...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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 |
| 7330645 | Instant water heating apparatus for cleaning machine Provided is an instant water heating apparatus for a cleaning machine capable of instantaneously heating fluid passing through a flow path and preventing the temperature of the heated fluid from creating a laminar flow. The instant water heating apparatus includes a... | 02/12/2008 |
| 7147458 | Apparatus for heating injection molding fluid A heater assembly is described for mounting around a fluid flow channel in an injection molding apparatus. In one version, the heater assembly comprises: an inner tube made of a first heat conductive material having a first coefficient of thermal expansion, the inne... | 12/12/2006 |
| 7088915 | Modular tankless water heater A tankless water heater module is disclosed and includes a casing having a first end, a second end and a plurality of conduits formed therein. A top head manifold is coupled to the first end of the casing and includes a port aligned with each of the plurality of con... | 08/08/2006 |
| 7046922 | Modular tankless water heater A tankless water heater module is disclosed and includes a casing having a first end, a second end and a plurality of conduits formed therein. A top head manifold is coupled to the first end of the casing and includes a port aligned with each of the plurality of con... | 05/16/2006 |
| 6724985 | Hot-water heating apparatus for electric vehicle and hybrid vehicle A hot water heating apparatus for an electric vehicle and a hybrid vehicle has a compact heat source apparatus not requiring a wide space for setting. A communication pipe, in which water as a heat medium flows, and an electric heater are embedded in a heat conducto... | 04/20/2004 |
| 6607608 | Translatable fiber stripper A system for stripping an optical fiber includes a source of air and means for generating very short bursts of air. A heater heats the bursts of air to a temperature sufficient to remove the outer coating from an optical fiber, while maintaining the air i... | 08/19/2003 |
| 6605475 | Apparatus and method for sample delivery Apparatus and methods have been developed to deliver automatically a sample to a reaction vessel, an analytical device or any location where sample introduction or deposition is desired. A sample delivery system of the invention generally includes a housi... | 08/12/2003 |
| 6477324 | Shower heating device A shower heating device has an undulated tube, a plurality of semiconductor heating elements securely received in the undulated tube, a plurality of pairs of electrical plates each being provided to have one of the semiconductor heating elements sandwiche... | 11/05/2002 |
| 6201223 | Humidification control unit and method of manufacturing same A humidity regulating unit including a heating element housed inside a covering that has a porous retaining wall through which water does not pass but steam or gas passes. In one embodiment, the covering has several bulges along the circumference of the h... | 03/13/2001 |
| 6005228 | Electrical heating systems A thermally insulated substrate, e.g. a system of pipes, is maintained above a selected minimum temperature by means of one or more electrical heaters, preferably elongate self-regulating heaters. Each heater is successively switched on for a heat-up peri... | 12/21/1999 |
| 5930458 | High efficiency ultra-pure fluid heater An apparatus for heating a fluid such as ultra-pure de-ionized (UPDI) water is disclosed. The fluid heater includes an intermediate body portion, a bottom end cap assembly secured to one end of the intermediate body portion, and a top end cap assembly sec... | 07/27/1999 |
| 5736314 | Inline thermo-cycler Thermo-cycling for biological material is provided by a channel such as a capillary tube extending through a series of temperature control elements. Each temperature control element maintains the adjacent portion of the channel at a desired temperature. F... | 04/07/1998 |
| 5694515 | Contact resistance-regulated storage heater for fluids A storage fluid heater for heating a fluid, employs a heat storage unit, a heating element thermally coupled to the heat storage unit, and a heat recovery tube thermally coupled to the heat storage unit. The recovery tube is made from a material having a ... | 12/02/1997 |
| 5271086 | Quartz glass tube liquid heating apparatus with concentric flow paths A liquid heating apparatus 1 has a flow path 2 surrounded by a quartz glass tube 5 inside a tubular ceramic heater 4 which radiates infrared rays and has a PTC characteristic, and a flow path 3 which is formed between two quartz glass tubes 6, 7 which are... | 12/14/1993 |
| 5256844 | Arrangement in a pipeline transportation system The present invention relates to a transportation pipe or conduit (10, 20, 30) which preferably is adapted to be installed on the seabed between a permanent or floating off-shore platform (3) and an on-shore terminal (4). The transportation conduit compri... | 10/26/1993 |
| 5223696 | Steam generator for cooking apparatus, with an emptying device A steam generator is disclosed for a cooking apparatus, having an intermediate duct admitting discharge water into the lowest central portion of the enclosure of the generator, and connected to a vane pump whose outlet feeds into an outlet duct rising as ... | 06/29/1993 |
| 5138693 | Electric fluid heater with thermosphonic fluid circulation A fluid heater having a fluid chamber with a base wall and an upright sidewall is positioned above a feed chamber having an upper wall. A plurality of identical tubular passage heaters, each having an upper outlet end connected to the fluid chamber base w... | 08/11/1992 |
| 5095559 | Heating apparatus A heating apparatus comprises a closed vessel having thermally conducting walls and containing a gas that is heated by one or more electrical heating elements in the vessel. The vessel is received in a duct through which air is blown. The air is heated by... | 03/17/1992 |
| 4825042 | Continuous flow heater assembly for a beverage maker A beverage maker includes a continuous flow electric heater assembly of tubular construction adapted to be connected to a source of fresh water and is arranged for guiding fresh water therethrough for heating the fresh water to brewing temperatures, and a... | 04/25/1989 |
| 4825043 | Electric continuous flow heater for liquid containers A continuous flow electric heater for heating liquid contained in a liquid container has a plurality of parallel tubular heating ducts (7b) each bounded by a tubular wall (ib) having upper and lower ends connected respectively to a lower inflow chamber (1... | 04/25/1989 |
| 4556168 | Rapid response water heating and delivery system A rapid response water heating and delivery system having a flow restrictor which creates a pressure differential within the water inlet point to the heating system which is sensed by a pressure differential switch for activating the heating elements of t... | 12/03/1985 |
| 4447706 | Nozzle assembly with integrated PTC heater for prewarming fuel oil An oil burner system includes a burner nozzle connected to a supply of fuel oil by a nozzle assembly having integrated therein an electric heater for prewarming the oil fed to the nozzle. The nozzle assembly has first connector at one end directly connect... | 05/08/1984 |
| 4358652 | Fluid heater apparatus A fluid heater apparatus for providing heated fluid on demand, the apparatus including at least two microwave heating units with coiled tubing disposed in the microwave field and connected to a valving and electrical system wherein heated fluid is supplie... | 11/09/1982 |
| 4334141 | Combined electric water heating and vessel support plate for a beverage preparation device A combined water heating and vessel support plate for supporting the vessel of a beverage preparation device includes a heating slab having a water flow-through duct constituted by longitudinal apertures in a plurality of prismatic (preferably rectangular... | 06/08/1982 |
| 4145601 | Electric heating installation for heating high purity liquid and gaseous media The installation for heating liquid and gaseous media comprises at least one heating unit which consists of an insulating body whose external surface is coated with a conducting film. The heating unit is made as a combination of variable-section container... | 03/20/1979 |
| 4085333 | Conservation of electrical energy In an electric generator capable of producing surplus electrical energy at certain periods, that improvement which comprises utilizing the surplus electrical energy to directly heat an electricity conducting heat storing magma, the magma having passages t... | 04/18/1978 |