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Document Title |
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6823861 |
Self contained pond heater
A wholly self-contained pond heater for use in preventing ice from forming on a pasture pond, comprising a heater assembly secured in a casing which is partially submersible in the pond. The heater...
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6644301 |
Ice melter
Ice melting apparatus having an elongated vertically disposed body member with a melting head at the lower end which is heated by a flame to melt the ice. The heat is concentrated near or within...
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6561182 |
Water heater, steam generator and gas burner therefor
A hot water boiler and/or hot steam generator as well as a gas burner and a water vessel for the hot water boiler and hot steam generator are disclosed. The water boiler or hot steam generator...
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6439224 |
Ice melter
Ice melting apparatus having an elongated vertically disposed body member with a melting head at the lower end which is heated by a flame to melt the ice. The heat is concentrated near or within...
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6296050 |
Heat exchanger
An improved heat exchanger includes a central chamber, preferably in the form of a tube, having a proximal end and a distal end. A return manifold is connected to the distal end of the central...
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6085738 |
Multi-fuel burner and heat exchanger
A burner has a burner tube and a nozzle holder mounted in one end of the burner tube. An igniter is positioned within the nozzle holder and acts to ignite any of the multi-liquid fuels which may be...
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5967137 |
High efficiency direct-contact high temperature water heater
A gas-fired direct-contact water heater system 10 is described. It consists of a first housing 11, 50, 80 having a packing 16, 51, 81 of heat exchange elements 17 and on which water is sprayed. A...
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5105799 |
Portable fluid heater
A portable fluid heating unit which may be used for supplying warm water to divers which includes a three stage heat exchange system wherein a fluid source, such as sea water, is initially heated...
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4658803 |
Gas-fired water heaters
A compact, gas-fired water heater in which a reservoir of bulk water is indirectly heated by a gas burner-fired immersion tube and directly heated by mutual contact between the hot flue gases from...
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4530347 |
Gas-fired water heaters
A compact gas-fired water heater in which a reservoir of bulk water is bath heated, indirectly by a gas burner-fired immersion tube and directly heated by mutual contact between the hot flue gases...
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4505254 |
Water heater for divers and for other uses
An unpressurized heater for water or another liquid includes a shell which may be substantially filled with liquid to be heated and within which is immersed a fire box which delivers hot combustion...
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4493309 |
Fuel fired heating element
The present invention relates to a fuel-fired heating element of the tubular kind particularly though not exclusively for use as an immersed heating tube in molten metals, salts or fluidized beds...
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4438757 |
Device for reopening an ice-bound water source
A device for reopening an ice-bound water source is disclosed. Once a hole is provided in a frozen water source, the tubular member is inserted into the hole where it becomes frozen in place. The...
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4425902 |
Submersible device for heating liquids
A gas burner associated with a combustion chamber constitutes a fluid-tight removable heating unit immersible in a liquid to be heated. The unit has a caisson including a chamber for premixing and...
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4172445 |
Storage tank heater
A tank heater for a storage tank is provided with a fuel fired burner assembly, a heat transfer tube extending from the burner assembly a substantial longitudinal extent within the storage tank for...
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4114304 |
Device for preventing ice fishing holes from freezing closed
A tapered tubular casing of sheet metal has an open upper end and a closed bottom end. Sheet metal connectors having upwardly and downwardly directed tangs are spot welded to diametrically opposite...
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3994281 |
Heat generator of the combustion product condensation type and process for heating a heat-carrying fluid
A heat generator of the type condensing the combustion products of a liquid or gaseous hydrogen fuel suitable for the heating of a heat-bearing fluid, including a tank containing at the top a zone...
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3913560 |
Submerged combustion installation
A submerged burner for the combustion of large daily volumes of hydrocarbon gases. The device comprises a combustible mixture supply system, including an inlet for gas from the low-pressure...
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3807385 |
FLOATING HEATER TO MAINTAIN HOLE THROUGH ICE OPEN
A hollow upstanding tubular member closed at its lower end and weighted at its bottom so as to float upright in a body of water with but a small portion of the upper end of the housing projecting...
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3749082 |
EXPANSION SYSTEM FOR ASPHALT PLANT OIL HEATER
An oil expansion system for an asphalt plant closed loop oil heater wherein a body of inert gas is maintained in contact with the surface of the oil in the oil heater to inhibit the oxidation of...
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3724447 |
IMMERSION HEATER
An improved immersion heater assembly for heating baths containing molten aluminum or magnesium and salt flux features an outer refractory jacket and an inner metal liner. The improved assembly...
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3681566 |
HEATING SYSTEM FOR ASPHALT EQUIPMENT
A controlled heating system, in which heat-transfer oil, which is circulated through jacketed heating means installed in an asphalt tank, effects the production of a high heat input when oil is...
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3635457 |
FURNACES FOR MOLTEN METAL
A furnace for molten metal comprises a refractory bath to hold metal surrounding a heater which consists of a cup-shaped refractory vessel which stands in the bath and receives a high-velocity...
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3622511 |
SEWAGE TREATMENT SYSTEM
A compact mechanical system for treating sewage in which the raw sewage is macerated and supplied to an evaporator that employs a submersible burner wherein some of the sewage is burned and the...
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3534726 |
GAS-FIRED HEATER
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3407283 |
Ice fishing hole heating device
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3372693 |
Heating systems and railway tank cars incorporating such heating systems
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3319709 |
Fluid heater for thawing frozen pipe lines
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3315659 |
Load heaters
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3299878 |
Air and water heater
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3289439 |
Dye beck having flame fired heat exchanger
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3266485 |
Recirculating immersion heater
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3251357 |
Water treatment and apparatus
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3228390 |
Snow disposal unit
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3223081 |
Bottom-hole catalytic heater using heat transfer liquid
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3204630 |
Ice fishing device
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3174820 |
Method for utilizing submerged combustion
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3128758 |
Ice hole maker
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3103936 |
Gas wash solution heater for conveyorized washing machines
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3086512 |
Asphalt and compound melting kettle
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3044551 |
Heater
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3004603 |
Heater
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2990829 |
Ice fishing heater
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2941525 |
Heater
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2883784 |
Ice fishing equipment
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2839332 |
Means for applying a liquid material to a surface
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2723659 |
Submersible burner
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2720201 |
Immersion heater burner housing with flame arrester
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2706531 |
Gas and multiple liquid separator apparatus
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2607661 |
Apparatus for concentrating acids
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