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| Number | Title | Issue Date |
| 7131282 | Defrosting The present invention relates to an apparatus and method for defrosting an absorption refrigerator comprising the steps of determining a defrost start time for defrosting of the low temperature compartment and higher temperature compartment, starting the absorption ... | 11/07/2006 |
| 7107786 | Apparatus for and method of venting hydrocarbon refrigerant leaks A hydrocarbon cooling system including a housing having a substantially rectangular base defining a diagonal, a front wall defining a first air inlet, a back defining a first air outlet, and a pair of side walls. The cooling system includes a condenser mounted withi... | 09/19/2006 |
| 7065970 | Condensers and their monitoring Disclosed is a method for operating a condenser of the type having a housing inside of which is disposed a bundle of water tubes, a steam inlet for steam to flow inside the housing for contacting the tube bundle for cooling, and having a stagnant air zone during ope... | 06/27/2006 |
| 7047760 | Combination AC/HP-refrigerator apparatus and method A combination AC/HP-refrigerator apparatus and method includes, according to one embodiment, a common condenser duct connected to an AC/HP device with a condenser and to a refrigerator wherein the AC/HP condenser is located in the common condenser duct above the ref... | 05/23/2006 |
| 7024880 | Portable icemaker and method for making ice An icemaking apparatus includes an evaporator tube, a driving vessel charged with liquid ammonia and a driving gas, a heat source, a return system, and a target material reservoir adapted to be placed in an operating position over the evaporator tube. The evaporator... | 04/11/2006 |
| 6823691 | Vapor compression refrigerant cycle In a vapor compression refrigerant cycle using refrigerant having a critical temperature equal to or less than sixty degrees Celsius, when refrigerant temperature detected by a sensor as a parameter of a low-pressure side refrigerant pressure is higher than a satura... | 11/30/2004 |
| 6595023 | Structure of evaporation region of absorption diffusion type refrigerating circulation The present invention provides a structure of an evaporation region of an absorption diffusion type refrigerating circulation. The refrigerating circulation comprises a generator, a rectifier, a condenser, an evaporator, a concentrated ammonia aqueous sol... | 07/22/2003 |
| 5878595 | Compact portable icemaker A continuously operable portable icemaker charged with an ammonia solution and pressured to about 450 pounds per square inch with hydrogen and powered with a source of heat to cause percolation of the ammonia solution acts to freeze water charged into a r... | 03/09/1999 |
| 5865039 | Method for operating an absorption refrigeration unit as well as an absorption refrigeration unit In a method for operating a refrigerating unit including an expeller, condenser, evaporator and absorber, with a solvent circulation, a working substance circulation and a by-gas circulation, the working substance ammonia is expelled from a rich ammonia s... | 02/02/1999 |
| 5715691 | Portable ice maker A compact no moving part refrigeration unit powered with a flame driven generator is contained along with a propane cylinder and necessary controls in a cylindrical upright unit with an expanded base; the unit is sized to make four to eight pounds of ice ... | 02/10/1998 |
| 5676202 | Heat exchanger In a heat exchanger according to the present invention, there are provided a filling container having a first containing section containing a hydrogen-absorbing metal material for middle or high temperature, a second containing section containing a hydrog... | 10/14/1997 |
| 4637218 | Heat pump energized by low-grade heat source A heat pump using zeolite as an adsorbent wherein thermal energy from adsorbing zeolite in a one hermetically sealed space is used to heat desorbing zeolite located in another hermetically sealed space, such heat being conveyed by heat exchanger conduits ... | 01/20/1987 |
| 4593538 | Refrigeration cycle operatable by low thermal potential energy sources The invention provides an absorption-refrigeration system including: generator means in which the vapor of a volatile refrigerant, dissolved in n absorbent, is driven off the absorbent by heat exchange with a source of thermal energy; condenser means in which t... | 06/10/1986 |
| 4458504 | Absorption refrigerating apparatus This invention relates to an arrangement in an absorption refrigerating apparatus, which operates with a pressure equalizing gas, and is provided with at least two absorbers. A height difference occurs between the liquid level in the standpipe of the boil... | 07/10/1984 |
| 4183227 | Heat pump A heat pump providing semi-continuous or substantially continuous refrigeration and/or heating in which liquid working fluid in a vaporizer vaporizes at a low pressure by extracting heat from a cold heat source and the vapors are adsorbed in at least one ... | 01/15/1980 |
| 4176529 | Absorption refrigerating unit A continuous cycle absorption refrigerating unit is disclosed. Means are provided for limiting the supply of coolant rich solution from an absorber vessel to the vapor forming end of the liquid heat exchanger of the thermosiphon pump whenever the refriger... | 12/04/1979 |
| 4137727 | Absorption refrigeration system with precooler and inert gas control In an absorption refrigeration system of the kind having an inert, non-condensible pressure-equalizing gas the flow of the gas is controlled by providing a flow restriction in the connection which conveys the stream of inert gas from the absorber to the i... | 02/06/1979 |
| 4051694 | Evaporative precooler for an absorption refrigerating apparatus An absorption refrigerating apparatus of the type operating with a pressure equalizing inert gas and having an evaporative precooler for the refrigerant condensate supplied to the evaporator system of the apparatus. The evaporative precooler is constructe... | 10/04/1977 |
