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Class 261/24 - Pumping


Subclass of Class 261 - Gas and liquid contact apparatus
Definition: Including use of pumps.
No. of patents: 57
Last issue date: 05/19/2009


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NumberTitleIssue Date
7533872Oxygen generator
An oxygen generator including: a humidifier tank moves up and down according to a horizontal movement of an adjustment knob so that the humidifier tank can be readily detachable, and thus a user can securely and conveniently use the oxygen generator without any wate...
05/19/2009
7416579Preparing nanosize platinum-titanium alloys
Nanometer sized particles containing titanium and platinum are prepared by a sonochemical process. Compounds of the metals are dissolved, suspended, or diluted in a low vapor pressure liquid medium, preferably at a sub-ambient temperature. A reducing gas is bubbled ...
08/26/2008
7319849Radio-frequency tuner with differential converter
A system for tuning a radio-frequency signal includes a first input path, a second input path, a common reference generator, a selector, a mixer, and a filter. The first input path and the second input path propagate a first single-ended input signal and a second si...
01/15/2008
7309024Wick assembly for dispensing a volatile liquid from a container and method of assembling same
An interference fit assembly comprises a wick constructed of a porous polymer and a wall constructed of a polymer for interference engagement with the wick. The wick has a weight of 3.3 grams. ...
12/18/2007
7278631Composite support system for a fill media cooling tower
A base for a cooling tower having a fill media heat exchange system. The cooling tower, or heat transfer device, includes a plurality of heat exchanging plates positioned to form the fill media, a moisture collection area positioned under the heat exchanging plates,...
10/09/2007
7267325Aeration method of pool water and apparatus thereof
An aeration method of a water pool and an apparatus thereof are disclosed, suitable for use in an aquatic pool or an aerobic processing pool. The aeration method requires placing at least one biofilter device in the water pool. An aeration apparatus comprises a pump...
09/11/2007
7244398Device for dispensing a volatile liquid using a wick in an ambient air stream
A wick-based emanation device for dispensing a volatile liquid is disclosed. The dispensing device includes a housing and a fan mounted in the housing for generating an air stream used for dispersing the volatile liquid. Walls of the housing form an enclosure for mo...
07/17/2007
7238320Device for oxygenating blood in an extracorporeal circuit
A device for oxygenating blood in an extracorporeal circuit includes a first structure suitable to delimit a portion of space-containing capillaries made of microporous membrane. The capillaries convey oxygen and are wet externally by blood flowing through a portion...
07/03/2007
7228994Delayed flow water reservoir for a clothes drying cabinet and method of use
A delay flow water reservoir for a clothes dryer cabinet and method of use is provided. The delay flow reservoir has a container having an opening and a cap engaging the opening. The cap has a delay chamber with a drain opening, a seal covering the opening with firs...
06/12/2007
7182270Air freshening device
The invention relates to improvements in or relating to containers and in particular to an air freshening or purifying device utilizing a gel fragrance or other composition suitable for use in a vehicle. The air freshening or purifying device comprising a gel holder...
02/27/2007
7156377Water aeration device and method
A liquid feed line includes a stepped internal nozzle and an exit diameter smaller than the diameter of the liquid feed line. The stepped internal nozzle desirably introduces hydrodynamics or hydraulic waves for the fluid, with the number of steps selected based on ...
01/02/2007
7146726Cooling tower method and apparatus
A cross-flow cooling tower having a frame assembly that is unitarily molded from a plastic material. The frame assembly has opposing top and bottom walls along with opposing side walls and opposing ends. The side walls extend parallel to one another between the top ...
12/12/2006
7121804Fan system
A wind power generating system that includes a series of progressively larger fan fans, the fans positioned in series relative to one another such that the blades of the trailing fans project into the wind stream that has been disturbed by the preceding fan and the ...
10/17/2006
7055764Two-phase evaporator device
It relates to an evaporator device of those which are used to diffuse fragrances, insecticides or other substances which are held in a recipient (1) in the form of two immiscible liquids. It comprises two wicks (2, 2′) which extend from the interior ...
06/06/2006
7028917Air freshening device
The invention relates to improvements in or relating to containers and in particular to an air freshening or purifying device utilizing a gel fragrance or other composition suitable for use in a vehicle. The air freshening or purifying device comprises a gel holder ...
04/18/2006
7014174Evaporative cooling system
An evaporative cooling system is disclosed. The system includes a housing including a metal base sheet and a metal side wall and having at least one opening fitted with an evaporative medium pad and an exhaust vent. A pump is configured to disperse water over the ev...
03/21/2006
6966665Flameless candle with air intake chamber and air outflow chamber
A flameless candle includes a housing, which defines an enclosure. A wall is positioned in the enclosure to form an air intake chamber and an air outflow chamber. At least one opening is in communication with both the ambient air and the air intake chamber. At least...
11/22/2005
6960322Integrated blood handling system having active gas removal system and methods of use
Apparatus and methods for pumping and oxygenating blood are provided that include a gas removal system. An integrated blood processing unit is provided in which a gas removal/blood filter, pump and blood oxygenation element are mounted within a common housing. The g...
11/01/2005
6953495Low-energy venturi pre-scrubber for an air pollution control system and method
A low-energy venturi pre-scrubber optimized for removing abrasive particles from a gaseous effluent is disclosed. While venturi scrubbers are efficiently used for at removing entrained particulates in air pollution control systems, they can be damaged due to the abr...
10/11/2005
6939398Drum scrubber
The invention creates a new type of scrubbers: drum scrubber. In the drum scrubber, processed gas passes through a wet fiber filter, but unlike previously invented fiber-bed scrubber, the fiber is constantly cleaned. The cleaning is achieved by using filter material...
09/06/2005
6730267Integrated blood handling system having active gas removal system and methods of use
Apparatus and methods for pumping and oxygenating blood are provided that include a gas removal system. An integrated blood processing unit is provided in which a gas removal/blood filter, pump and blood oxygenation element are mounted within a common housing. The g...
05/04/2004
6689315Integrated blood handling system having improved pump
Apparatus and methods for pumping and oxygenating blood are provided that include a gas removal system and a pump impeller with a single piece metal insert. An integrated blood processing unit is provided in which a gas removal/blood filter, pump and bloo...
02/10/2004
5829188Extermination device and vaporization unit for extermination liquid
A liquid storage container, in which an extermination liquid is stored, is at an upper portion of a case. A gauze or other permeable material is mounted on the outer surface of a support on a lower portion of the liquid storage container. An upper end of ...
11/03/1998
5667731Portable fan device for use with a spray misting bottle
A portable fan device for use with a spray misting bottle which is capable of being mounted atop a spray applicating head portion of the misting bottle so that a fan blade unit of the fan device is positioned forwardly and in communication with an atomize...
09/16/1997
5573713Humidifier having multi-stage fans
A humidifier is disclosed having a fine control for the distribution of humidified air. The humidifier contains a multiplicity of air moving devices, e.g., fans, to enable large quantities of humidified air to be distributed in an area or conversely, only...
11/12/1996
5370829Apparatus for inducing air flow past a cartridge containing a vaporizable substance
A dispenser having a housing and at least one inlet vent and at least one outlet vent about the housing is shown. A fan, preferably a centrifugal fan, is operated by a battery and directs air into and out of the vents. A cartridge containing a vaporizable...
12/06/1994
5250232Humidifier
A portable humidifier adapted to rest on a supporting surface, the humidifier comprising a base defining a water reservoir and including a bottom wall having therein an air inlet opening spaced horizontally from the reservoir, legs supporting the bottom w...
10/05/1993
5236625Structural assembly
The present invention provides a structural assembly that includes at least four vertically extending columns which form corners of the structural assembly. Wall panels extend between adjacent columns, with at least two wall panels vertically stacked and ...
08/17/1993
5147581Evaporative air cooler
An evaporative air cooler with a rotary fan blowing and evaporating droplets generated by an impeller, which shares the same motor shaft with the rotary fan. The evaporative air cooler comprises a housing (1) having rear inlets (23), front outlets (3), an...
09/15/1992
5143655Efficiently packaged humidifier device
A humidifier including a base defining a reservoir adapted to retain a liquid volume; the base having an open top and a horizontal cross section including a substantially rectangular portion, and a substantially circular portion intersecting and projectin...
09/01/1992
5133904Humidifier
A humidifier comprising a cabinet including a top wall having therein an air outlet, a bottom wall having therein an air inlet, and a water reservoir having portions on opposite sides of the air inlet, a wicking element including generally horizontally sp...
07/28/1992
5076972Evaporative air conditioner with rotary fan serving as fluid supplier, atomizer and blower
An evaporative air conditioner with rotary fan playing multiple roles of supplying fluid, atomizing fluid and blowing air. The air conditioner comprises a housing (1) having four side grilles and a top cover (5). An electric motor (6) is vertically mounte...
12/31/1991
5034162High capacity portable humidifier
A portable humidifier including a base defining a reservoir; a storage tank demountably supported by the base and adapted to retain a supply of liquid, the tank defining an orifice communicating with the reservoir; and a valve for controlling liquid flow ...
07/23/1991
4892688Arrangement for expelling light volatile contaminants from liquids
To expel volatile contaminants from a liquid body, outer air is introduced into a perforated container arranged below the liquid surface and having an open bottom by the action of a suction blower creating an underpressure above the liquid surface. Air bu...
01/09/1990
4865775Humidifier with floating wick assembly
A room humidifier is disclosed as having a reservoir tank containing a freely and independently floatable wick element providing a constant evaporative area as the water level in the tank rises and falls. A fan is mounted in fixed position relative to an ...
09/12/1989
4788013Four-way airflow induced draft crossflow cooling tower
A crossflow cooling tower has a number of fill structure sections which are arranged at equally spaced intervals around the entire perimeter of a central plenum that receives generally horizontal currents of air simultaneously from all of the fill structu...
11/29/1988
4741869Apparatus for contacting a gas with a liquid, in particular for aerating waste water
An apparatus for aerating waste water comprising a surface aerator adapted to rotate about a vertical axis. A cap is disposed over the aerator, said cap being modified in several ways to improve the operation of the apparatus. In one embodiment a gas outl...
05/03/1988
4738805Humidifier
Apparatus for humidifying air in a hot-air furnace system or for use as an independent portable unit that also functions as an air filter, includes a closed cabinet through which air flows in a path between an air inlet opening and an air outlet opening. ...
04/19/1988
4720359Wrapped fan cylinder for water cooling tower
An initially flat sheet of a fan cylinder assembly is formed to an exact cylindrical configuration in such a manner that less than 20% of the material comprising the sheet in a direction along the thickness of the same is exposed to stress above the yield...
01/19/1988
4710325Aspirating aeration and liquid mixing apparatus
An aspirating aeration and liquid mixing apparatus is positioned in a body of water and includes a motor driven propeller positioned within an intake duct and driving water through a nozzle. A plenum with an air intake pipe extends about the nozzle. The n...
12/01/1987
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