Fluid handling – Liquid level responsive or maintaining systems – By float controlled valve
Patent
1984-07-16
1985-06-25
Walton, George L.
Fluid handling
Liquid level responsive or maintaining systems
By float controlled valve
4538, 4661, F16K 3118, F16K 3300
Patent
active
045247986
ABSTRACT:
A safety valve for automatically stopping the flow of a fluid brought by a conduit into a reservoir when the level of fluid in the reservoir reaches a maximum predetermined height. This valve is of the type comprising an obturation plate pivotally mounted in a housing provided in the supply conduit proximate the outlet of the conduit, and a control device including a float mounted at the end of a rod arranged to rock the obturation plate from an open position where it allows the fluid to flow freely to a closed position where it obturates the conduit to thereby stop the flow of fluid and consequently its arrival into the reservoir when the level of the fluid has reached the predetermined maximum level aforesaid. The pivot on which the obturation plate is mounted is provided on the outside of the housing and of the supply conduit, and is preferably made up of two aligned stub axles respectively seating into two small bearings made solid with two opposed external surfaces of the housing of the obturation plate. Preferably, the control device acts on the obturation plate to rock it through a lever comprising a stirrup of which the two ends are rigidly secured to the two pivot stub axles. This safety valve, which is a structure of which the maintenance is extremely easy, is particularly useful at the end of a supply spout of a bathtub to avoid that the latter inadvertently overflows.
REFERENCES:
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patent: 1233654 (1917-07-01), Dziatkiewicz
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patent: 1765078 (1930-06-01), Khun
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patent: 2504450 (1950-04-01), Rhodes
patent: 2507545 (1950-05-01), Samiran
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