 (1993-11-01), Hickman
patent: 5419449 (1995-05-01), Hanning et al.
patent: 5761379 (1998-06-01), Lannes

Affiliated with

Also associated with

Rating

Pour-in-place water heater foam insulation systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pour-in-place water heater foam insulation systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pour-in-place water heater foam insulation systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1248206