Patents for F24D 11 - Central heating systems using heat accumulated in storage masses (2,832)
06/1977
06/28/1977US4031952 Heat energy accumulator
06/28/1977US4031879 Solar energy conversion plant
06/14/1977US4029258 Solar energy collector
06/14/1977US4028854 Fireproof modular building
05/1977
05/24/1977US4025043 Fireplace heating system
04/1977
04/19/1977US4018581 Solar heating system
03/1977
03/08/1977US4010734 Closed system solar heater
02/1977
02/08/1977US4006856 Arrangement for utilizing solar energy for heating buildings
02/01/1977US4005583 Combination heat pump and low temperature solar heat collector
01/1977
01/04/1977US4000851 Solar-heated dwelling
12/1976
12/21/1976US3998267 Temperature control system
12/14/1976US3996749 Method and plants for producing, storing, modulating and distributing energy
12/07/1976US3995446 Reverse air cycle air conditioner
11/1976
11/30/1976US3994276 Method of solar heating so as to reduce oil and gas consumption
11/23/1976US3993121 Heat pump conversion system for electric furnace
11/16/1976US3992607 Electrically heated hot water system
11/16/1976US3991938 Combination heat pump and low temperature solar heat absorber
10/1976
10/26/1976US3987786 Method and apparatus for collecting, storing and transmitting solar heat
10/19/1976US3986489 Solar energy transfer system with protection against freezing
10/19/1976US3986344 Method and means for reclaiming heat from a sewage disposal system
10/05/1976US3983929 Heat or cold and dry storage
09/1976
09/14/1976US3980130 Heat, cold and dry storage
08/1976
08/17/1976US3975620 Control system for charging and discharging an electric storage heater
08/10/1976US3973552 Method of storing and releasing thermal energy
06/1976
06/01/1976US3960322 Solar heat pump
06/01/1976US3960136 Solar energy collection system
06/01/1976US3959986 Heat-pump system for hot-water room-heating
05/1976
05/25/1976US3958755 Hydro-thermo fireplace and heating system therefor
05/18/1976US3958101 Space heating using off-peak electric heat storage
05/04/1976US3953973 Heat engine and heat pump utilizing a working medium undergoing solidification and melting operations
01/1976
01/13/1976US3931851 Liquid aquifer energy storage method
01/13/1976US3931806 Method and apparatus for storing a medium heated by solar energy
1 ... 19 20 21 22 23 24 25 26 27 28 29