Abstract An electrically heated steam generator is provided with a heating chamber having a water inlet and a steam outlet. A water reservoir is connected to the water inlet by a capillary conduit of polytetraflouroethylene (Teflon) whereby water is supplied to the chamber at a controlled rate consistent with the rate of steam discharge through the outlet. A pair of spaced electrodes are suspended within the heating chamber for heating the water therein. The capillary conduit has a bore of a maximum diameter of substantially 1/8 inch and a length corresponding to a minimum resistance on the order of 105 ohms in the column of water within the bore, whereby leakage current between the heating chamber and reservoir is reduced to about 1 m A or less with a supply voltage of 110 V. applied to the electrodes.
Inventors
👤 N Camp
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-31 04:51
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/28; F22B1/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
99 words
A steam generator comprising a heating chamber with an inlet and an outlet, a reservoir, a capillary conduit of polytetrafluoroethylene extending from said reservoir to said inlet for supplying water to said chamber at a controlled rate consistent with the rate of steam discharge through said outlet, and electrode means in said chamber connectable to a source of current for vaporizing the water therein, said conduit having a bore of a maximum diameter of substantially 1/8 inch and a length corresponding to a minimum resistance on the order of 105 ohms in a column of water within said bore.
Claim 2
Dependent Claim
99 words
A steam generator comprising a heating chamber with an inlet and an outlet, a reservoir, a capillary conduit of polytetrafluoroethylene extending from said reservoir to said inlet for supplying water to said chamber at a controlled rate consistent with the rate of steam discharge through said outlet, and electrode means in said chamber connectable to a source of current for vaporizing the water therein, said conduit having a bore of a maximum diameter of substantially 1/8 inch and a length corresponding to a minimum resistance on the order of 105 ohms in a column of water within said bore.
Claim 3
Dependent Claim
34 words
A steam generator as defined in claim 1 wherein said boiling chamber is an upward vessel of dielectric material, said electrode means being a pair of conductors suspended from the top of said vessel.
Claim 4
Dependent Claim
25 words
A steam generator as defined in claim 2 wherein said pair of conductors have curved lower ends terminating in nested, spaced-apart relationship above said inlet.