1
Klaus H Hemsath: Gas fired radiant tube heater. Indugas, Body Vickers & Daniels, January 21, 1992: US05082055 (251 worldwide citation)

An in situ thermal system is disclosed for enhanced oil recovery and the like from a subterranean formation. The system pressurizes the formation with water whereupon the entire formation is heated to relatively high temperatures in the absence of gas formation to significantly decrease the viscosit ...


2
Klaus H Hemsath: Enhanced oil recovery system with a radiant tube heater. Indugas, Body Vickers & Daniels, June 4, 1991: US05020596 (232 worldwide citation)

An in situ thermal system is disclosed for enhanced oil recovery and the like from a subterranean formation. The system pressurizes the formation with water whereupon the entire formation is heated to relatively high temperatures in the absence of gas formation to significantly decrease the viscosit ...


3
Klaus H Hemsath: In situ thermal waste disposal system. Indugas, Body Vickers & Daniels, April 3, 1990: US04913065 (226 worldwide citation)

An in situ system for thermally cleansing hazardous and toxic waste disposal sites is disclosed. The system includes a perimeter wall extending into the site which is sealed to a roof structure surrounding the site to encapsulate the site. A plurality of tubes are sunk into the encapsulated site in ...


4
Klaus Heinrich Hemsath, Arvind Chhotalal Thekdi, Rodney G Whitbeck, Mark George Shapona, Ronald Scott Lucas, Claude Melvin Mack: Thermal treating apparatus and process. Ford Motor Company, Indugas, Pauley Petersen Kinne & Fejer, December 7, 1999: US05997286 (36 worldwide citation)

A thermal treating apparatus and process providing convection thermal transfer for elevated processing temperatures and chemical treatment. A recirculation plenum for passage of spent treatment fluid from and fresh treatment fluid to a treatment chamber may contain a thermal control source, a chemic ...


5
Klaus H Hemsath: Gas fired radiant tube heater. Indugas, Body Vickers & Daniels, July 6, 1993: US05224542 (14 worldwide citation)

A radiant tube heater is provided for a gas fired burner which fires heated products of combustion into an inner longitudinally-extending tube which is concentrically pinned to an outer longitudinally-extending tube which in turn is concentrically mounted within a heat transfer, tube which radiates ...


6
Klaus H Hemsath: Pulse burner and method of operation. Indugas, Body Vickers & Daniels, September 25, 1990: US04959009 (14 worldwide citation)

A hybrid burner system is disclosed which incorporates features of continuous burners and pulse combustion devices. A combustion chamber is fitted with one-way air inlet valves, a restricted or one-way exhaust outlet valve and a pressurized, gas inlet which is externally actuated in a periodic manne ...


7
Horst Simon: Device for the acoustic damping of a radiant-heating tube for an industrial furnace. Ludwig Ofag Indugas Industrieofenanlagen, Karl F Ross, February 20, 1979: US04140482 (10 worldwide citation)

A fuel-fired radiant-heating tube for an industrial furnace is provided, at its fuel-feed end externally of the furnace, with an acoustic damper or muffler which comprises a double-wall housing defining two elongated annular flow passages in indirect heat-exchanging relationship through a thermally ...


8
Klaus H Hemsath: Hybrid combustion device and system therefor. Indugas, Body Vickers & Daniels, February 25, 1992: US05090891 (9 worldwide citation)

A hybrid burner system is disclosed which incorporates features of continuous burners and pulse combustion devices. A combustion chamber is fitted with one-way air inlet valves, an orificed or small sized exhaust outlet valve and a pressurized, gas inlet which is externally actuated in a periodic ma ...


9
Klaus H Hemsath: Gas fired particulate melting apparatus and method. Indugas, Harold F Mensing, November 1, 1988: US04781171 (9 worldwide citation)

A liquid fuel fired apparatus and method for the efficient distribution and utilization of heat in the melting of a particulate feedstock. The feedstock is preheated to an incipient softening point temperature in a vertically disposed shaft. The column of feedstock in the shaft is supported on the t ...


10
Baesch Viktor: Method of making an electromagnetic-sheet stack. Ludwig Ofag Indugas Industrieanlagen, Ross Karl F, Dubno Herbert, June 25, 1974: US3819427 (9 worldwide citation)

A plurality of identical ferromagnetic sheets are stamped or punched from a larger sheet of silicon-alloy steel. A finely divided powder of an inert bond inhibitor and spacer is mixed with the oil applied to the sheets during the stamping operation, or is applied to the sheets before or after stampi ...



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