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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7316562 | Method and system to ignite inflammable fluids A method is described for igniting discharges of inflammable fluids, such as gases which are discharged in a flare, where an ignition pellet is set in motion towards the fluid discharge along a conducting body and made to detonate in or near the fluid discharge, so ... | 01/08/2008 |
| 7229278 | Flame quality and fuel consumption monitoring methods for operating a primary burner A control system for controlling an oil or gas burner heating system comprises an ultraviolet flame sensor. Flame is detected and preanalyzed by the control for flame quality factors reflecting the degree of drift from optimal operating conditions including the aver... | 06/12/2007 |
| 7033166 | Valve having mechanism for diverting reverse gas flow The present invention is to provide a valve with a safety mechanism for diverting reverse gas flow being mountable in a gas lighter wherein a shoulder is formed around a mouth proximate a forward opening of a sleeve and is spaced apart from the forward opening by a ... | 04/25/2006 |
| 6945509 | Universal valve switch A universal valve switch for signaling the operative state of a valve assembly is disclosed that is attached to the body of the valve assembly using a bracketing arrangement. The valve switch comprises a housing defining a chamber and an aperture formed through the ... | 09/20/2005 |
| 6942482 | Combustion control device A safety circuit 31, which compulsorily closes an on-off valve for supplying a gas to a burner when a microcomputer for performing a combustion control is in an abnormal condition, does not operate unless abnormality occurs to the microcomputer 1, and ... | 09/13/2005 |
| 6923640 | Flame burner ignition system An ignition system includes a burner, a power supply, an electrical system including a ground conductor, and an ignition module. The ignition module includes a first input, a second input, and an output. The output is operatively coupled to the burner, while one of ... | 08/02/2005 |
| 6908299 | Combustion apparatus A combustion apparatus 2 has a fuel spraying nozzle 12, a feed canal 16 and a return canal 17, both the canals connected to the nozzle, with the former canal 16 feeding a fuel to the nozzle and with the latter canal 17 allow... | 06/21/2005 |
| 6890170 | Heater with glow plug/flame monitor A heater in which, during the glow plug ramp time interval, the amount of energy supplied per unit of time to the glow plug/flame monitor can be successively changed, and a control unit which is operationally coupled to the glow plug/flame monitor. To enable continu... | 05/10/2005 |
| 6715483 | Telescopic linkage for household appliances A telescopic linkage, in particular, for gas cooking points includes an arresting mechanism between two longitudinal telescopic bodies, one inserted inside the other in a longitudinal direction, optionally opened, by manual rotation at one linkage end, for changing ... | 04/06/2004 |
| 6652265 | Burner apparatus and method A burner apparatus is operated in a plurality of distinct modes. In a startup mode, flows of oxidant and primary fuel are ignited by an igniter and are provided simultaneously with a flow of secondary fuel until a process chamber reaches the auto-ignition... | 11/25/2003 |
| 6517342 | Device for igniting fuel A device for igniting fuel, comprising at least one burner, the device comprising ignition means comprising an ignition element, the ignition means further comprising a movable element which is connected to a fluid line, such that a fluid contained in the... | 02/11/2003 |
| 6478574 | Pump purge for oil primary An oil burner control system is disclosed in which an extended time may be temporarily selected, in situations such as initial set up or periodic maintenance, for priming the pipes, filters and pumps, before a safety lockout of system operation occurs, wh... | 11/12/2002 |
| 6471507 | WSL gas igniter The WSL Gas Igniter is, in essence, a small, reuasable gas bomb intended to be used in the testing of fire suppression systems. The device has two main parts. The main parts are the control box and the igniter head. The control box controls all aspects of... | 10/29/2002 |
| 6390807 | Pot type oil burner with unnoticeable bad odor The present invention relates to a structure in which an unburnt gas can be prevented from being diffused into a room while suppressing the generation of the unburnt gas during the extinction operation of a pot type oil burner. During the extinction opera... | 05/21/2002 |
| 6375454 | Controllable combustion device A combustion device for providing a stream of combustion products. In particular, there is a combustion device, utilizing micro-sized combustion tubes, that can 1) control firing profiles of an array of combustion tubes, 2) control acoustics generated the... | 04/23/2002 |
| 6247921 | Apparatus for generating a spark An apparatus for generating a spark, particularly for igniting the gas in a gas appliance. The apparatus includes a spark generator adjacent to a combustible gas burner. The spark generator consists of at least two spark electrodes connected to a high vol... | 06/19/2001 |
| 6244853 | Gas burner and a gas powered heating device A soldering iron (1) comprises a soldering head (4) connected to a handle (2). A cylindrical catalytic element (20) located in a combustion chamber (8) converts gas to heat for heating a soldering tip (15). An electrode (40) located within the catalytic e... | 06/12/2001 |
| 6217312 | Ignition system for a gas appliance An ignition system for a gas appliance comprises an ignition controller that receives a current from a power source. The ignition controller is also coupled to an ignitor and to a current actuated valve that releases a flow of gas when the current is grea... | 04/17/2001 |
| 6171098 | Rodent exterminating apparatus The present portable exterminating apparatus uses an ignite charge of gas to produce both concussion and heat within the burrow of a rodent, along with residual toxic fumes, all contributing to rodent extermination. The apparatus includes a barrel, an inj... | 01/09/2001 |
| 6048198 | Catalytic combustion type heater A catalytic combustion type heater set so as to reduce the exhaust emission at the time of ignition and the time of extinguishment by, at the time of ignition, providing a precombustion period and making the amounts of the fuel and air fed larger than the... | 04/11/2000 |
| 5617841 | Grate with self ignitor for burning pellet fuel Stoves fueled by biomass pellets are provided with a grate assembly that supports the pellets for combustion and directs combustion gas into the fire. The grate assembly includes a passive grate of equally or unequally spaced rods. The design of the rods ... | 04/08/1997 |
| 5577905 | Fuel control system, parts therefor and methods of making and operating the same A fuel control system, parts therefor and methods of making and operating the same are provided, the fuel control system comprising an ignition unit for igniting fuel issuing from a burner, and a flame detecting unit for detecting flame at the burner, the... | 11/26/1996 |
| 5549469 | Multiple burner control system A control system for a multiple burner furnace has a programmable processor interfaced to hardware input and output circuitry associated with the furnace. The programmed processor provides a number of operating modules including a polling module, a startu... | 08/27/1996 |
| 5470223 | Microprocessor controlled fuel and ignition control for a fuel burning device A primary control unit and ignitor using a microprocessor for fuel and ignition control and intelligent flame monitoring of a fuel burning device such as kerosene fired heaters. The control unit will function with a voltage supply ranging from 30 to 264 v... | 11/28/1995 |
| 5425631 | Controlling a gaseous fuel burner and control valve therefor An electrically operated line valve has its outlet connected to the inlet of the manifold for supplying the user actuated individual gas burner valves and a user actuated line power switch is closed before opening of any of the burner valves. A valve posi... | 06/20/1995 |
| 5360335 | Fuel burner control system with selectable standing pilot mode A burner control system with an interrupted or intermittent type of pilot burner has a special feature allowing transitions between a pilot flame hold state where the pilot flame only burns and the run state where the main burner is operating. Each transi... | 11/01/1994 |
| 5267849 | Spark igniting a fuel burner At least two sets of point-to-flat spark electrodes are connected for high voltage excitation from a pulse source such as individual secondary windings of a common transformer. Each secondary winding has one end connected to one of the pointed electrodes,... | 12/07/1993 |
| 5085574 | Fail-safe valve relay driver circuit for gas burners A fail-safe gas valve driver circuit controlling the gas supply line of a gas burner, which circuit in its essential circuit elements (FIG. 1) includes an appropriate switching means (S1) effectively feeding a pulsed DC wave form into the rest of the valv... | 02/04/1992 |
| 4627416 | Water heater A water heater is disclosed having a heat exchanger, a main burner means for heating the heat exchanger, a standing burner, a main fuel passage means for supplying fuel to the main burner, a manual valve on the main fuel passage means which is operable by... | 12/09/1986 |
| 4422844 | Snap acting thermostatic fluid valve and electrical switch coupled thereto A unitary assembly includes a thermostatically controlled valve and an electric switch coupled for operation therewith. Both the valve and the electric switch are operated under the control of a thermostatic actuator which effectuates operation through a ... | 12/27/1983 |
| 4403946 | Igniter utilizing piezo-electric element Disclosed in this invention is an igniter making use of a piezo-electric element, comprising a stator, a movable piezo-electric unit, and a conductor provided coaxially in a cylindrical body as an assembly. The movable piezo-electric unit incorporates a p... | 09/13/1983 |
| 4402663 | Automatic ignition and flame detection system for gas fired devices Improved automatic ignition system (10) for gas fired devices such as boilers, clothes dryers, ranges, and the like. The system (10) is of the type including a variable resistance ignition means (16) having a particular temperature characteristic disposed... | 09/06/1983 |
| 4352656 | Gas appliance control device An electrical control circuit is disclosed for controlling the operation of a pilotless gas system including an igniter and a gas supply valve, wherein the gas supply valve is initially opened a predetermined time after the igniter is activated, and the i... | 10/05/1982 |
| 4304546 | Fluid flow sensing switch device and method of making the same A fluid flow sensing switch device having a housing provided with a fluid flow passage therethrough defined by an inlet and an outlet disposed in spaced coaxially aligned relation in the housing and separated by a valve seat controlled by a movable valve ... | 12/08/1981 |
| 4303387 | Enameled wire oven A recirculating oven having dual air plenum chambers each controlled by an individual blower receiving air and oxidized gases from a burner tube intermediate the plenums. The gases leaving the burner tube are drawn by the blowers into the respective plenu... | 12/01/1981 |
| 4298334 | Dynamically checked safety load switching circuit A control logic means or microcomputer controlled burner control system has been disclosed. The system utilizes a safety relay that has contacts that are in series with all of the other loads for the system. The safety relay contacts are checked prior to ... | 11/03/1981 |
| 4245978 | Gas burner control system An improved gas burner control system which eliminates the need for a pilot light for operation of a gas burner, including a pair of gapped electrical conductors forming a set of ignition points disposed adjacent to a gas burner, a sensor for detecting th... | 01/20/1981 |
| 4243373 | Direct ignition gas burner control system A gas burner control system wherein a burner is directly ignited by an electrical resistance igniter includes a pressure actuated switch effective to permit automatic re-cycle of the system in the event of an electrical power interruption or a gas pressur... | 01/06/1981 |
| 4242083 | Fluid flow sensing switch device A fluid flow sensing device having a housing provided with a fluid flow passage therethrough defined by an inlet and outlet separated by a valve seat controlled by a movable valve member that is operated by a pressure differential between the inlet and th... | 12/30/1980 |
| 4242082 | Fluid flow sensing switch device A fluid flow sensing switch device having a housing provided with a fluid flow passage therethrough defined by an inlet and an outlet separated by a valve seat controlled by a movable valve member that is operated by the pressure differential between the ... | 12/30/1980 |
