Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7974527 | Hot liquid dispenser Hot liquid dispenser includes a housing including first and second liquid-retaining chambers, the first chamber being accessible to enable liquid to be placed therein and the second chamber being situated within a closed interior space of the housing. A heating syst... | 07/05/2011 |
| 7817907 | Water heating vessel A tank for retaining and heating water is defined by tank walls, including a bottom wall portion comprised of stainless steel. The tank has a water inlet and a water outlet for dispensing hot water. An aluminum intermediate plate is brazed to the lower surface of th... | 10/19/2010 |
| 7322275 | Coffee machine A coffee machine, particularly an espresso machine, comprising a brewing device (6) for producing and dispensing coffee via a coffee dispensing nozzle (11), as well as a hot water boiler (2) having a fresh water supply line (1) and a hot ... | 01/29/2008 |
| 7298968 | Pumpless combination instantaneous/storage water heater system A representatively pumpless water heater system has an instantaneous water heater coupled in series with a storage water heater by piping circuitry incorporating a bypass valve and a mixing valve and useable to route pressurized incoming cold water sequentially thro... | 11/20/2007 |
| 7277628 | Heater for aircraft potable water tank A heater (10) for installation on a potable water tank (12). The heater (10) comprises a blanket (14) including an electrical resistance heating element (16) and a connection pad (18) for electrically connecting the heating ... | 10/02/2007 |
| 7187855 | Device for heating liquids and assembly for use in such a device The invention relates to a device for heating liquids, comprising: a first liquid container for liquid for heating, and a heating element connected to the first liquid container. The invention also relates to an assembly for use in such a device. Such a heating devi... | 03/06/2007 |
| 7034742 | Road curvature estimation and automotive target state estimation system A first Kalman filter estimates true measures of yaw rate and vehicle speed from associated noisy measures thereof generated by respective sensors in a host vehicle, and a second Kalman filter estimates therefrom parameters of a clothoid model of road curvature. Mea... | 04/25/2006 |
| 6938581 | Supplemental water heater tank and system A supplemental water heater tank and system features a supplemental tank with an inner vessel surrounded by an outer jacket. The space there between is generally evacuated of air so that the inner vessel is vacuum insulated. The supplemental tank includes water inle... | 09/06/2005 |
| 6928236 | Aircraft galley A galley 1 has a main body 10 constructed of a panel material, and the galley main body 10 has a table 20, a sink 30, a storage compartment 40 and a service cart housing compartment 60. A hot-water supply unit 100 ... | 08/09/2005 |
| 6785466 | Electric water heater having balanced wattage density water heating An electric water heater has a tank portion in which water to be heated is stored. The stored water is heated by a vertically spaced plurality of electric heating elements extending into the tank interior. The heating elements are of unequal wattages, and serve uneq... | 08/31/2004 |
| 6640052 | Dual temperature water dispensing device A water dispensing device includes a cold and a hot water tanks received in a housing, and a coupler coupled to the water tanks and coupled to a container. A device may be used for heating the water in the container to generate steam to the coupler, and a... | 10/28/2003 |
| 6539173 | Sensor controlled water heater and method of use A water heater apparatus for aircraft applications has three water heating tubes joined in series interconnection and positioned in side-by-side adjacency, where each of the tubes provides an electrical resistance heater part of a 3 phase electrical power... | 03/25/2003 |
| 6539171 | Flexible spirally shaped heating element The present invention provides heating elements and methods for their fabrication and use. The heating elements of this invention include a spirally shaped structure having a plurality of spiral forms, and may contain a thermally conductive, electrically ... | 03/25/2003 |
| 6424801 | Upright cylindrical water heater with top and bottom can covers A miniature water heater apparatus has three water heating tubes joined in series interconnection and positioned in side-by-side adjacency. The water heating tubes are enclosed within a cylindrical container with opposing closed ends. A top and a bottom c... | 07/23/2002 |
| 6256455 | Apparatus and method for preventing fire in a liquid heating tank An apparatus and a method for preventing fire in a liquid heating tank that utilizes resistive heating elements for raising the temperature of a flammable liquid are described. In the apparatus, a buffer tank is provided which is positioned under a proces... | 07/03/2001 |
| 6188840 | Process for the manufacturing of a pressure vessel and a pressure vessel, especially for a water heater, made by the process A process for the manufacturing of a pressure vessel made from a thermoplastic material or a thermosetting resin. The vessel comprises a first and a second vessel end part, and possibly an intermediate tube part. The vessel end parts include a circumferin... | 02/13/2001 |
| 6080971 | Fluid heater with improved heating elements controller An electrically powered water heater includes a plurality of heating elements for substantially instantaneous heating of fluid passing through the heater. A controller for powering the plurality of heating elements is responsive to a temperature sensor in... | 06/27/2000 |
| 5923819 | Molded polymeric fluid storage tank, and associated fabrication methods The body structure of a fluid storage apparatus, which may be used for both liquids and gases, is formed from a coaxially and sealingly joined series of one-piece molded polymeric body sections including opposite end sections having closed outer ends. Eac... | 07/13/1999 |
| 5773797 | Induction heated steam generating system The steam generating system utilizing a first container having a liquid chamber. The first container is surrounded by a conducting coil for generating a field and producing eddy currents on the container. Steam produced in the first container is sent to a... | 06/30/1998 |
| 5712951 | Electric water heater with primary and secondary pre-heatng chambers An electric water heater including a control unit, and a heating unit having a water container and an electric heating coil inside the water container and being controlled by a control unit, wherein a perforated heat-conductive cylinder is mounted inside ... | 01/27/1998 |
| 5668922 | Water heater having molded plastic storage tank and associated fabrication methods An electric water heater has a body structure formed in a manner eliminating the need for a separate metal water storage tank therein. The body structure is formed from a coaxially and sealingly joined series of one-piece molded plastic body sections incl... | 09/16/1997 |
| 5647055 | Method for cyclically dispensing water from a heated water apparatus A heated water apparatus which includes a reservoir for retaining a quantity of heated water and a controller for controlling the heated water apparatus. A controllable heater is coupled to the controller and the reservoir for controllably heating the wat... | 07/08/1997 |
| 5400432 | Apparatus for heating or cooling of fluid including heating or cooling elements in a pair of counterflow fluid flow passages A heating or cooling vessel for heating or cooling a fluid as it flows through the vessel includes an outer tubular shell and an inner tubular member mounted to the outer tubular shell. The inner tubular member includes a central passage defining a first ... | 03/21/1995 |
| 5351337 | Self-contained pressurized water delivery system An improved self-contained pressurized water system for use in remote areas, vehicles, or whenever conventional sources of potable water are not readily available including at least one pressure detection switch for rendering system inoperative and incorp... | 09/27/1994 |
| 5309821 | Coffee brewing urn A beverage brewing apparatus which includes a tank for containing heated water. Partitions are positioned in the heated water tank to define holding sections and a brewing section. Water is introduced into the holding sections of the tank and heated there... | 05/10/1994 |
| 5210819 | Heating device for a heat transfer medium A heating device for a circulating heat transfer medium includes first and second heating stages. Each of the first and second heating stages has a first chamber and a second chamber disposed above and communicated with the corresponding first chamber. Th... | 05/11/1993 |
| 5149399 | Liquid evaporator A liquid evaporator includes an air-tight outer container containing liquid therein, the liquid container having support legs adjacent the bottom surface thereof; an inner container mounted on the legs for partitioning the interior space of the outer cont... | 09/22/1992 |
| 5093897 | Apparatus for dispensing quantities of water of variable temperatures An apparatus which dispenses small quantities of water of variable temperatures, and improved quality and taste, comprising a reservoir connected to the mains for heating and storing water at a temperature above its atmospheric boiling point, and an outle... | 03/03/1992 |
| 5006689 | Vacuum insulated storage-type electric water heater having an external bubble pump heating unit A hot water boiling apparatus includes a hot water storage tank. The storage tank has an inner tank storing water therein, an outer tank surrounding the inner tank, and a vacuum heat insulation layer defined between the inner and outer tanks and surroundi... | 04/09/1991 |
| 4805649 | Beverage glass washer In the glass washer of this invention, a linear conveyor carries glasses successively through a prewash, a detergent wash and a germicidal rinse. Once discharged from rinsing nozzles, rinsing liquid is collected in a prewash tank from which it is pumped e... | 02/21/1989 |
| 4757182 | Electric water heater for vending machines An electric water heater (10) for a vending unit has an elongated cylindrical housing (11) defining a water heating chamber divided lengthwise into a large inlet subchamber (24) and a small outlet subchamber (27) by a panel (26) extending the entire lengt... | 07/12/1988 |
| 4692592 | Compartmentalized electric liquid heater A compartmentalized storage tank-type electric liquid heater includes a housing with upper and lower portions. A fluid inlet is defined in the lower portion and a fluid outlet is defined in the upper portion. A plurality of panels or other partitioning st... | 09/08/1987 |
| 4601263 | Apparatus for supplying boiled water A boiled water supplying apparatus which includes: a water heating closed tank having a water inlet and a water outlet; a conduit having one open end thereof connected to the water outlet and the other open end thereof arranged at a level higher than the ... | 07/22/1986 |
| 4593169 | Water heater A water heater in which water is heated by microwave energy. A tank which holds water is separated by a horizontal partition into a relatively small upper chamber and a larger lower chamber. Incoming cold water enters the upper chamber and is heated by a ... | 06/03/1986 |
| 4575615 | Hot water supplying device A hot water supplying device is provided with a hot water supplying tank which includes first and second tank chambers. Warm water of about 85° C. is stored in the first tank chamber and hot water, which is higher in temperature than the warm water in th... | 03/11/1986 |
| 4514617 | Two-stage electric water heater A two-stage electric water heater adapted to store water at a comparatively low temperature and to heat the outflowing stored water to a desired higher temperature includes a storage vessel provided with an elongated thermostatically controlled electric r... | 04/30/1985 |
| 4288674 | Microwave actuated steam generator An apparatus and method of using the same in which microwave energy transforms water in the form of finely divided droplets having a large aggregate surface area into pressurized steam. The method of the present invention has a high thermal and electrical... | 09/08/1981 |
| 4242569 | Multiple tank electric water heater A hot water heater includes inner and outer tanks for holding water. The tanks are interconnected in such a manner that the cold water is received in the outer tank prior to flowing into the inner tank to be heated. Hot water is drawn from the inner tank ... | 12/30/1980 |
| 4140104 | Hot water feeding devices A hot water feeding device having an upper water tank and a lower water tank connected with the upper tank by a conduit. The water is heated by heater means provided for the lower tank. The hot water is selectively taken out from the lower tank through a ... | 02/20/1979 |
| 4070289 | Preparation of pyrogen-free water A method of decomposing pyrogenic molecules in contaminated water which is disposed within a closed water container to produce, with surprising low energy requirements, pyrogen-free water. The method comprises placing water which is suspected to contain pyroge... | 01/24/1978 |
