Abstract: An improved flushing device is disclosed for use in tanks such as are used for flushing toilets. The flushing device has an inlet means including an improved two-stage valve which uses inlet line pressure in operating each of the two stages. A float is movably mounted on an inlet fixture for use in controlling the tank filling operation with a lever operatively coupling the float to the first stage of the valve. A vertical hollow overflow tube including a bowl filling aperture cooperates with a liquid operated variable buoyancy means on the float and alternatively a tube connects the inlet means with an overflow tube.

Abstract: The device is especially intended for a pipe supplying a fluid which must be supplied, simultaneously or alternately, with another fluid. The device comprises a tank for a control fluid which surrounds the vertical supply pipe and in which a permanent magnet moves in accordance with the amount of control fluid contained in the tank. The magnet shifts a valve member inside the supply pipe so that the valve member closes the latter in one of the end positions of the magnet. The magnet is rigid with a float which freely extends around the supply pipe. The device can in particular ensure that fuel is supplied to an engine only if oil is supplied to the latter.

Abstract: A ballcock assembly adaptable for use in a variety of sizes and type of toilet flush tanks. The ballcock assembly comprises a standpipe having a ballcock valve at its upper end and having an adjustable height mechanism for varying the height of the ballcock valve in a toilet flush tank. The ballcock valve is a positive closing valve which includes a valve element movable to an open position against the pressure of the supply water by means of a valve actuating member that is pivotally connected to the standpipe and that is also connected to a float unit which surrounds the standpipe unit. The standpipe includes a hush tube which conveys water to the bottom of the toilet flush tank. The hush tube carries water distribution control means which functions to control the proportion of water delivered to the toilet flush tank and to the bowl refill.

Abstract: A main valve diaphragm closes the liquid inlet to the tank when the latter is full because ballast members associated with a pilot valve have their gravitational effects negated as a result of liquid in the tank being above or at substantially the same level as such members, thereby allowing the buoyancy of a float to maintain the pilot valve closed. On the other hand, when the liquid in the tank drops to a predetermined level, the ballast members become effective to gravitationally operate the pilot valve which in turn releases hydraulic pressure in a chamber above the diaphragm that otherwise keeps the diaphragm seated.

Abstract: An essentially closed hollow body of the float receives liquid in a lower portion for ballast and air in an upper portion for floatation with a vertical guide sleeve therethrough being offset at one side of the hollow interior slightly spaced inwardly of a part of the body sidewall. A liquid and air flow opening is formed through the body sidewall part horizontally centered relative to the guide sleeve so that flow paths are created segregated approximately one half around either side of the guide sleeve. By arcuately forming the body interior and the guide sleeve, not only are the flow paths smoothly arcuate, but the circuitous nature thereof muffles echoing sounds created within the hollow body from passing outwardly of the body through the flow opening.

Abstract: An automatic stop valve mounted in a liquid supply port of a container to be supplied with pressurized liquid, which valve ensures that liquid supply is automatically and instantaneously stopped when the liquid surface reaches a predetermined level. The valve comprises a hollow valve body with at least one liquid supply port formed at one end and one or more liquid discharge ports formed in the vicinity of the other end, a valve cylinder loosely engaged with the valve body and adapted to be movable axially of the valve body as the level of the pressurized liquid supplied into the container rises and a valve release mechanism for opening the valve by pressing the valve cylinder downwardly. The valve body has a pair of axially spaced seal members secured on the periphery of the valve body with the liquid discharge ports positioned between the seal members, and wherein the valve cylinder may contact the seal members liquid-tightly at both axial ends when the liquid level reaches a predetermined level.

Abstract: The level of fuel in the float bowl of a carburetor is controlled by a semi-spherical inlet valve that is carried by an ambient pressure responsive aneroid-toroidal float assembly in position to coact with a vertically adjustable seat on a fuel inlet whereby the level of fuel in the float bowl is compensated for pressure and altitude variations.

Abstract: An improved tank flushing system is described for use with a toilet bowl or other flushed system. An inlet valve for the tank includes a valve stem which is opened by a flush lever and which is closed by the force of the inflowing water under the control of a float. The outflow of the flushing water from the tank for the flushing operation is controlled by a flush valve comprising a flexible sealing member mounted on the tank bottom and coupled to a float. The flush valve is opened as the sealing member is lifted by the flush lever and remains opened under the control of the float until a predetermined volume of flush water has flowed from the tank.