Fluid sprinkling – spraying – and diffusing – Including supply holder for material – Moving solid surface engages material to be sprayed
Reexamination Certificate
1999-11-22
2001-07-24
Scherbel, David A. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Including supply holder for material
Moving solid surface engages material to be sprayed
C239S152000, C239S321000, C239S331000, C239S373000, C222S175000, C222S386000, C222S385000, C222S383300
Reexamination Certificate
active
06264120
ABSTRACT:
TECHNICAL FIELD OF THE INVENTION
The present invention relates generally to the field of atomization of liquids. More specifically, the present invention pertains to a portable device for automatic mist generation.
BACKGROUND OF THE INVENTION
The use of misting devices to produce a cooling effect in a relatively high temperature environment is well known. The cooling effect is produced by an evaporation and absorption of an atomized or vaporized liquid (usually water) by a surrounding high temperature gas (usually air). This evaporation and absorption process reduces the air temperature in an area proximate to the mist. Atomizing or misting nozzles connected to a pressurized water supply are commonly used to produce this cooling mist or vapor.
A known application of this principal attaches multiple misting nozzles to a length of hollow pipe. The pipe is closed at one end and is attached to a pressurized water supply at another end. The pipe is attached to a fixed surface or support such as a post or several ceiling joists. This provides a cooling mist for a local area covered by the fixed misting system.
Other applications use a portable or personal misting device that can be easily carried by an individual wherever they go and activated whenever the individual chooses. One such device incorporates an air pumping mechanism with a portable water bottle and a valve actuated misting nozzle. The air pumping mechanism uses a single cup seal attached to an end of a hollow plunger rod residing inside a hollow cylinder, to force air inside the hollow cylinder into the water bottle. For this device the hollow cylinder is located inside the water bottle and has passages, seals, and one-way valves that allow uni-directional flow from the cylinder into the water bottle. By sliding the plunger rod back and forth inside the hollow cylinder, air is taken in through a one-way valve in the hollow plunger rod, and passed into the hollow cylinder where the cup seal forces the air through another one-way valve and into the water bottle. The valve actuated misting nozzle is attached to the top of the water bottle such that when the water bottle has a sufficient amount of water and compressed air, pressing or holding the valve down causes water to be dispersed through the misting nozzle.
Unfortunately, this portable misting device requires excessive repetitive pumping action to provide sufficient air pressure inside the water bottle before misting can take place. The number of pumps determines the amount of air pressure inside the water bottle which determines the duration and pressure of the mist available to the individual. Longer lasting, higher-pressure mist is desirable for cooling purposes. Unfortunately, to achieve a desirably longer lasting higher-pressure mist, the individual needs to perform more and more pump strokes to increase the air pressure in the water bottle. Furthermore, the valve actuating the misting nozzle must be held depressed during the misting operation, resulting in an inconvenient hands-on type of operation. This misting device uses compressed air to force water through the misting nozzle which requires seals and valves that can provide not only watertight but airtight connections as well.
Accordingly, a need exists for a portable automatic misting device that can pressurize and automatically disperse a liquid through a misting nozzle for a desirable length of time. Such a device should also provide for ease of portability and operation.
SUMMARY OF THE INVENTION
Accordingly, it is an advantage of the present invention to provide a portable automatic misting device.
Another advantage of the present invention is to provide a portable automatic misting device that is actuated by a single manual input pumping stroke.
Another advantage of the present invention is to provide a portable automatic misting device that is easy to carry and easy to operate.
Another advantage of the present invention is to provide a portable automatic misting device that generates a relatively high hydraulic pressure to produce the mist.
Another advantage of the present invention is to provide a portable automatic misting device that does not use airtight seals.
Another advantage of the present invention is to provide a portable automatic misting device that uses a remotely located liquid supply container to provide a relatively high quantity of desirable misting operations.
The above and other advantages of the present invention are carried out in one form by a portable automatic misting device that uses a misting device assembly to automatically disperses a mist. The misting device assembly has a hollow cylinder that forms a liquid reservoir. Located inside the hollow cylinder is a means for regulating the reservoir, including a one-way valve that is configured to permit liquid flow into the reservoir and a resilient member that is coupled to the regulating means and is biased to automatically shrink the reservoir. The assembly also includes a misting nozzle that is in fluid communication with the reservoir.
REFERENCES:
patent: 1730684 (1929-10-01), Phillips
patent: 1900668 (1933-03-01), Roselund
patent: 2048142 (1936-07-01), Santurello
patent: 2096042 (1937-10-01), Irwin
patent: 2626185 (1953-01-01), Roselund
patent: 2741511 (1956-04-01), Rollins
patent: 2789396 (1957-04-01), Jernander et al.
patent: 2880939 (1959-04-01), Esmay
patent: 3799448 (1974-03-01), Nozawa et al.
patent: 4196828 (1980-04-01), Basile et al.
patent: 4324362 (1982-04-01), Stansbury, Jr.
patent: 5031839 (1991-07-01), Waldrum
patent: 5620140 (1997-04-01), Utter
patent: 5676314 (1997-10-01), Brass et al.
patent: 5816447 (1998-10-01), Shanklin et al.
patent: 6095434 (2000-08-01), Montenegro
Montenegro Leonard
Wintering Gary
Arizona Mist, Inc.
Ganey Steven J.
Gresham Lowell W.
Meschkow Jordan M.
Meschkow & Gresham P.L.C.
LandOfFree
Portable automated misting device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable automated misting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable automated misting device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2510413