Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4653998 | Furnace system A furnace system connected to a burner including a furnace for burning a fuel and air ejected from the burner into the furnace to produce a flame therein, and a combustion condition determining device for determining the conditions of combustion of the fu... | 03/31/1987 |
| 4630552 | Device at combustion plants for automatical feeding of fuels within the fireplace of the plant A method and device in combustion plants for solid fuels with a movable grate means for feeding the fuel through the fireplace of the combustion plant, for the control of the fuel feed through the fireplace of the plant. To control that the fed fuel is co... | 12/23/1986 |
| 4628829 | Solid fuel combustion assembly There is disclosed an improved solid fuel combustion assembly including a combustion chamber having a high heat capacity liner and provided with primary and secondary combustion supporting fluid conduits to thereby achieve combustion temperatures in the c... | 12/16/1986 |
| 4628830 | Microwave detection of fuel flow A microwave transmitter irradiates each outlet pipe flow path of a coal pulverizer with a beam of electromagnetic energy at a microwave frequency. The microwave energy absorbed in each outlet pipe flow path is monitored and is proportional to the pulveriz... | 12/16/1986 |
| 4620491 | Method and apparatus for supervising combustion state This invention relates to the supervision of a combustion state of a combustion furnace. A flame formed concentrically with the direction of a fuel jetted from a burner being the center is measured from its side, and two oxidizing flame zones as high lumi... | 11/04/1986 |
| 4615282 | Hot surface ignition system control module with accelerated igniter warm-up test program A control module in a hot surface ignition system includes a microcomputer programmed to provide a pre-selected igniter warm-up time period for enabling the igniter to heat up to gas ignition temperature during normal system operation, and is further prog... | 10/07/1986 |
| 4612865 | Apparatus for the combustion of solid fuels A cyclone furnace for the combustion of solid fuels, comprising a generally cylindrical combustion chamber (21) is closed at one end (18, 23) and is provided with at least one inlet opening for fuel and air and has an outlet at the end opposite the closed... | 09/23/1986 |
| 4602572 | Metering feeder A metering feeder for delivering solid fuels, such as municipal or industrial refuse, for combustion includes a pair of generally vertically arranged hoppers. An upper hopper containing relatively compacted or intertangled fuel discharges metered amounts ... | 07/29/1986 |
| 4598670 | Solid fuel feed system for a boiler A solid fuel feed system for a boiler in which a hopper is provided for storing the fuel and a discharge conduit is provided for discharging the fuel to the boiler. A first conveyor belt system conveys the fuel from an inlet to the hopper and a second con... | 07/08/1986 |
| 4552078 | Process and installation for recycling solid unburnt materials in a fluidized bed Process and apparatus for supplying combustible material to a fluidized bed in a vessel connected to a separating device for the solid particles entrained with the smoke and containing a certain proportion of unburnt matter, the particles recovered being ... | 11/12/1985 |
| 4539915 | Automatic feed device for solid fuel boiler, specifically for logs of wood This invention concerns an automatic feed device for a solid-fuel boiler, specifically for logs of wood. The subject of the invention is an automatic feed device for a solid-fuel boiler, specifically for logs of wood, characterized by the fact that it com... | 09/10/1985 |
| 4519323 | Velocity controlling apparatus and method to be used with a stoker type burning apparatus The present invention relates to a velocity controlling apparatus and method to be used with a stoker type burning apparatus on a refuse incinerator which moves refuse successively by reciprocating motion of movable fire grates. The movable fire grates, w... | 05/28/1985 |
| 4518123 | Method for controlling the pulverization and dryness of flammable materials passing through a pulverizer, and method of controlling the pulverizing rate of the pulverizer In a method of controlling the pulverization and dryness of a flammable material such as coal, the system is provided with both a push blower upstream from the pulverizer and a pull blower downstream from the pulverizer. The system is controlled so as to ... | 05/21/1985 |
| 4503782 | Wood stove grate kit with low wood signal The specification discloses a grate replacement kit for a solid fuel burning firebox. The kit includes an extendable grate, adaptable to a variety of different size fireboxes, and a scale to be mounted on the outside of the firebox. Further included is a ... | 03/12/1985 |
| 4499857 | Fluidized bed fuel burning Controlling a fluidized bed coal combustor by sensing certain variables and thereby controlling other variables.... | 02/19/1985 |
| 4493270 | Heating unit An improved heating unit comprises a combustion chamber which includes a fuel-supporting perforated burning platform located a distance from the bottom of the combustion chamber. A perforated air plenum is disposed within the combustion chamber a short di... | 01/15/1985 |
| 4489664 | Closed loop fuel feed system for multiple direct fired burners A closed loop fuel feeding system for multiple direct fired burners in which a conduit system associated with a fuel grinding mill forms a closed loop for conducting the flow of fuel and air back to the mill in excess of the fuel and air not released from... | 12/25/1984 |
| 4489679 | Control system for economic operation of a steam generator A once-through steam generator has both radiant and convection sections. The flue gases discharged from the convection section are passed through a wet scrubber to remove both sulfur oxides (SOx) and particulate matter. The feedwater to the con... | 12/25/1984 |
| 4425854 | Micronized coal burner facility It is an object of the invention to provide for a coal in oil mixture a combustor or burner system in which the ash resulting from burning the mixture is of submicron particle size. The burner system comprises, as shown in FIGS. 1 and 2, a burner section ... | 01/17/1984 |
| 4421036 | Plant for the combustion of impure solid fuel In a fluidized bed plant for the combustion of impure solid fuel in the presence of an absorbent material which absorbs and neutralizes the impurities, in particular sulfur, the supply of absorbent material to the fluidized bed is controlled in dependence... | 12/20/1983 |
| 4389949 | Method of and arrangement for supplying a fuel to a plurality of burners of a furnace Supplying a fuel to a plurality of burners of a heating installation is performed by individually dosing a fuel by dosing elements to a plurality of burners with an excessive available amount of the fuel, withdrawing an unused amount of the fuel from the ... | 06/28/1983 |
| 4385567 | Solid fuel conversion system A solid fuel conversion system feeds solid fuel to a burning area at a controlled and metered rate. In the burning area, the solid fuel is dried before it reaches a burning bed of coals. Once it reaches the bed of coals, it is advanced at a controlled rat... | 05/31/1983 |
| 4377115 | Furnace for burning particulate wood waste material A furnace for burning dry or wet wood waste products such as hogged bark and the like is provided with a grating therein comprised of aligned rows of bricks resting on supporting cross beams, with at least some of the rows of bricks maintained a uniform d... | 03/22/1983 |
| 4365563 | Safety device for a burner of a coal gasification plant A safety device for protecting a burner of a coal gasification plant against solid blockage. Solid blockage may occur in a burner of a coal gasification plant fed with a mixture of coal particles and fluid. In order to protect the burner against solid blo... | 12/28/1982 |
| 4345527 | Solid fuel particle and air fuel control device A solid fuel particle and air control device for use with combustion systems for a gas turbine engine and the like is disclosed. The device has a first housing with an inlet passage for receiving solid fuel particles. The first housing is mounted on a sec... | 08/24/1982 |
| 4339998 | Fuel level indicator The present invention relates to a fuel level indicator for a heating unit, such as a stove or furnace. In particular, the invention relates to an indicator for a wood burning heating unit with a grate which is slightly elevated when there is insufficient... | 07/20/1982 |
| 4332207 | Method of improving load response on coal-fired boilers A method for rapidly changing the amount of pulverized coal supplied to a coal-fired furnace (10) equipped with a coal pulverizer (20) from a first steady-state level to a second steady-state level in response to a change in operating load demand. The amo... | 06/01/1982 |
| 4331084 | Fuel feed technique for auger combustor A feeding system for a starved-air combustor which enables the batch feeding of preselected weights of fuel into a combustion chamber of the starved-air combustor. The feeding system also blocks the entry of ambient air into the combustion chamber during ... | 05/25/1982 |
| 4321877 | Gasification furnace A continuous gasification furnace and method of operation. The charge is fed into the furnace chamber between two rolls at least one of which is driven. The furnace chamber can be sealed from the ambient atmosphere. The bed of the furnace contains three z... | 03/30/1982 |
| 4315468 | Control system for a single auger starved-air combustor A control system for a starved-air combustor wherein a combustion chamber is divided into a plurality of combustion chamber zones with separate overfire and underfire airflows being individually provided for each zone. Fuel is fed to the combustor in sele... | 02/16/1982 |
| 4312279 | Compactor-feeder for solid waste incinerator Converging upper and lower conveyors transport loose waste from a receiving hopper toward an incinerator combustion chamber entrance at an adjustably predetermined normal rate, cooperating to compact the waste into a continuous plug and to force the plug ... | 01/26/1982 |
| 4312278 | Chip wood furnace and furnace retrofitting system A furnace system suitable for independent use and for retrofitting conventional central heating oil furnaces to permit controlled continuous and efficient combustion of fragmented wood type fuels. Wood chips or other fuel fragments are trickle fed into a ... | 01/26/1982 |
| 4311102 | Burning system An improved burning system for automatically controllably charging a wood-waste burning steam boiler utilizes a fuel bin unloader having a gravity fed screw metering device for feeding fuel into the system in response to steam demand and pollution output ... | 01/19/1982 |
| 4299177 | Stoker structure A screw-conveyor or auger feed and associated leveling system for underfeed stoker troughs receiving particulate, cominuted, or chunk material, such as "green" coal, by way of example, this for assuring a uniformly rising level of material relative to the... | 11/10/1981 |
| 4292904 | Furnace and boiler system and method of operation thereof A furnace system, especially a coal burning furnace and boiler system, in which the coal to be burned is placed on a grate at the bottom of the combustion chamber. According to the invention, automatic means are provided for supplying the coal to the boil... | 10/06/1981 |
| 4150631 | Coal fired furance A tangentially fired pulverized coal furnace in which the means for introducing fuel and air from the corners operate as independent firing systems at low ratings and contribute to the fireball at higher ratings. The coal flow through a nozzle is deflecte... | 04/24/1979 |
| 4140067 | Furnace control system A furnace control system to control burner operation of a multifuel furnace to reduce primary fuel consumption of either oil or gas of the multifuel furnace. The system controls a primary fuel to initially kindle a secondary fuel when the fire reaches a s... | 02/20/1979 |
| 4092935 | Process and apparatus for the incineration of solid fuel material A process and apparatus for the thermal destruction of solid fuel material in a gravity-type multiple hearth furnace having groups of two or more superimposed hearths. Solid fuel is fed to the upper hearth of each group of hearths. Auxiliary fuel is selec... | 06/06/1978 |
| 4060042 | Incinerator This invention relates to incinerators for the disposal of urban waste. More particularly, it relates to incinerators of the type comprising a rotary furnace of highly heat-resistant steel, having a horizontal axis of rotation and comprising a drying cham... | 11/29/1977 |
| 4009667 | Incinerator for combustible refuse An incinerator having a variable speed auger to continuously feed refuse into and through a combustion chamber and into a water filled ash receptacle. Preheated combustion air is supplied through tangential openings in and along the combustion chamber wal... | 03/01/1977 |
