Dual operated metering valve connected to both a hand operated push button and a foot operated push button
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United States of America Patent
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-
Dec 23, 1986
Grant Date -
N/A
app pub date -
Jan 27, 1986
filing date -
Jan 27, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved, remote controlled valve and dual push button assembly, having a hand operated push button which, when depressed and released, opens a water valve for a predetermined length of time after which the valve closes. The valve is also connected to a foot operated push button which, when depressed, holds the valve in an open configuration as long as the foot button is depressed. The improved valve and button assembly provides an air flow path through the foot button when the foot button is not depressed. The air flow path utilizes a hole in a diaphragm of the foot button which communicates with an air flow path in the base of the piston which depresses the foot button diaphragm. The disclosure also includes a check valve held in the needle valve which is a part of the timing mechanism of the hand operated button. The check valve prevents the flow of air out through the needle valve and permits air to only flow in through the needle valve.
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