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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 7332838 | Motor-fan assembly and combustion-type power tool employing the same To connect a motor shaft to a fan, a connection rod is used that is symmetrical in shape with respect to a longitudinal axis of the connection rod. The connection rod includes a first part formed with a hole in coaxial with the longitudinal axis, and a second part f... | 02/19/2008 |
| 7241117 | Motor shaft assembly and method A method for assembling a motor shaft with a bearing, a motor housing, and an impeller is disclosed. A motor shaft extension is used to retain the impeller axially on the motor shaft and allows the motor shaft to drive an additional component, such as an impeller, l... | 07/10/2007 |
| 7008219 | Boil-off gas processing system using electric heater A boil-off gas processing system for reliably burning a boil-off gas. The system processes a boil-off gas produced from a liquid hydrogen tank which is built in a hydrogen fueled vehicle. The system includes a mixing device for introducing air into a discharge passa... | 03/07/2006 |
| 6953037 | Direct vent fireplace installation A direct vent fireplace installation assembly is provided that includes a furniture unit having an enlarged receptacle well above the ground, and a direct vent fireplace unit positioned in the receptacle of the furniture unit. The fireplace unit has a firebox contai... | 10/11/2005 |
| 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 |
| 6325060 | Stack-equipped far infrared space heater A stack-equipped far infrared space heater capable of permitting a space of a relatively large volume through which hot air for fan forced space heating fails to carry well to be satisfactorily heated by far infrared rays. The space heater includes a comb... | 12/04/2001 |
| 6109912 | Fuel vaporizer A heater with a fuel vaporizer. The vaporizer has an uptube for carrying fuel and is centrally located within the burner. A cap is located over the uptube. A tubular casing forms an annulus about the uptube and communicates with the cap. Vaporizer fuel is... | 08/29/2000 |
| 5947717 | Vaporizing combustion chamber for a heater running on liquid fuel A vaporizing combustion chamber for a heater running on liquid fuel, in particular a vehicle heater, in which inter alia two pipes disposed concentrically one inside the other form therebetween an annular chamber which is closed at a first end. At the sec... | 09/07/1999 |
| 5127822 | Combustion apparatus with atomizer and method of controlling same Provided is an atomizer-equipped combustion apparatus including an atomizing device for atomizing a fuel, a spray chamber for mixing the fuel atomized by the atomizing device with air to form a mixture, and for moving the mixture downwardly toward an open... | 07/07/1992 |
| 4844050 | Evaporation apparatus for active ingredients such as pyrethrum incorporated into solid carrier materials In order to improve an apparatus for the evaporation of active ingredients such as pyrethrum or similar insecticides, air-improving, bactericidal, disinfecting and/or, for example, curing substances incorporated in cellular boards or other solid carrier m... | 07/04/1989 |
| 4790746 | Vaporizing fuel burner The present invention relates to a combustion equipment to be employed for heating in domestic use or the like. The combustion equipment is provided with an air control cylinder having a closed bottom surface inwards of an inner flame cylinder, and an out... | 12/13/1988 |
| 4767316 | Fuel supply system for oil burner The fuel supply system includes an air pipe which is connected between a fuel oil supply pipe and an inlet side of a forced air passage and is provided at a middle portion thereof with an elevation positioned above any portion of the fuel supply pipe betw... | 08/30/1988 |
| 4750471 | Evaporation apparatus for active ingredients such as pyrethrum incorporated into solid carrier materials In order to improve an apparatus for the evaporation of active ingredients such as pyrethrum or similar insecticides, air-improving, bactericidal, disinfecting and/or, for example, curing substances incorporated in cellular boards or other solid carrier m... | 06/14/1988 |
| 4678431 | Vaporization burner for a heater operated by means of liquid fuel For a heater operated by means of liquid fuel, a vaporization burner is provided that has a large-volume active first vaporization part for the very volatile components of the fuel and a large-surface second vaporization part for the least volatile fuel c... | 07/07/1987 |
| 4611985 | Vaporization burner A vaporization burner of the type that has a carrier connected with a fuel line on which an absorbent body is located is provided with a heat conducting body for quicker fuel vaporization and for increasing the temperature on the surface of the carrier th... | 09/16/1986 |
