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Patent applications and USPTO patent grants for Projectus Industriprodukter AB.The latest application filed is for "method for thermal running of a heat pump plant and plant for carrying out the method".
Patent | Date |
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Method for thermal running of a heat pump plant and plant for carrying out the method Grant 4,033,141 - Gustafsson July 5, 1 | 1977-07-05 |
Method of and an installation for controlling the temperature of a plurality of rooms having mutually differing and varying heating requirements, among which rooms there is normally a cooling requirement Grant 4,024,728 - Gustafsson May 24, 1 | 1977-05-24 |
Apparatus for defrosting of an evaporator in a heat pump Grant 4,007,603 - Gustafsson February 15, 1 | 1977-02-15 |
Heating installation comprising a heat pump and a fuel-fired boiler with a radiator circuit Grant 3,986,664 - Gustafsson October 19, 1 | 1976-10-19 |
Heat pump system Grant 3,984,050 - Gustafsson October 5, 1 | 1976-10-05 |
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