Patents for F28D 21 - Heat-exchange apparatus not covered by any of the groups (2,512)
09/1991
09/10/1991US5046481 Heating apparatus
08/1991
08/28/1991EP0443440A1 Channel for purging combustion gases of a boiler installation
08/08/1991WO1991011671A1 Heat exchanger for aggressive gaseous media
08/08/1991DE4009664A1 Waermetauscher fuer aggressive, gasfoermige medien Heat exchanger for aggressive media gasfoermige
07/1991
07/17/1991EP0437059A2 Steam reforming
07/09/1991CA2032782A1 Steam reforming
06/1991
06/04/1991US5020335 Air conditioning
04/1991
04/09/1991US5005285 Method of producing an aluminum heat exchanger
03/1991
03/28/1991DE3931117A1 Recovering heat and dust from hot waste gases - by thermodynamic action on liq. layer
03/06/1991EP0414769A1 Heat exchanger connected to a water discharge conduit.
02/1991
02/14/1991DE3926283A1 Heat exchanger with reduced flow resistance - has rounded inlets and outlets to internal chambers to reduce flow resistance
02/06/1991EP0411112A1 Heat exchanger.
01/1991
01/16/1991CN1048593A Inorganic medium heat conducting element
01/08/1991US4982782 Method and apparatus for simultaneous heat and mass transfer
01/03/1991DE3919544A1 Bath tub for shower-bath - has floor supported on ribs which extend above cold water inlet pipe coil
12/1990
12/31/1990WO1991000141A1 Process and device for the simultaneous transfer of material and heat
12/20/1990DE3919543A1 Shower with heat exchanger and through-flow heater - has waste water heating inlet, and heat control from inlet to shower desired temp. difference
08/1990
08/28/1990US4951738 Method and apparatus for recovering heat energy from polluted water
08/23/1990WO1990009555A1 Heat exchanger
08/23/1990DE3905140A1 Waermetauscher Heat Exchanger
07/1990
07/10/1990CA1271380A1 Heat recovery unit for forced air heating systems
06/1990
06/13/1990DE3911276C1 Device for recovering (reclaiming) heat from the exhaust gases of firing units (installations, systems)
05/1990
05/29/1990US4928751 Computer controlled waste heat reclaimer
04/1990
04/12/1990DE3834519A1 Method and apparatus for wrapping piece goods with shrink foil
04/04/1990CN2055585U Ceramic heat exchanger with integral intersected structure of corrugated plate and tubes
02/1990
02/27/1990US4903754 Method and apparatus for the transmission heat to or from plate like object
02/20/1990US4901789 For extracting heat from hot exhaust gases/transferring to a fluid
02/13/1990CA1265784A1 Method and apparatus for recovering heat from gases containing substances which contaminate heat transfer surfaces
02/01/1990DE3932871A1 Heat recovery device for shower bath - has horizontal discharge pipe for warm waste water in path of entering cold water
02/01/1990DE3923511A1 Heat exchanger for shower bath basin - has header tubes containing axially moving resilient flow distributor with flanges connected by support
12/1989
12/20/1989EP0346803A1 Method and device for removing soot and condensable components from diesel exhaust gases
12/19/1989US4887586 Heat recovery apparatus
11/1989
11/21/1989US4881495 Device for vaporizing a cryogenic fluid
11/02/1989WO1989010526A1 A three-stage gas heat-exchanger with intermediate cooling
11/02/1989WO1989010521A1 Heat exchanger connected to a water discharge conduit
10/1989
10/17/1989US4873835 Process for the simultaneous exchange of heat and matter through a porous wall
09/1989
09/27/1989EP0333739A1 Convector heating apparatus.
09/26/1989CA1260341A1 Process and device for recovery of thermal energy in a steam generating system
09/08/1989WO1989008226A1 Instantaneous regenerative siphon heater
08/1989
08/08/1989US4854381 Heat exchanger device
06/1989
06/22/1989DE3840534A1 Shower installation
06/07/1989EP0319392A1 Heat recovery apparatus
06/07/1989EP0318641A2 Process and device for the transmission of thermal energy to or from a plate-like substrate
05/1989
05/23/1989US4832115 Method and apparatus for simultaneous heat and mass transfer
04/1989
04/18/1989US4821793 Tub and shower floor heat exchanger
04/18/1989US4821428 Heat exchanger for grain elevators or bins
04/05/1989EP0309846A1 Vertical isothermal exchanger with a cylindrical ferrule for heating air under pressure in counter-flow with fumes
03/1989
03/29/1989EP0308567A1 Apparatus for evaporating cryogenic fluid
03/14/1989CA1251030A1 Device for assembling return bend to coil
02/1989
02/14/1989US4804039 Process and apparatus for alternately heating and cooling a heat exchanger
01/1989
01/26/1989DE3823955A1 Method for recovering heat from the waste gases of a burner-heated heating appliance and device for carrying out this method
11/1988
11/24/1988DE3714879A1 Apparatus for utilising waste-gas heat
11/10/1988DE3818273A1 Tank for collecting bathing waste water and intended for recovering the heat from hot bath and shower waste water
10/1988
10/11/1988US4776391 Heat exchanger method and apparatus
09/1988
09/28/1988EP0284342A1 Heat regenerators
09/13/1988US4770828 Inserting plastic tubes to form channels, removal
09/06/1988US4768586 Ceramic heat exchangers
07/1988
07/27/1988EP0276176A1 Process for the simultaneous exchange of heat and material through a porous barrier
07/20/1988EP0275237A2 Shower apparatus
07/06/1988EP0202234B1 Heat recovery system including a dual pressure turbine
06/1988
06/21/1988US4751823 Control arrangement affecting operation, safety and efficiency of a heat recovery system
06/14/1988US4750550 Method for the transfer of heat energy
06/02/1988WO1988004014A1 Convector heating apparatus
05/1988
05/10/1988US4742865 Method of controlling an energy recovery system
04/1988
04/19/1988CA1235412A1 Recuperator of flue gas heat
04/06/1988EP0262274A1 Recuperator of heat from flue gases from different furnaces capable of cleaning these gases
03/1988
03/09/1988EP0258979A1 Apparatus for simultaneous heat and mass transfer
03/08/1988CA1233813A1 Cogeneration from glass furnace waste heat recovery
03/08/1988CA1233812A1 Waste heat recovery from regenerative furnaces
01/1988
01/12/1988US4718482 Fins for automobile or home air conditioners; surface treated aluminum
12/1987
12/17/1987DE3717720A1 Heat exchanger for recovery of shower waste water heat
12/08/1987US4711298 Heat exchangers molded from refractory material
11/1987
11/24/1987US4708722 Air washer and heat exchanger
11/17/1987US4706884 Hot air heating system
11/10/1987US4705101 Flue gas reheat apparatus
10/1987
10/27/1987US4702818 Process for recovering heat of a tar-containing high-temperature gas
10/27/1987US4702179 Controlled coal burning and heat collecting method and apparatus
10/15/1987DE3612328A1 Gas stove
10/14/1987EP0241049A1 A dual pressure turbine
10/13/1987US4699317 Heat exchanger flue
09/1987
09/16/1987EP0236607A1 Heat recovery apparatus and heat recovery method
09/08/1987CA1226494A1 Heat exchanger for extracorporeal circuit
09/01/1987US4690208 Contaminated fluid heat exchanging
08/1987
08/18/1987CA1225517A1 Process for producing building components with complexly configured walls
08/11/1987US4685507 Process for the staged heating of a material in a treatment apparatus and subsequent cooling thereof
08/05/1987EP0230982A2 Cylindrical heat exchanger manufactured from prefabricated components, in particular a chimney recuperator
08/04/1987US4683649 Device for assembling return bend to coil
07/1987
07/21/1987US4681744 Heat recovery device
07/21/1987US4681257 Hot-water-furnace supplemental heater
07/08/1987CN86202182U Integral floating bed type organic exhausted gas catalystical burning purifying device
07/02/1987DE3545423A1 Discharge-line portion with a heat exchanger
06/1987
06/30/1987US4676007 Heat exchanger for grain elevators or bins
06/16/1987CA1222940A1 Process and apparatus for a recovery of heat comprising a heat-recovering absorption of water vapor from gases
06/02/1987US4669530 Heat exchanger method and apparatus
05/1987
05/26/1987US4667733 Protective device for heat exchangers placed in a duct for smoke filled with fine particles of ash
05/12/1987US4664180 Heat recovery unit for stoves
05/07/1987DE3633321A1 Shower installation for utilising heat from waste water
04/1987
04/28/1987CA1221039A1 Exhaust gas treatment method and apparatus
04/23/1987DE3626483A1 Chimney renewal insert
04/16/1987DE3536769A1 Method and device for utilising exhaust heat from exhaust air extracted from rooms to be heated
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