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A fluid dispenser nozzle comprising a valve

IP.com Disclosure Number: IPCOM000220589D
Publication Date: 2012-Aug-08
Document File: 2 page(s) / 385K

Publishing Venue

The IP.com Prior Art Database

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 62% of the total text.

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A fluid dispenser nozzle comprising a valve.

Disclosed are different valves that are useful in pressure atomizing nozzles.

All the valves are constructed such that fluid can pass the valves only after reaching a certain desired pressure but, immediately after the conveying pressure drops below a predetermined value, fluid can no longer pass the valves.

The valve might be a drip preventing valve adapted to be installed into a conduit between the discharge outlet of an oil burner pump and a nozzle outlet hole. The valve responds to the pressure in that conduit and closes whenever the pump stops, thereby preventing leakage or dripping from the nozzle.

In a first not disclosed solution the valves consist of a body of one or more closed flexible-walled cells filed with air at atmospheric pressure. When the valve body is subjected to a larger pressure, it is compressed thereby opening the valve. When the larger pressure is relieved, the valve closes.

In a second solution the valve comprises a valve body that is lifted, tilted or pressed away and leaves an opening for the fluid. The valve is only lifted, tilted or pressed away when the fluid has reached a certain desired pressure. The fluid passes the open valve and flows to the outside of the nozzle cone.

In a third solution the valve comprises an O-ring. The O-ring is pressed away and leaves an opening when the fluid is subjected to a larger pressure than a pre-defined pressure level. The fluid passes the open valve...