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| Number | Title | Issue Date |
| 7290412 | Washing machine A washing machine in which steam and hot water are supplied to heat wash water. The washing machine includes a water tub for containing wash water, a steam generating unit for heating water supplied thereto, thereby generating steam, a water supply unit for supplyin... | 11/06/2007 |
| 7254955 | Heat exchange apparatus and refrigerating machine In a refrigerating machine, a water cooling device having a cooling tower or an ice heat storage tank is provided as a heat exchanger for cooling refrigerant after heat-exchange in a heat-source side heat exchanger between an outdoor expansion valve and the heat-sou... | 08/14/2007 |
| 7216654 | Dishwasher A dishwasher having a dishwasher is provided in which an intake port cover for closing a steam intake port is mechanically operated. The dishwasher has a cavity enclosed in part by a door, and a fan motor which drives a fan installed at an upper portion of the door.... | 05/15/2007 |
| 7214354 | Autoclave The invention relates to an autoclave for medical appliances and instruments with a chamber (13) in which the appliances to be sterilized are located, with a steam generator (5) and a condensate collector (11), whereby the steam generator is con... | 05/08/2007 |
| 7066396 | Method and apparatus for enhanced heat recovery from steam generators and water heaters A heating system having a steam generator or water heater, at least one economizer, at least one condenser and at least one oxidant heater arranged in a manner so as to reduce the temperature and humidity of the exhaust gas (flue gas) stream and recover a major port... | 06/27/2006 |
| 5285962 | Method and apparatus for automatically transferring and measuring wet steam between multiple constant demand users A system for automatically controlling the quantity and quality of steam to a plurality of constant demand customers has a steam generating source, and pressure regulator means and steam mass flow measurement means between each constant demand customer an... | 02/15/1994 |
| 5161739 | Multi-type air heating apparatus utilizing phase variation of heating medium An outdoor unit comprises a combustion unit for presenting combustion heat, a heating medium heating part for heating the heating medium with the combustion heat to vary in phase from liquid to gas, and a heating medium transferring part. A plurality of i... | 11/10/1992 |
| 5056714 | Low cost high efficiency steam heating system A low cost-high efficiency steam heating system is disclosed. A pressure sensing switch in the radiation device triggers a timer when a predetermined pressure is achieved in the radiator. The timer is interposed between a thermostat and boiler-burner asse... | 10/15/1991 |
| 4690102 | Water heater and distiller apparatus A water heater and distiller apparatus is provided in which condensing steam is the distilling portion of the apparatus giving up its latent heat to water which is being heated in the water heating portion of the apparatus. In a preferred embodiment, prod... | 09/01/1987 |
| 4645125 | Heat transport method A transport mechanism for heat in housing includes the use of liquid media such as warm water and gaseous media such as heated air. For either of these heat transport media, a circulation pump or a blower is necessary with the exception of special cases. ... | 02/24/1987 |
| 4613071 | Steam heating equipment with condensate vessel and return line Steam heating equipment for the interior of a room recirculating heating fluid after it has condensed in a heat emitter for heating the room. The heat media liquid is sealed in an enclosed steam generator which supplies steam to the heat emitter via a ste... | 09/23/1986 |
| 4585054 | Condensate draining system for temperature regulated steam operated heat exchangers A system for draining condensate from a temperature regulated, steam operated heat exchanger. A buffer tank having a volume at least equal to that of the steam compartment is connected to the steam side of the heat exchanger, and a drain line extends from... | 04/29/1986 |
| 4495899 | Low pressure relief valve assembly for high pressure boiler Apparatus for providing for low pressure operation of a high pressure boiler including a low pressure relief valve mounted on the boiler and adapted to release steam from the boiler at a steam pressure lower than the pressure developed during high pressur... | 01/29/1985 |
| 4398663 | Heating system with steam radiators A building heating system with a plurality of steam radiators is provided with a control unit for the steam boiler. The control unit receives signals representative of the outside temperature and the pressure of the steam in the feeder conduit. The contro... | 08/16/1983 |
| 4370949 | Waste heat recovery system This invention relates to a system for reclaiming or recovering heat which would otherwise be lost from a heating plant. The invention accordingly relates to a heating plant incorporating a plurality of boilers, including a stand-by boiler, there being me... | 02/01/1983 |
| 4147302 | Home heating system control A heat control system designed to control individual radiators in a heating system where there is only one boiler supplying steam, or one heated fluid source such as a utility steam supply, and where there is no separate condensate return line; each radia... | 04/03/1979 |
| 4079887 | Temperature control system A temperature control system for monitoring and controlling a zone supplied with low pressure steam is disclosed. The system comprises a series of balanced Wheatstone bridges which, when calibrated, provide a variety of manual and automatic control condit... | 03/21/1978 |
| 4026348 | Heat pipe switch Thermal energy transfer apparatus having a controllably variable thermal conductance comprises a heat pipe having a capillary wick structure therein, a circulating supply of working fluid which is controlled by a heater, and a thermostatic heater control ... | 05/31/1977 |
| 4019680 | Steam generating system including means for reinitiating the operation of a steam bound boiler feed pump An improved steam boiler system includes an automatic means for injecting cool water into a steam bound boiler feed pump. In a first embodiment a pressure sensitive check valve detects the drop of pressure in the steam bound pump and in response thereto d... | 04/26/1977 |
| 3949936 | Control system for boilers furnishing steam for heating Time controlled switching apparatus is connected in series circuit with a steam pressure sensor and a line starter associated with a boiler firing system. The switching apparatus is rendered electrically conductive during spaced time intervals of successi... | 04/13/1976 |
| 3940058 | Steam generating system including means for reinitiating the operation of a steam bound boiler feed pump An improved steam boiler system includes an automatic means for injecting cool water into a steam bound boiler feed pump. In a first embodiment a pressure sensitive check valve detects the drop of pressure in the steam bound pump and in response thereto d... | 02/24/1976 |
