Patent
Automatic controlling apparatus for a domestic water supply system
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TLDR
In this paper, an automatic controlling apparatus for a domestic water supply system having a detecting and impulse fitting (10) for determining water flow, and a shutoff valve (20) of electromagnetic type which is connected with said fitting to constitute an integral unit, also unions (13, 23) for connection to the water conduit is described.Abstract:
1. Automatic controlling apparatus for a domestic water supply system having the following features : - it has a detecting and impulse fitting (10) for determining water flow, and a shutoff valve (20) of electromagnetic type which is connected with said fitting to constitute an integral unit, also unions (13, 23) for connection to the water conduit ; - an adjustable timing relay (4) is connected electrically to the detecting and impulse fitting (10) and to the shutoff valve (20) ; - a stub pipe (101) of the detecting and impulse fitting accommodates a magnetic floating element (107) which is held by influence of forces on an inlet aperture (102) and is lifted off by the pressure of the throughflowing water, and in the lifted-off position it actuates a magnetic switch (103) arranged externally on the stub pipe (101) ; characterised by the following features : - the stub pipe (101) of the detecting and impulse fitting (10) is of rectilinear construction and is connected to the shutoff valve (20) in a rectilinear arrangement ; - there is fixedly arranged in the stub pipe (101) concentrically and with spacing from the pipe wall, adjoining the inlet aperture (102), a sleeve (104) wherein the cylindrically constructed magnetic floating element (107) is displaceably accommodated ; - a counter-magnet (106) is fixedly arranged at that end of the sleeve which is remote from the inlet aperture (102) ; - provided in the sleeve wall are throughflow apertures (105) which are at least partly unmasked by the lifted-off floating element, and the magnetic circuit (108) of the floating element actuates the magnetic switch (103).read more
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References
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Patent
Valve position indicator
TL;DR: In this article, a means for remotely indicating when a fluid valve element is in its open or closed positions is described, which comprises a reed switch arranged in near association to a magnet operator connected to the valve element.
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Water shutoff system
TL;DR: Water supply line to the home has a water flow sensor therein and a valve therein. When water flow is sensed, the valve is turned off, as when a leak occurs as discussed by the authors, such as a burst pipe or leaky hot water heater, or may be caused by a disaster such as an earthquake.