Patents by Inventor Uwe Rockenfeller

Uwe Rockenfeller has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5390509
    Abstract: The basic apparatus of the invention is a triple effect absorption cycle apparatus, comprising first, second and third generators each containing an aqueous absorption fluid and operating at successively higher temperatures; first, second and third condensers operating at successively higher temperatures, and operatively communicating with the generators; first heat exchange means cooperating between the third and second generators, and between the second condenser and first generator, for directing energy therebetween; one, two or three absorbers and one, two or three fluid loops for directing aqueous absorption fluid between absorbers and second heat exchange means for exchanging energy between aqueous absorption fluid flows in said loops; and one, two or three evaporators operatively communicating with the absorbers.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: February 21, 1995
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Paul Sarkisian
  • Patent number: 5384101
    Abstract: Reaction rates in chemisorption reactions involving solid reactants and gaseous ligands are improved by maintaining optimized solid density throughout the reaction. Methods and apparatus which restrict volumetric solid expansion, compression of the solid reactant, and mixture with inert solid porous or particulate materials are disclosed.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: January 24, 1995
    Assignee: Rocky Research
    Inventor: Uwe Rockenfeller
  • Patent number: 5360057
    Abstract: Apparatus for simultaneously supplying heating and cooling or refrigeration comprises first and second reactors each containing a complex compound of a metal salt and a gaseous refrigerant adsorbed thereon, a condenser, refrigerant conduit means for directing the refrigerant to and from the condenser and reactors, and fluid conduit means for directing heat transfer fluid in heat exchange communication with the condenser and selectively with the reactors. In another embodiment each reactor contains a different salt and instead of a condenser, energy is recovered through heat exchange fluid in heat exchange communication with the reactors.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: November 1, 1994
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Lance D. Kirol
  • Patent number: 5335510
    Abstract: An improved apparatus for staging solid-vapor complex compounds comprises heat exchange means for transferring heat from super-heated refrigerant vapor from a desorbing reactor to cooled refrigerant vapor directed to an adsorbing reactor. In another embodiment a liquid subcooler is used to cool liquid refrigerant passing from a condenser to an evaporator with cold refrigerant gas directed to an adsorbing reactor from the evaporator.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: August 9, 1994
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Lance D. Kirol
  • Patent number: 5335515
    Abstract: The basic apparatus of the invention is a triple effect absorption cycle apparatus, comprising first, second and third generators each containing an aqueous absorption fluid and operating at successively higher temperatures; first, second and third condensers operating at successively higher temperatures, and operatively communicating with the generators; first heat exchange means cooperating between the third condenser and second generator, and between the second condenser and first generator, for directing energy therebetween; one, two or three absorbers and one, two or three fluid loops for directing aqueous absorption fluid between absorbers and second heat exchange means for exchanging energy between aqueous absorption fluid flows in said loops; and one, two or three evaporators operatively communicating with the absorbers.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: August 9, 1994
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Paul Sarkisian
  • Patent number: 5328671
    Abstract: In a chemisorption reaction process wherein a polar gas is repeatedly alternately adsorbed and desorbed on a complex compound formed by adsorbing said polar gas on a metal salt, said complex compound capable of having a first density if allowed to expand without restriction during said adsorption, a method of increasing the reaction rates of said chemisorption reaction process comprises controlling the volumeric expansion of said complex compound formed during at least the initial adsorption reaction of said polar gas on said metal salt to form at least a partially structurally immobilized, self-supporting, coherent, reaction product mass having a second density. The metal salt may also be mixed with a zeolite, activated carbon, activated alumina or silica gel prior to the first adsorption reaction.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: July 12, 1994
    Assignee: Rocky Research
    Inventor: Uwe Rockenfeller
  • Patent number: 5298231
    Abstract: Reaction rates in chemisorption reactions involving solid reactants and gaseous ligands are improved by maintaining optimized solid density throughout the reaction. Methods and apparatus which restrict volumetric solid expansion, compression of the solid reactant, and mixture with inert solid porous or particulate materials are disclosed.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: March 29, 1994
    Assignee: Rocky Research
    Inventor: Uwe Rockenfeller
  • Patent number: 5295358
    Abstract: An improved apparatus for staging solid-vapor complex compounds comprises heat exchange means for transferring heat from super-heated refrigerant vapor from a desorbing reactor to cooled refrigerant vapor directed to an adsorbing reactor. In another embodiment a liquid subcooler is used to cool liquid refrigerant passing from a condenser to an evaporator with cold refrigerant gas directed to an adsorbing reactor from the evaporator.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: March 22, 1994
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Lance D. Kirol
  • Patent number: 5291753
    Abstract: An improved apparatus for staging solid-vapor complex compounds comprises heat exchange means for transferring heat from super-heated refrigerant vapor from a desorbing reactor to cooled refrigerant vapor directed to an adsorbing reactor. In another embodiment a liquid subcooler is used to cool liquid refrigerant passing from a condenser to an evaporator with cold refrigerant gas directed to an adsorbing reactor from the evaporator.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: March 8, 1994
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Lance D. Kirol
  • Patent number: 5289690
    Abstract: The invention disclosed herein relates to an apparatus for being detachably connected to a chemical or refrigeration system for selectively receiving and dispensing a gaseous refrigerant or chemical from and to that system, respectively, including a vessel having a chamber capable of maintaining a pressurized gas therein, gas inlet means for directing the gas: to and from the chamber, and connection means for connecting the gas inlet to a refrigeration or chemical system; a plurality of heat exchange conduits exposed in the chamber for directing heat exchange fluid therethrough and fluid inlet and outlet means communicating exteriorly of the vessel for directing the fluid to and from the conduits, respectively; and a solid adsorbent capable of alternately adsorbing and desorbing the gaseous refrigerant or chemical and positioned in thermal communication with each of the heat exchange conduits.
    Type: Grant
    Filed: August 6, 1992
    Date of Patent: March 1, 1994
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Lance D. Kirol
  • Patent number: 5271239
    Abstract: Apparatus for cooling components or subassemblies of equipment at one or more locations comprises one or more first and one or more second reactors, remote from said equipment, each reactor containing a complex compound of a polar refrigerant and a metal salt a first heater in said first reactor and a second heater in said second reactor for heating the complex compound therein, respectively, a condenser, remote from said equipment, for converting gaseous refrigerant to a liquid phase, and means for cooling said condenser with ambient air, a plurality of one or more evaporators, each in independent heat exchange communication with one or more of said components or subassemblies within said equipment, valve means cooperating with first conduit means for alternately directing polar refrigerant from said first and said second reactors, respectively, to said condenser, and second conduit means for directing ammonia from said condenser to said evaporators and third conduit means for directing ammonia from said eva
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: December 21, 1993
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Lance D. Kirol
  • Patent number: 5263330
    Abstract: An apparatus comprises a plurality of two or more reaction chambers, each having a different compound therein comprising a solid reactant adsorbent and a gaseous reactant adsorbed thereon, each of said compounds having a different gaseous refrigerant vapor pressure, substantially independent of the concentration of the gaseous reactant, and having an ascending order of gaseous reactant vapor pressure wherein the adsorption temperature of a lower vapor pressure compound at adsorption temperature of a lower vapor pressure compound at adsorption pressure is at least 8.degree..degree.C.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: November 23, 1993
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Lance D. Kirol
  • Patent number: 5241831
    Abstract: An improved apparatus for staging solid-vapor complex compounds comprises heat exchange means for transferring heat from super-heated refrigerant vapor from a desorbing reactor to cooled refrigerant vapor directed to an adsorbing reactor. In another embodiment a liquid subcooler is used to cool liquid refrigerant passing from a condenser to an evaporator with cold refrigerant gas directed to an adsorbing reactor from the evaporator.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: September 7, 1993
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Lance D. Kirol
  • Patent number: 5186020
    Abstract: A portable cooling apparatus comprising a thermally insulated container having a cooling chamber therein, a lid providing access to the chamber, an evaporator including a heat exchange surface exposed in the cooling chamber, a reactor assembly secured adjacent the container comprising one or more reactors containing an ammoniated complex compound or coordinative complex compound of other suitable polar refrigerant, heating means for heating the complex compound, and a valved conduit for directing refrigerant between the reactor and the evaporator assembly. In another embodiment, the cooling apparatus comprises an inside reactor assembly, replacing the evaporator, and an outside reactor assembly each assembly containing a different complex compound.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: February 16, 1993
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Lance D. Kirol
  • Patent number: 5186009
    Abstract: An improved absorption cycle apparatus and system using aqueous solutions of metal salts selected from the group consisting of alkali metal hydroxides, nitrites, and alkaline earth and transition metal hydroxides, halides, thiocyanates, and mixtures thereof between about 14% and about 30%, by weight, of said metal salt, of an organic compound selected from the group consisting of alcohols, glycerol, glycols, polyglycols, alkaline glycol ethers, aliphatic amines and alkanol amines.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: February 16, 1993
    Assignee: Gas Research Institute
    Inventor: Uwe Rockenfeller
  • Patent number: 5165247
    Abstract: The invention disclosed herein relates to an apparatus for being detachably connected to a chemical or refrigeration system for selectively receiving and dispensing a gaseous refrigerant or chemical from and to that system, respectively, including a vessel having a chamber capable of maintaining a pressurized gas therein, gas inlet means for directing the gas to and from the chamber, and connection means for connecting the gas inlet to a refrigeration or chemical system; a plurality of heat exchange conduits exposed in the chamber for directing heat exchange fluid therethrough and fluid inlet and outlet means communicating exteriorly of the vessel for directing the fluid to and from the conduits, respectively; and a solid adsorbent capable of alternately adsorbing and desorbing the gaseous refrigerant or chemical and positioned in thermal communication with each of the heat exchange conduits.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: November 24, 1992
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Lance D. Kirol
  • Patent number: 5161389
    Abstract: An apparatus capable of rapidly cooling or freezing a composition comprising a walled housing member having a cooling chamber and a door for accessing the cooling chamber from the exterior of the housing, an evaporator and a blower for circulating cold air from the evaporator to the cooling chamber, first and second reactors each containing a complex compound consisting of a metal salt and ammonia adsorbed thereon, heaters in the reactors for heating the complex compound, and valves and conduits for directing ammonia from the evaporator to the reactors, from the reactors to the condenser, and from the condenser to the evaporator, and control means for sequentially operating the heaters for alternately heating the complex compounds in the reactors, operating the air handling means and one or more of the valves, and switching means for turning the apparatus on and off.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: November 10, 1992
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Lance D. Kirol
  • Patent number: 5079928
    Abstract: A method of transferring and recovering energy comprises placing in different reactors two or more different solid adsorbents having a gaseous reactant adsorbed thereon and each having a different gaseous reactant vapor pressure, in a first reaction cycle, pressurizing a first portion of the reactors at a first pressure to desorb the gaseous reactant in an endothermic reaction, and pressurizing a second portion of the reactors at a second pressure to adsorb the gaseous reactant in an exothermic reaction, and in a second reaction cycle, pressurizing the first portion of the reactors at the second pressure to adsorb the gaseous reactant in an exothermic reaction, and pressurizing the second portion of the reactors at the first pressure to desorb the gaseous reactant in an endothermic reaction, and directing at least a portion of the heat released during the exothermic reactions or at least a portion of heat adsorbed during the endothermic reactions to heat exchange means for energy recovery.
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: January 14, 1992
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Lance D. Kirol
  • Patent number: RE34259
    Abstract: An improved heat exchange system incorporates the cooling created by using a metal salt/ammonia ligand complex compound which is alternately heated and cooled to alternately desorb and adsorb, respectively, the ammonia creating useful cooling or refrigeration in the temperature range of between -65.degree. C. to 15.degree. C.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: May 25, 1993
    Assignee: Rocky Research
    Inventor: Uwe Rockenfeller
  • Patent number: RE34542
    Abstract: A system for storing chemical energy comprises first and second vessels, the first containing a liquid solution of an alkali or alkaline earth metal hydroxide, halide, or thiocyanate, or ammonium halide or thiocynate at an initial concentration of between about 30% to abotu 80%, by weight, the second vessel containing liquid, a space about the liquid in each vessel and a conduit communicating between the spaces having a valve for selectively allowing liquid vapor to pass between the spaces, means for heating the solution to a temperature above about 80.degree. F., means for cooling the liquid to a temperature below about 55.degree. F., and heat exchange means for transferring heat from the heated solution and for transferring heat to the cooled liquid. Water is the preferred liquid although ammonia, lower alcohols, and polyols such as glycerol, glycols, polyglycols, glycol ethers, lower aliphatic amines and alkanol amines, and mixtures thereof, may be used.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: February 15, 1994
    Assignee: Rocky Research
    Inventor: Uwe Rockenfeller