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| Number | Title | Issue Date |
| 7327951 | Instant water heater with PTC plastic conductive electrodes An instant water heater utilizing positive temperature coefficient plastic electrically conductive material structures for electrodes. The heating of the water is not generated by the electrodes, but instead by the resistance of the water to the electrical current f... | 02/05/2008 |
| 7248792 | Dental water heater The present invention relates to a dental water heater. The water heater has a columnar body, and the body includes heating means extending in the axial direction of the body, and a plurality of layers of water channel sections arranged around the heating means. Eac... | 07/24/2007 |
| 6941064 | Heater for vacuum cleaners A heater for fluids including a housing made of a non-metallic material and having an internal cavity. The housing has an inlet and an outlet, each of which are in fluid communication with the internal cavity. An elongated electrical heating element is disposed with... | 09/06/2005 |
| 6449429 | Indirectly heating type of electric boiler apparatus Disclosed is an indirectly heating type of an electric boiler capable of operating at a high efficiency using less energy. The boiler comprises a rubber casing including a port for receiving a cool water, a port for exhausting a hot water, the ports being... | 09/10/2002 |
| 6402943 | Diesel filter system The present invention provides a diesel filter system and a fuel heating device comprising a PTC heating element and a rod-shaped heat conductor which is in thermal contact with PTC heating element. The rod-shaped heat conductor comprises at least two tub... | 06/11/2002 |
| 6236022 | Hot shelf tower dryer for a cotton gin using electrical heating elements A hot shelf tower dryer includes a casing having substantially parallel shelves which alternately extend from opposite ends of the tower casing to form a repetitively convoluted passage. At least one of the shelves has a hollow interior or chamber. Dispos... | 05/22/2001 |
| 6147327 | Hot shelf tower dryer for a cotton gin using heating elements A hot shelf tower dryer includes a casing having substantially parallel shelves which alternately extend from opposite ends of the tower casing. As configured, the dryer includes a repetitively convoluted passage. At least one of the shelves has a hollow ... | 11/14/2000 |
| 6144802 | Fluid heater for semiconductor device A fluid heater for a semiconductor device is provided to uniformly heat a gas, for thereby improving uniformity and speed of gas reaction and thus increasing the yield of semiconductor device fabrication. The fluid heater includes a main heater of a helic... | 11/07/2000 |
| 5729653 | Fluid warming system Devices and methods for heating a fluid to normothermic temperature prior to delivery of the fluid to a patient are disclosed. In one embodiment, a fluid to be warmed prior to delivery to a patient can be passed through a polymeric, flow-through chamber d... | 03/17/1998 |
| 4563571 | Electric water heating device with decreased mineral scale deposition An electric water heater includes an outer cylindrical structure having first and second openings defining a water inlet and outlet, respectively, and an inner cylindrical structure having an inner passage therethrough and coaxially disposed in the outer ... | 01/07/1986 |
| 4539431 | Pulse anneal method for solar cell A solar cell including a pulse annealed layer of crystalline, amorphous or polycrystalline semiconductor material of one conductivity type and either a layer of opposite conductivity type or a liquid electrolyte forming a collector junction therewith. A m... | 09/03/1985 |
| 4410791 | Electric instant water heater An electric instant water heater mounted in a cold water line in proximity to a water tap includes an elongated core molded from a ceramic material and having a rectangular cross-section water flow passage extending therethrough from a circular inlet conn... | 10/18/1983 |
| 4289954 | Energy conserving system for use with heating and/or hot water systems and the like A fully automatic system for providing electrical energy to heating and/or hot water systems in facilities serviced by single phase a.c. comprising a three-phase generator driven by single phase a.c. motor means intermittently operated on a load requireme... | 09/15/1981 |
| 4286140 | Apparatus for raising a liquid to a given temperature An apparatus for raising a liquid to a given temperature and for controlling and regulating this temperature has a vertical cylindrical enclosure, a vertical tube housing a heating resistor, and a first and a second ferrule located in this order between t... | 08/25/1981 |
| 4223206 | Method and apparatus for electrically heating corrosive vapors A heating device for heating corrosive vapours includes a casing defining a vapour flow path having an inlet and an outlet. A tubular metallic electric resistance heating element is disposed in the flow path and arranged such that the vapours being heated... | 09/16/1980 |
| 4085308 | Electric water heater for showers The heater has various provisions which severally and in combination improve its life, protect it from overheating and burnout under all operating conditions, and adapt it for shower use with maximum safety. These include a special arrangement with a wate... | 04/18/1978 |
