Be Intellectual Property, Inc.

Enrique A Cordero

Gary Ray Hannah

Thomas K McDonald

Kirsten Suzanne Frogley

James P Morris

Thomas K Mcdonald

A valve assembly () including a valve body () and a position-indicating knob assembly () is provided wherein the assembly () indicates three different valve positions, namely valve closed, partially opened and full open positions. The preferred assembly () includes a rotatable knob () including a viewing port () therein, together with an indicator ring () having three differently colored regions () corresponding to the different valve positions. A coupling assembly () operably couples the knob () and indicator () so that the individual colored regions () come into view through the port () when the valve body () reaches the different valve positions. The assembly () is particularly useful with valves requiring greater than one revolution between valve closed and valve full open positions, such as valves used in conjunction with emergency oxygen cylinders on aircraft.

Aircraft oxygen valve having knob with distinctive position indicator

An improved crew oxygen mask and stowage assembly combination ( ) is provided including a stowage box ( ) equipped with a door ( ), with a crew mask assembly ( ) made up of a mask ( ), gas-conveying tubing ( ) and valve unit ( ). The box ( ) also includes a valve-controlling switch lever ( ) for selective gas-on or gas-off operation of valve unit ( ). In normal conditions, the mask ( ) and tubing ( ) are stowed within box ( ) with lever ( ) oriented in the gas-on position, so that the tubing ( ) is pressurized and mask ( ) may be quickly pulled from the box ( ) and used. After such use, the switch lever ( ) is shifted to the gas-off position, causing the tubing ( ) to be depressurized; this allows easy restowage of the tubing ( ) and mask ( ) within the box ( ). However, when door ( ) is closed, the switch lever ( ) is cammed back to the gas-on position, thereby repressurizing tubing ( ) and returning the combination ( ) to a full-ready condition.

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Overland Park, KS, United States of America

Enrique A Cordero