Liquid heaters and vaporizers – Stand boiler – And condition responsive feature
Reexamination Certificate
2011-01-04
2011-01-04
Wilson, Gregory A (Department: 3749)
Liquid heaters and vaporizers
Stand boiler
And condition responsive feature
C122S429000
Reexamination Certificate
active
07861678
ABSTRACT:
A high-efficiency water heater dip tube includes a wall having orifices formed therein for conducting an outflow of relatively colder water from the dip tube into relatively hotter water in an interior of a water heater. The orifices have a size, number, shape, pattern and location for at least minimizing turbulence, for reducing admixing near the tube, for diluting, equalizing and blending efflux flow and for reducing outflow force and speed. A method for reducing turbulence in water heaters includes providing a dip tube including a wall having orifices formed therein, conducting an outflow of relatively colder water from the dip tube into relatively hotter water in an interior of the water heater, and selecting a size, number, shape, pattern and location of the orifices for at least minimizing turbulence, reducing admixing near the tube, diluting, equalizing and blending efflux flow and reducing outflow force and speed.
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Greenberg Laurence A.
Locher Ralph E.
Stemer Werner H.
Wilson Gregory A
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