Patents
Sitemap › F28 - Heat exchange in general › F28D - Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact; Heat storage plants or apparatus in general › F28D 21 - Heat-exchange apparatus not covered by any of the groups
Patents for F28D 21 - Heat-exchange apparatus not covered by any of the groups (2,512)
12/1982
12/23/1982WO1982004474A1 Process and device for producing domestic hot water from the heat power wasted in cooling down vehicle engines
12/21/1982US4364514 Heat-recovering apparatus for furnaces
12/14/1982US4363442 Heater using hot waste flue gases
12/08/1982EP0066416A1 Heat exchange method and apparatus
12/08/1982EP0066354A1 Heat recovery process and apparatus
11/1982
11/30/1982CA1136492A1 Heat exchanger
11/16/1982US4359187 Energy recovery system
10/1982
10/27/1982EP0063195A2 Exhaust gas treatment method and apparatus
10/19/1982CA1133891A1 Modular panel heater having improved holder devices
10/19/1982CA1133890A1 Heat reclaiming system
10/13/1982EP0062518A2 Heat exchangers
10/05/1982US4352391 Method and apparatus for recovering heat in waste water
10/05/1982US4352273 Fluid conditioning apparatus and system
09/1982
09/28/1982US4351276 Heat recovery device for boilers
09/15/1982EP0059898A2 Method for using a hot water central heating system with a separated flue gas heat exchanger
09/01/1982EP0058842A1 Heat exchanger with exhaust gas heat supply
08/1982
08/31/1982US4346759 Heat reclaiming system
08/31/1982US4346674 Economizer with soot blower
08/25/1982EP0058636A1 Apparatus for recovery of heat from waste water and method of its operation
08/24/1982CA1130274A1 Waste water tank
08/19/1982WO1982002740A1 Method for increasing the flow density of heat exchangers traversed at a high speed by a least one gaz,and heat exchanger device for implementing such method
08/11/1982EP0048724A4 Aggregate mass air circulation and structural support system for generally enclosed structures.
08/04/1982EP0057095A2 Protection of parts exposed to flue gas
08/03/1982US4342359 Universal flue stack heat exchanger
07/1982
07/28/1982EP0056794A2 Apparatus for the recuperation of heat from exhaust gases of a heating installation
07/28/1982EP0056670A2 Assembly comprising a heat recovery device
07/27/1982US4341263 Waste water heat recovery apparatus
07/20/1982US4340572 Process for recovering heat from stack or flue gas
07/12/1982EP0035994A4 Heat recovery system.
07/06/1982US4337585 Heat recovery and air preheating apparatus for textile dryer ovens
06/1982
06/29/1982US4336836 Heat reclaimer
06/23/1982EP0054050A1 Method and device for controlled heat transmission from a primary steam circuit to a heat consumer.
06/09/1982EP0053403A1 Ventilation and heating device for single rooms or the like
05/1982
05/25/1982US4331199 Apparatus for recovering energy from a heating installation
05/25/1982CA1124072A1 Fluid conditioning apparatus and system
05/05/1982EP0051036A1 Surface heat exchanger for the recuperation of heat
05/04/1982US4327670 Waste heat recovery unit
05/04/1982CA1122970A1 Heat recuperating water heating system
04/1982
04/20/1982US4325430 Heat recapture device
04/07/1982EP0048724A1 Aggregate mass air circulation and structural support system for generally enclosed structures
04/01/1982WO1982001059A1 Method and apparatus for heat recovery
04/01/1982WO1982000959A1 A method and an apparatus for the treatment of a contaminated gas of elevated temperature
03/1982
03/24/1982EP0048235A2 Method and apparatus for heat recovery
03/24/1982EP0048233A2 A method and an apparatus for the treatment of a contaminated gas of elevated temperature
03/09/1982US4318367 Energy recovery device
03/09/1982CA1119393A1 Tube extracting mechanism
03/03/1982EP0046528A1 Heat-engineering apparatus for carrying out thermo-dynamical processes comprising a pair of mutually opposite phase transitions of a work medium
03/03/1982EP0046476A1 Method for the recuperation of waste heat and apparatus for carrying out the method
02/1982
02/23/1982CA1118765A2 Heat exchange apparatus utilizing thermal siphon pipes
02/09/1982US4314601 Heat exchange system for recycling waste heat
02/02/1982US4313562 Flue heat ventilator
02/02/1982US4313491 Coiled heat exchanger
01/1982
01/19/1982CA1116484A1 Flue heat exchanger
01/12/1982US4310303 Plug-in recuperator and method
01/05/1982US4308990 Flue gas heat recovery system
01/05/1982CA1115513A1 Apparatus for aligning an inspection or repair device with a selected tube in a heat exchanger
12/1981
12/24/1981WO1981003680A1 Method and device for controlled heat transmission from a primary steam circuit to a heat consumer
12/23/1981EP0042129A2 Heat exchanger for flue gases
12/22/1981CA1114805A1 Heat exchanger having a reduced tendency of formation of air pockets
12/15/1981US4305454 Heat exchanger with recirculation
12/10/1981WO1981003539A1 Heat transference unit
12/09/1981EP0041091A1 Stack exhaust heat recycling system
12/08/1981US4304292 Shower
12/01/1981US4303122 Flue heat recovery device
11/1981
11/18/1981EP0040162A1 Stack-enveloping device, apparatus comprising such a device and method of assembling it
11/18/1981EP0040037A1 A heat exchange unit
11/17/1981US4300247 Energy conservation in shower bathing
11/04/1981EP0039291A1 Plate heat exchanger constituted by modular elements built up into stacks composed of two rectangular identical plates and a full sheet
11/03/1981CA1111834A2 Energy conserving process furnace system and components thereof
10/1981
10/20/1981US4295519 Heat reclaimer
10/06/1981US4293094 Supplemental heating system
10/06/1981CA1110129A1 Preheating unit for domestic hot water supply
10/01/1981WO1981002779A1 Aggregate mass air circulation and structural support system for generally enclosed structures
09/1981
09/30/1981EP0036565A1 Waste-heat recovery apparatus for boilers
09/29/1981US4291423 Heat reclamation for shower baths, sinks, and other fluid receiving vessels
09/23/1981EP0035994A1 Heat recovery system.
09/22/1981CA1109347A1 Heat recovery system for furnaces and the like
09/16/1981EP0035617A2 A heat exchanger and a heat reclaiming system including such a heat exchanger
09/15/1981CA1109057A1 Heat-and-moisture exchanger
09/15/1981CA1108852A1 Waste heat recovery process
09/08/1981US4287938 Method for exchanging heat and a device for carrying out said method
09/01/1981US4286975 Chimney heat exchanger
09/01/1981US4286528 Exhaust filter system
08/1981
08/25/1981CA1107702A1 Heating unit for hot water room heating systems
08/25/1981CA1107593A1 Heat recuperating system for heating apparatus
08/18/1981US4284421 Air-cleaning apparatus
08/05/1981EP0033229A2 Heat exchange apparatus
07/1981
07/28/1981US4280555 Heat exchanger for exhaust outlet of a room heating unit
07/28/1981CA1105908A1 Carpet cleaning systems
07/28/1981CA1105789A1 High efficiency heating system
07/14/1981US4278126 Heat exchanger for furnace flue
07/07/1981US4276929 Heat exchanger
07/07/1981US4276926 Stove pipe heater
07/07/1981CA1104556A1 Heat exchanger
06/1981
06/30/1981US4275687 Preheating unit for domestic hot water supply
06/23/1981US4274845 Kitchen exhaust of restaurant
06/09/1981CA1102786A1 Heat extractor
06/09/1981CA1102644A1 Heat exchange method and device therefor for thermal energy storage
05/1981
05/19/1981US4267884 Heat recovery device for use in return air duct of forced air furnace for recovering heat from the flue of such furnace
05/12/1981US4266602 Heat exchanger for cooling electrical power apparatus
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