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6868806 |
Vent damper apparatus
A vent damper apparatus provided for limiting flow of ambient air in a flue of a water heater. The apparatus generally includes a base structured to be connected to a water heater, and a damper...
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6260490 |
Burner isolation valve for pulverized fuel systems
A burner isolation valve or gate for use in the coal-delivery pipes of coal-fired power plants. Safety regulations often require that two valves be placed in the coal delivery line between a...
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5967139 |
Gas burning fireplace unit with damper
A gas fireplace unit has a combustion chamber in which a gas burner is provided as a heat source, and the gas fireplace unit has a heat exchanger on an upper wall of the combustion chamber. A first...
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5732692 |
Vent damper
An integral vent damper/hood apparatus for regulating draft in a flue of a hot water heater includes a damper support having a hemispherical dome, a congruent cylindrical portion with a plurality...
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5239947 |
Vent damper for gas water heater
A vent damper for limiting the flow of ambient air in a hot water heater including a main burner, a pilot light burner and a central core for evacuation of exhaust gases from the main burner and...
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5141152 |
Flue gas closure system
A flue gas closure system for a furnace which includes a burner and a heat exchanger through which flue gas flows. The system includes a closure member which in an open position permits the flow of...
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4905662 |
Guillotine dampers with blade sealing means accommodative of thermal expansion forces
A guillotine damper has the framework surrounding a flow path provided with side and bottom guide sections. The blade has U-shaped channel sections extending along the top, bottom and sides thereof...
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4803931 |
Flue restrictor
A flue restrictor to control air flow in a combustion apparatus having an exhaust system that includes a flue. The restrictor has a housing to be attached in the flue. There is a first valve member...
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4749168 |
Damper plate sealing mechanism
In a sealing mechanism for a damper plate for a duct, seal members are made in the form of multi-convoluted sheet metal bellows, which engage each side of the damper plate around the periphery of...
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4730597 |
Biomass stove
A biomass stove has an outer chamber formed by a continuous side wall which is connected to a bottom wall. An air inlet is formed in the bottom wall for allowing introduction of air into the...
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4724863 |
Flue gas seal
A damper mechanism of the slide gate type includes two curved seal segments positioned in back-to-back abutting relation to function as the primary flue seal. A seal door when closed extends...
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4708123 |
Wood burning stove
The present invention provides a wood burning stove having an internal damper plate located between first and second combustion chambers within the stove. The damper plate is movable between a...
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4694820 |
Stove with catalytic converter
A solid fuel burning stove having a catalytic converter apparatus located above the stove combustion site. The apparatus includes a horizontal partition having a first opening in direct...
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4669448 |
Inner door for water heater
The present invention provides an inner door for a water heater that is easily slidably mounted on the inside of a heating chamber, without hinges, and that will not fall off and is difficult to...
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4666270 |
Closure for controlling the flow of a hot fluid
An apparatus is disclosed for controlling the flow of a hot fluid. The apparatus includes a closure member for sliding between a closed position and an open position. The closure member has a hot...
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4655241 |
Apparatus for sealing dampers
An apparatus for sealing a flow control apparatus, such as a guillotine damper, is disclosed. The apparatus of the invention is particularly intended for dampers or other flow control devices...
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4624239 |
Barbecue grill damper-ash rake
A combination damper and ash rake for a barbecue grill comprising an integral, flat disc having damper openings, rake projections struck upwardly from the disc and a pair of ears struck downwardly...
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4607612 |
Fireplace furnace
A furnace insert (10) for an enclosed fireplace is disclosed. Furnace (10) includes an outer housing (11) and an inner housing (50) which define a firebox (11A). A plurality of tubular steel ducts...
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4493311 |
Guillotine damper
A guillotine damper for use in exhaust or like duct systems which must be entered by men for servicing has its frame provided with guides extending about the flow path from one end of the opening...
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4491144 |
Flexible seals for sliding blade dampers
A sliding blade damper is provided with an improved seal arrangement around the blade withdrawal aperture. Two pairs of flexible sealing strips are used, mounted on either side of the aperture and...
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4474205 |
Sliding blade apparatus for closing conduits
A conduit closure apparatus comprising a main frame adapted for connection to a conduit in a position generally in registry with the conduit, a movable blade slidably mounted in the frame, means...
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4466421 |
Afterburner for a wood stove
An afterburner for a wood stove for use as a retrofit assembly comprises a rectangular housing having openings in the upper and lower surfaces provided with cylindrical collars for cooperation with...
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4446847 |
Fireplace outside air inlet
A draft inlet or control for admitting outside air to a fireplace comprises a conduit sized to be set in and through the brickwork of a fireplace, preferably in the rear wall. The end facing into...
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4440145 |
Wet-based, wood-burning boiler
Disclosed is a wet-based, wood-burning boiler that has a combustion chamber that heats water in a cylindrical main boiler chamber and in a communicating rear boiler chamber. A flue directly...
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4436081 |
Damper assembly for barbecue grill
A barbecue grill is provided with a sliding damper for controlling the flow of combustion air into the grill. The damper is slidably mounted on the upper surface of a plate having an opening, and...
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4430986 |
Fuel burning stove with handle operated damper and baffle means
In a fuel burning stove having a heating chamber positioned above a firebox and covering a rear discharge opening as well as a major portion of the firebox upper wall, a vertical exhaust path is...
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4418680 |
Fireplace damper and air flow control
A damper and air flow control for use with fireplaces or stoves having a plurality of heat tubes extending through the exhaust passage for smoke and other products of combustion includes a...
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4409956 |
Thermostat for stoves
A thermostat for a stove is disclosed. The thermal control unit is contained in a housing which has an aperture formed therein and includes a thermal control unit for detecting changes in the...
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4407264 |
Adjustable fresh air damper for combustion
An adjustable fresh air damper for combustion air is provided. Said invention consists of a front plate having a central aperture, an air intake plate having a plurality of apertures and means for...
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4373507 |
Stove construction
A wood burning stove having a catalytic converter for achieving greatly increased combustion efficiency, said stove having damper means for insuring that all combustion gases from the primary...
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4355624 |
Fuel burning heater
A forced air, fuel burning heater is provided which includes a relatively large damper plate slideably mounted immediately below the top wall of the heater, to thereby insulate the top wall from...
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4347831 |
Fuel burning stove
A fuel burning stove or furnace wherein combustion of fuel is more complete resulting in a greater amount of heat generation and a cleaner combustion residue. The stove includes a stove housing...
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4279237 |
Combination stove and fireplace
The specification describes a stove which is convertible to a fireplace. The stove has a swingable mounted front door which closes the combustion chamber. The door has a primary and secondary...
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4235256 |
Damper assembly for gas duct
A damper assembly for closure of a duct for conveying hot corrosive gases is disclosed. The damper assembly comprises a rectangular frame having vertical side members substantially coextensive with...
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4201186 |
Solid-fuel burner
A stove or furnace in which the products of combustion are recirculated inside the combustion chamber by means of a V-shaped partition or baffle, the apex of which extends downward directly above...
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4184474 |
Fireplace draft control damper
A draft control is described for selectively admitting exterior fresh air to assist combustion within the interior of a fireplace. The draft control is comprised of two interconnected and...
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4181116 |
Stove
A wood-burning stove has a vertically corrugated surrounding wall, the vertical corrugations having an outer side in direct contact with the atmosphere and an inner side directly contactable by the...
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4176673 |
Purged sliding gate valve
A sliding gate valve comprising a housing; a sliding gate; an enclosed void space between the gate side edges and the wall of the housing when the gate is in the closed position; and a purge line...
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4164211 |
Damper assembly
A damper assembly for use in gas-conducting conduits including a damper blade with a cavity therein for receiving a fluid and a plurality of outlet ports in flow communication with the cavity to...
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4093245 |
Mechanical sealing means
Sealing means for sealing between a moving member and a fixed frame with which the moving member cooperates, said sealing means comprising rigid, elongated, channel means (on either the frame or...
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4043534 |
Sealing means for sliding gate valve
Sealing means for a sliding gate valve with a frame having a bottom frame member, a top frame member with an aperture therein generally transverse to the direction of fluid flow through the valve,...
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3996920 |
Fireplace damper construction
A damper construction is provided by a sheet metal plate having fixed guide members extending therefrom for sliding movement upon a pair of parallel guide tracks on each side of the plate. The...
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3996864 |
Furnace damper and support
A damper for controlling the passage of combustion gases through a conduit in a furnace. The damper is a mass of formed refractory material shiftable through an opening in the side of the conduit...
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3716004 |
REFRACTORY DAMPER FOR HIGH TEMPERATURE OR CORROSIVE GASES
A recirculating dryer system is disclosed wherein combustion gases from a waste wood-fired furnace are circulated through a wood veneer dryer or lumber dry kiln and returned to a mixing chamber for...
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3598067 |
DAMPER FOR HIGH TEMPERATURE OR CORROSIVE GASES
A damper of refractory material has spaced openings to register with similar openings in a furnace wall when the damper is in open position. A short horizontal movement of the damper shifts the...
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3322417 |
Damper system
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3228389 |
Dampers
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3084405 |
Damper assembly
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2955342 |
Fabric treating furnace having common hot and cold air ducts and traveling dampers
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2811963 |
Automobile heater attachment for warming bottles
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