F - Mech Eng,Light,Heat,Weapons – 24 – D
Patent
F - Mech Eng,Light,Heat,Weapons
24
D
257/30
F24D 17/00 (2006.01) F24D 17/02 (2006.01) F24H 1/20 (2006.01) F24H 4/04 (2006.01)
Patent
CA 1130274
m18.1.80 1 PHD.79-015 "ABSTRACT": "Waste water tank". In a waste water tank comprising inlet and outlet ducts which open into the bottom of the tank, the ducts are enlarged, at a short distance before the inlet and outlet apertures, and are interconnected by a parallel duct, so that the upwards and downwards forces prevail. It is thus achieved that no colder but only warmer water can penetrate into the tank.
345703
Hermann Wilhelm
Kersten Reinhard
Klinkenberg Klaus
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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