Impeller Upstream Of Separating Media Patents (Class 55/473)
  • Patent number: 10675576
    Abstract: Methods and apparatus for sterilization are presented. An exemplary embodiment includes a sterilizing cabinet assembly. The sterilizing cabinet includes a cabinet having an access port, a door connected to the cabinet, the door moveable between an open position permitting passage through the access port to an interior of the cabinet and a closed position precluding passage through the access port. The sterilizing cabinet assembly also includes at least one of the cabinet and the door having a vent port. The sterilizing cabinet has a primary filter overlying the vent port and forming a sealed interface with an adjacent portion of the one of the cabinet and the door and a secondary filter overlying at least a portion of the primary filter.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: June 9, 2020
    Assignee: Turbett Surgical, Inc.
    Inventors: Robert E. Turbett, Richard D. Richmond
  • Patent number: 10563667
    Abstract: An air flow controller for an air cleaner and an air cleaner are provided. The air flow controller may include a fan, and a housing, the fan being provided in the housing and the housing being movable from an initial horizontal position in which the air flow controller directs air flow in a vertical direction to an inclined position in which the air flow controller directs air flow in a diagonal direction.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: February 18, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Jaekyun Park, Hyunpil Ha, Soonki Jung, Yeongcheol Mun, Soohyun Bae
  • Patent number: 10034550
    Abstract: The invention relates to a sound dampening device (1) comprising a frame (2), a rear layer (4) and a front layer (6) arranged on opposite sides of the frame (2), such that the frame (2), the rear layer (4) and the front layer (6) forms an enclosed space, wherein a first sound absorbing layer (8) is arranged between the rear layer (4) and the front layer (6). A cavity (10) is formed between the rear layer (4) and the first sound absorbing layer (8) and an air purifying device (12) is arranged in fluid communication with said cavity (10), such that purified air from the air purifying device (12) is supplied to the cavity (10) via an inlet (14) and is discharged through at least one opening (16) in the first sound absorbing layer (8) and at least one output zone (18) in the front layer (6).
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: July 31, 2018
    Assignee: ARTEX AB
    Inventor: Mats Rydsund
  • Patent number: 9416681
    Abstract: A turbo compressor includes a housing in which lubrication oil is accumulated, a gear that is housed in the housing and to which the lubrication oil is supplied, a demister that is disposed above the gear and on which an intake is provided to catch oil mist of the lubrication oil in the housing, a gear cover that is provided surrounding the gear to catch lubrication oil splashed by the gear and then drip the caught lubrication oil downward, and a demister cover that is disposed near the demister to drip the lubrication oil caught by the demister downward. Here, a narrow gap is formed between the demister cover and an inner wall surface of the housing. According to the turbo compressor, an amount of lubrication oil flowing through the demister can be reduced by the gear cover and the demister cover.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: August 16, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou Oda, Nobuyoshi Sakuma
  • Patent number: 9199189
    Abstract: An ozone and odor removing filter media having a filtration layer and a supporting layer. The supporting layer includes activated carbon fibers or powders, or both, incorporated within the supporting layer. The activated carbon particles can be added to the supporting layer by combining them with binder in a slurry and extending the already-formed supporting layer through the slurry. The wetted layer then extends through opposed rollers to remove all but a desired amount of slurry. Alternatively, the activated carbon particles can be added to the mixture when forming the supporting layer.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: December 1, 2015
    Assignee: Columbus Industries, Inc.
    Inventor: Thaddeus J. Ptak
  • Patent number: 8974565
    Abstract: An air filtration and air purification apparatus comprising: a first air channel; a second air channel; a divider that separates the first air channel from the second air channel; a first filter located in first air channel; a first filter located in the second air channel; a first air blower configured to pull air from the ambient environment generally into the first air channel, moving said air through the first filter, and returning said air into the ambient environment, creating generally a first air stream; a second air blower configured to pull air from the ambient environment generally into the second air channel, moving said air through the second filter and returning said air into the ambient environment, creating generally a second air stream; a control system that controls the activation and deactivation of the first and second air blower.
    Type: Grant
    Filed: September 5, 2011
    Date of Patent: March 10, 2015
    Inventors: Michael Cecchi, Monica Mezezi
  • Patent number: 8950401
    Abstract: A breathing apparatus is operable in self-contained and filtered modes of operation. In the self-contained mode of operation, a breathable gas is delivered to a user from a self-contained source of breathing gas. In a second, filtered mode of operation, a suction source draws ambient air through a filter removing contaminants and delivers filtered ambient air to the user. A method of delivering air to a subject is also provided.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: February 10, 2015
    Assignee: Wilcox Industries Corp.
    Inventors: James W. Teetzel, Gary M. Lemire, Daniel A. Desrosiers, Mark A. Hansen
  • Publication number: 20150020485
    Abstract: There are provided an air leakage preventing structure and an air cleaner having the same. The air leakage preventing structure includes: a partition unit having an inlet opening formed on one side thereof to allow air to be introduced therethrough and having a rib formed to be protruded from the circumference of the inlet opening; an air blowing fan coupled to the partition unit and rotating to allow air to be introduced through the inlet opening; a motor unit connected to the air blowing fan to rotate the air blowing fan; and an air guide unit connected to the rib formed to be protruded from the partition unit to form an outlet opening, and preventing air leakage when air introduced through the inlet opening flows out through the outlet opening.
    Type: Application
    Filed: March 12, 2013
    Publication date: January 22, 2015
    Applicant: COWAY CO., LTD
    Inventors: Hyun-Jin Hong, Chan-Jung Park, Sang-Woo Kang
  • Patent number: 8915983
    Abstract: A range extractor hood includes a screen, at least one filter element and at least one pivot bearing which swingably supports the at least one filter element on the screen. At least one locking member retains the at least one filter element to the screen. Located on the screen is a releasing device for, at least partially, releasing the locking member and retention of the filter element.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: December 23, 2014
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Anna Broβmann, Julia Ehrensberger, Andrzej Goczol, Michael Hegendörfer, Robert Hibelt, Thomas Kotlinski, Daniel Metz, Stefan Panten, Klaus-Heiner Rutsch, Ilka Schneider, Julia Wellhausen, Thomas Wilde
  • Publication number: 20140238244
    Abstract: A byproducts treating device includes a transfer unit, a cleaning unit, and a controller. The transfer unit forcibly transfers byproducts from a byproduct source. The cleaning unit is combined with the transfer unit and separates the byproducts into at least one of a power or a byproduct gas. The controller is connected to the cleaning unit and selects at least one selection line for discharging byproduct gas. The byproducts flow from the transfer unit to the cleaning unit without flow lines, and the controller selects the at least one selection line based on a flux of the byproduct gas.
    Type: Application
    Filed: February 11, 2014
    Publication date: August 28, 2014
    Inventor: Kyoung-Hwan CHIN
  • Patent number: 8801823
    Abstract: A system for separating contaminants from an airstream, including a centrifugal fan and housing; a contaminant containment vessel mounted to an outer surface of the housing; and a diverter in the airstream downstream of the fan and within the housing, the diverter being configured to separate a portion of the airstream from a remainder of the airstream, accelerate the portion of the airstream towards the containment vessel, and thereafter guide the portion of the airstream towards the remainder of the airstream. The diverter preferably does not negatively impact the rated performance of the fan, such that a performance of the system is not measurably different than the rated performance of the fan and housing combination. The diverter may accelerate contaminants entrained in the airstream toward the containment vessel, thereby separating the contaminants from the airstream.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: August 12, 2014
    Assignee: Leseman Davis, LLC
    Inventors: Joseph Byron Davis, Gary Thelen Leseman
  • Patent number: 8574331
    Abstract: Embodiments disclosed herein include air-treatment mask systems having at least one controllable air-treatment device that is controlled responsive to one or more signals from at least one pollutant sensor, and related methods of operation and air-treatment masks. In an embodiment, an air-treatment mask system includes a wearable air-treatment mask having a mask body including a face-securing member, and at least one controllable air-treatment device supported by the mask body. The air-treatment device is configured to treat incoming air. The system includes at least one pollutant sensor configured to sense ambient air for a presence of at least one pollutant and output one or more signals responsive to the sensing. The system includes control electrical circuitry operably coupled to the air-treatment device and the pollutant sensor and configured to control operation of the controllable air-treatment device responsive to receiving the signal(s) from the pollutant sensor.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: November 5, 2013
    Assignee: ELWHA LLC
    Inventors: Mahalaxmi Gita Bangera, Roderick A. Hyde, Jordin T. Kare, Lowell L. Wood
  • Patent number: 8562704
    Abstract: A filter box for a surface maintenance machine incorporating aspects of a fan housing. In one example, a filter box for a sweeping machine is provided with an impeller fan housing beneath a cylindrical filter. Operation of the impeller fan draws air from a debris hopper, through the cylindrical filter, and through an expansion chamber defined by a scroll conduit prior to outlet to atmosphere.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: October 22, 2013
    Assignee: Tennant Company
    Inventors: Kurt Clarence Adelman, Larry David Wydra
  • Publication number: 20130251493
    Abstract: The present invention discloses a stacking device and an air purification system thereof. The stacking device includes vertically arranged stacking arms and a manipulator mechanism provided on the stacking arms; the stacking arms forming an axially extending duct and comprising first airflow driving devices; the duct forming air inflow openings that are in communication with an outside space of the stacking arms and an air outflow opening arranged at a lower end of the stacking arms; wherein the first airflow driving devices draw in air of the outside space of the stacking arms through the air inflow openings of the duct and drive air inside the duct to flow downward to be discharged through the air outflow opening of the duct to the lower end of the stacking arms.
    Type: Application
    Filed: April 1, 2012
    Publication date: September 26, 2013
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Erqing Zhu, Chun Hao Wu, Kun Hsien Lin, Yongqiang Wang, Weibing Yang, Xiande Li
  • Patent number: 8529670
    Abstract: Aseptic bottling or container filling plant with a clean room arrangement enclosing the aseptic bottling or container filling plant and a filter unit for filtering air entering the clean room, and a method of operation thereof.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: September 10, 2013
    Assignee: KHS GmbH
    Inventor: Daryoush Sangi
  • Patent number: 8496719
    Abstract: A dust collection system has a cyclone separator in which dust is separated from an air stream and the air stream is passed from a separator and flows through a final filter back into the ambient air. A flame arrester is positioned downstream of the separator, either in advance of or after the final filter. The flame arrester defines a multiplicity of narrow channels to permit exhaust air flow but block any flame front. In a preferred embodiment the flame arrester is in the form of a sheath of a porous metal material surrounding the final filter. The sheath may comprise a metal wire mesh screen, with a guard cage surrounding the screen.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: July 30, 2013
    Assignee: Oneida Air Systems Inc.
    Inventor: Robert M. Witter
  • Patent number: 8491686
    Abstract: A dust collector arrangement has a dust separator supported on a frame, with a lid for the dust collection barrel is mounted onto the frame below it. The lid is supported at a fixed elevation above the surface of the shop floor to create a space or clearance between the rim of the dust collection barrel and the lid. The barrel is supported on casters, and can be rolled into place under the rim, and can be rolled out for emptying. Over-center latches positioned at intervals around the upper part of the barrel side wall, engage corresponding structure on the lid. These pull the barrel upwards against the lid and with the barrel casters lifted off the floor surface. The latch members release to lower the barrel for emptying.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: July 23, 2013
    Assignee: Oneida Air Systems, Inc.
    Inventors: Robert M. Witter, Jeffrey Hill, John J. Fitzsimmons
  • Patent number: 8490585
    Abstract: The invention relates to a portable, hand-held work apparatus such as a chain saw, a cut-off machine, a brush cutter or the like with an air cooled combustion engine. A cooling air blower (4) which includes a cooling air spiral (6) and a fan wheel (5), moves a cooling air flow (13) for cooling the combustion engine. Further a combustion air channel (30) leads from the cooling air blower (4) to the combustion engine (2) and branches off from an air output window (20) provided in the base (14) of the cooling air spiral (6). The diverting device (21) includes a guide wall (22) which extends into the cooling air spiral (6) between the fan wheel (5) and the air output window (20). In order to divert a large volume of combustion air (19) with minimal disruption to the cooling air flow, the pass-through cross-section of the air output window (20) tapers in the direction of the diverted combustion air (19) from a first pass-through area (29) to a second pass-through area (31).
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: July 23, 2013
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Wolfgang Kienzle, Martin Rieber
  • Patent number: 8491685
    Abstract: A dust collection arrangement employs a variable frequency drive to supply AC to its fan motor. A current sensor measures the current drawn by the motor, and this is compared with a preset value. The variable frequency drive adjusts the frequency of the AC applied to the motor to maintain the motor current at the preset level. This keeps the flow of air in the system optimal as dust producing tools are added or taken off.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: July 23, 2013
    Assignee: Oneida Air Systems Inc.
    Inventors: Robert M. Witter, Jeffrey Hill
  • Patent number: 8470064
    Abstract: A system for separating contaminants from an airstream, including a centrifugal fan and housing; a contaminant containment vessel mounted to an outer surface of the housing; and a diverter in the airstream downstream of the fan and within the housing, the diverter being configured to separate a portion of the airstream from a remainder of the airstream, accelerate the portion of the airstream towards the containment vessel, and thereafter guide the portion of the airstream towards the remainder of the airstream. The diverter preferably does not negatively impact the rated performance of the fan, such that a performance of the system is not measurably different than the rated performance of the fan and housing combination. The diverter may accelerate contaminants entrained in the airstream toward the containment vessel, thereby separating the contaminants from the airstream.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: June 25, 2013
    Assignee: Leseman Davis, LLC
    Inventors: Joseph Byron Davis, Gary Thelen Leseman
  • Patent number: 8454716
    Abstract: A particle separating structure for use with a turbine engine. The particle separating structure includes a main housing, first swirling structure, and second swirling structure. The first swirling structure is provided for swirling cooling fluid passing through a first cooling fluid flowpath defined in the main housing. The second swirling structure is provided for swirling cooling fluid passing through a second cooling fluid flowpath defined in the main housing. The first swirling structure is positionable in at least two positions, a first position allowing cooling fluid to pass through the first cooling fluid flowpath and a second position allowing cooling fluid to pass through the first and second cooling fluid flowpaths. The swirling of the cooling fluid causes particles in the cooling fluid to pass to a particle discharge zone while the cooling fluid passes out of the main housing through a cooling fluid outlet.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: June 4, 2013
    Assignee: Siemens Energy, Inc.
    Inventor: Patrick M. Sedillo
  • Patent number: 8414673
    Abstract: A system and apparatus for enhancement of inlet air mass for processes by progressive filtration and intermediate cooling.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: April 9, 2013
    Assignee: Freudenberg Filtration Technologies India Pvt. Ltd.
    Inventors: Atul Raje, Anand Singh
  • Patent number: 8377160
    Abstract: A cyclonic dust collector arrangement employs a cyclone that has a conic body formed of a conic wall. An upper divider plate closes off the upper end of the conic body, with a vortex tube descending from a central passage in the divider plate. The conic body has a narrow nose at a lower end so that the upper divider plate and the lower nose define a cyclonic chamber within the conic body. The inlet conduit penetrates the conic wall below the divider plate. The fan chamber of the separator is mounted above the divider plate, and serves to induce air flow from the inlet conduit into the cyclonic chamber, and through said vortex tube into the fan chamber. The air is discharged through a final filter. This construction has reduced manufacture costs and improved dust separation.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: February 19, 2013
    Assignee: Oneida Air Systems, Inc.
    Inventor: Robert M. Witter
  • Patent number: 8357232
    Abstract: The present invention relates to a system and method for the separation of gaseous components from gaseous mixtures in order to control emissions and treatment of the gaseous components. In one embodiment, the system makes use of a fan or gas moving device to first impose centrifugal forces on gas streams as the gas moves from the center of the fan toward the periphery of the fan housing. Heavier gases are forced to the outer regions of the fan housing while lighter gases remain closer to the fan axis. The heavier gases and lighter gases exiting the fan housing flow into a duct at different flow rates, and the heavier gases are diverted from the larger volume gas streams and then processed.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: January 22, 2013
    Assignee: Casella Waste Systems, Inc.
    Inventor: Garrett L. Morrison
  • Patent number: 8246705
    Abstract: A grease containment apparatus to remove grease and other contaminants from hot air exiting a kitchen area through a vent system which includes a vertical separator.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: August 21, 2012
    Inventors: Charles E. Bain, David D. Williams
  • Patent number: 8152881
    Abstract: A housing for a centrifugal fan includes a surrounding wall extending upwardly from a periphery of a bottom wall with an air inlet, and including a surrounding wall body defining an opening, a protruding wall body extending outwardly from the surrounding wall body, corresponding to the opening, and having a dust-discharging hole, and a shielding plate disposed on the protruding wall body. The surrounding wall body and the bottom wall cooperatively define an accommodation space communicated with the air inlet, and an air outlet communicated with the accommodation space. The protruding wall body, the shielding plate, and the bottom wall cooperatively define a turbulence space communicated with the accommodation space. The shielding plate is movable between a closed position to close the dust-discharging hole, and an open position to open the dust-discharging hole so as to permit fluid communication between the turbulence space and the outside environment.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: April 10, 2012
    Assignee: Wistron Corporation
    Inventors: Ming-Chih Chen, Wei-Cheng Chou
  • Patent number: 8097059
    Abstract: An exhauster bypass system 20 receives an input flow of gases and entrained fine solid particles 15 from a pulverizer 12 and separates the input flow into a particle-deficient gas flow and a particle-laden gas flow. The particle-deficient gas flow is provided to a fan of an exhauster assembly through a central outlet, while the particle-laden gas flow is provided to the exhauster assembly away from the fan through a bypass outlet. The bypass system includes a housing that provides a chamber for separating the particles from the hot gases to produce the particle-laden gas flow and a particle-deficient gas flow. The bypass system further includes a plurality of vertically stacked louvers disposed before the central outlet for separating the particles from the input gas flow. The outlet may include a seal or bypass fan in fluid communication with the bypass outlet to provide the particle-laden gas flow to the exhauster assembly.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: January 17, 2012
    Assignee: ALSTOM Technology Ltd
    Inventor: Douglas Whitney Crafts
  • Patent number: 8066789
    Abstract: A system for depressurizing and cooling a high pressure, high temperature fine solid particles stream having entrained gas therein. In one aspect, the system has an apparatus for cooling the high pressure, high temperature fine solid particles stream having entrained gas therein and a pressure letdown device for depressurization by separating the cooled fine solid particles from a portion of the fine solid particles stream having entrained gas therein, resulting in a lower temperature, lower pressure outlet of solid particles for disposal or handling by downstream equipment.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: November 29, 2011
    Assignee: Southern Company
    Inventors: Guohai Liu, Wan Wang Peng, Pannalal Vimalchand
  • Publication number: 20110236448
    Abstract: A method for passively reducing nosocomial infections by providing fabrics for patient contact only as media for air filtration in areas with patient populations, which fabrics have been treated with a solution of eugenol of sufficient strength and for sufficient time to reduce the percentage of viable microbes in the fabrics by at least 2 log units.
    Type: Application
    Filed: May 20, 2011
    Publication date: September 29, 2011
    Applicant: PHILADELPHIA UNIVERSITY
    Inventors: Diana R. Cundell, Alexander A. Messinger, Brian R. George
  • Patent number: 7998231
    Abstract: An air purifier includes a housing, a centrifugal fan and an air purifying filter. The fan is substantially centered in the housing. The fan has a rotary shaft extending in a depth direction of the air purifier and a fan inlet port facing frontward. Air suctioned by the fan is blown out in a direction perpendicular to the rotary shaft. The filter is aligned with the fan along the direction perpendicular to the rotary shaft. An air inlet port is disposed in front of the fan so as to communicate with the fan inlet port. When the fan rotates, air is suctioned into the air purifier via the air inlet port. An air outlet port is arranged relative to the filter such that air purified by the filter is blown out of the air purifier through the air outlet port.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: August 16, 2011
    Assignee: Daikin Industries, Ltd.
    Inventors: Zhiming Zheng, Yasuhiro Oda, Tooru Fujimoto
  • Patent number: 7955404
    Abstract: A dust collector includes a shell, an exit tube, an inner tube, a suction device, a first dust container, a bypass tube and a first dust bag. The shell defines a first receiving room therein. The exit tube defines an exit passage therein. The inner tube defines a connection passage which has a first opening and a second opening. The first opening communicates the first receiving room, and the second opening communicates the exit passage. The suction device provides the exit passage with a negative pressure. The first dust container defines a second receiving room therein. A mesh is disposed on a bottom surface of the first dust container to divide the second receiving room into a first chamber and a second chamber. The bypass tube defines a bypass passage therein, and it communicates the connection passage with the second chamber. The first dust bag is disposed in the first chamber.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: June 7, 2011
    Inventor: Tony Lin
  • Patent number: 7947100
    Abstract: A compact suction and separation device is shown and described. The suction and separation device includes a pump and a separator. The pump includes a vertically oriented rotary vane pump comprising a suction inlet and an exhaust outlet. The separator includes a collector configured to receive combinations of solids, liquids and air. The separator separates solids and/or liquids from the air. Air from the separator is routed from an air discharge into the suction inlet of the pump. Solids and/or liquids are drained from a liquids/solids discharge of the separator. The separator may be gravity-based or centrifuge-type separator driven by the pump motor.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: May 24, 2011
    Assignee: Gast Manufacturing, Inc.
    Inventors: Delbert Thomas, Christopher Lee Blackburn, Troy Smits
  • Publication number: 20110100221
    Abstract: An air purifier includes a vertically disposed housing provided with a wire gauze filter, electric fans and air filter elements. The electric fans draw outside air around the floor vertically into the bottom air intake port toward the top air output port of the housing so that the flow of air, when passed out of the air output port, flows upwards to a certain elevation and is then diffused and lowered in all directions around the housing. By means of the traction of the flow of air, the pressure difference of the convection of air between the low air pressure and the high air pressure at the bottom and top sides of the housing, high concentration of car waste gas, micro dust particles, hair dust, micro fibers and other harmful industrial odors that fall to the floor due to the effect of gravity or floating nearly above the floor are sucked into the inside of the housing by the low air pressure zone at the open bottom side of the housing and then removed by the filter elements.
    Type: Application
    Filed: November 2, 2009
    Publication date: May 5, 2011
    Inventor: Fu-Chi Wu
  • Patent number: 7931716
    Abstract: A cleaning appliance includes a main body, a filter and an interlock. The main body includes an airflow generator, a separating apparatus separating dirt and dust from an airflow, and a flowpath between the separating apparatus and the airflow generator delimited by a wall. The interlock has a first part located on the filter and a second part located on the main body outside the flowpath, arranged to communicate remotely when the filter is correctly located in the pre-determined position. The interlock is arranged selectively to allow or prevent operation of the airflow generator depending upon the relative separation between the first and second parts. By providing an interlock which has first and second parts which communicate remotely, the second part located on the main body can be isolated from the airflow path so that the second part is not subject to dirt and dust carried by the airflow.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: April 26, 2011
    Assignee: Dyson Technology Limited
    Inventor: George Francis Paul Oakham
  • Patent number: 7931718
    Abstract: An oil mist separator includes a body inside which a filtering chamber is formed for a filtering unit made up with several centrifugal dust collectors. With an air intake unit, the outside oil mist is sent into the filtering chamber. Then, the centrifugal dust collectors are used to cause a spiral airstream. With a centrifugal force caused by the spiral airstream, the oil mist is made to separate from the air. Next, the filtered air of zero pollution is vented to the atmosphere, and the separated oil mist is collected and recycled. Thus, the oil mist may be separated and the recycled oil mist may be made into a low-level oil product or a release agent used in the building industry for achievement of the effect of environmental protection.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: April 26, 2011
    Assignee: San Ford Machinery Co., Ltd.
    Inventor: Mao-Nan Cheng
  • Patent number: 7914597
    Abstract: A dust collector includes turbofans with inducers fixed to the shafts of electric motors. The electric motors are fixed to the rectangular body with mounting legs. The dust collector further includes a single dust collecting filter under the turbofans. The turbofans have a diameter ranging from 40% to 50% of the length of the short side of the body.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: March 29, 2011
    Assignee: Panasonic Corporation
    Inventors: Kazuo Ogino, Atsushi Nagata, Hitoshi Nozu
  • Patent number: 7909922
    Abstract: A dehumidifier is provided. A dehumidifier includes a cabinet defining an outer appearance, a barrier installed in the cabinet to collect condensed water removed from air, a bucket assembly for storing the condensed water directed from the barrier, and a condensed water detecting unit for detecting an amount or level of the condensed water stored in the bucket assembly.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: March 22, 2011
    Assignee: LG Electronics Inc.
    Inventors: Duck-Yong Jang, Chi-Wao Kim
  • Patent number: 7887614
    Abstract: An air shower device which prevents allergenic substances which cause hay fever from being brought into a living space, in which a person resides or carries out an activity, by an outside body. The air shower device includes a suction unit, which takes in outside air; an air blower unit having an air blower which blows air which has been taken in, at a specific air-flow rate and a filter which cleans by removing dust, including pollen, from air which is blown; and a dust collecting unit which collects dust, including pollen, from exhaust of an air shower room which includes the air blower unit. Further, the air shower device includes an air-flow rate control unit which controls the amount of air blown by an air blower according to an amount of pollen dispersed in the outside air.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: February 15, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Osamu Nakamura, Yasuyuki Arai
  • Patent number: 7874158
    Abstract: A compressor diffuser for a gas turbine engine is provided with a dirt separator. The dirt separator ensures the air having moved downstream of the compressor section, and moving toward the combustion section, is separated into a dirtier air flow path directly radially outwardly, and a cleaner airflow path directed radially inwardly. In this manner, the air reaching a combustion section, and the air being utilized for radially inner cooling air is relatively cleaner air. Further, the dirt separator provides a convenient surface for mounting a pressure sensor. In one embodiment, the dirt separator is mounted within the diffuser housing, and in a second embodiment, it is mounted immediately downstream.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: January 25, 2011
    Assignee: United Technologies Corporation
    Inventors: Lisa O'Neill, Edward F. Pietraszkiewicz, Richard Silverman, Barry Beckwith
  • Patent number: 7806951
    Abstract: The present invention is a mobile air contaminant control system that includes a filter assembly enclosed by a mobile outer chamber. The filter assembly is tapered to create a large volume air way downstream from the filter assembly that enables more even air flow and filter loading. One or more exhaust fans pull the air through the filter assembly and exhaust it to the exterior of the chamber. The system is functionally attached to an exterior structure having at least one air intake and housing a work piece. As airborne contaminants are generated from the work piece(s), the control system exhausts them from the exterior structure through the filter assembly and into the external environment.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: October 5, 2010
    Assignee: NIF Solutions Corp.
    Inventor: Timothy P. Zimmerman
  • Patent number: 7794518
    Abstract: A filter system for an air cleaner is provided according to an embodiment of the invention. The filter system includes one or more filter elements and a filter tray adapted to be received in a filter tray receptacle of the air cleaner. The filter tray includes a bottom surface and one or more bottom airflow apertures formed in the bottom surface. The filter tray receives the one or more filter elements.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: September 14, 2010
    Assignee: Oreck Holdings, LLC
    Inventors: Christopher M. Paterson, Charles W. Reynolds, Dennis T. Lamb
  • Patent number: 7789921
    Abstract: Portable devices for mitigating the accumulation and localized settling of airborne particulates are provided. The devices establish airflow patterns which push or carry various airborne particulates outwardly away therefrom, thereby establishing a localized zone having relatively fewer airborne particulates. Correspondingly, each the devices establishes a localized zone, defined circumferentially about the perimeter of the device, in which there is relatively less surface accumulation of particulates which were previously airborne and settled out. The devices establish such airflow patterns by proving a fan which draws a volume of air axially through a top portion of the device, then pushes the volume of air axially down through the device where it is radially emitted from the bottom portion of the device, defining a circumferentially expanding plane of airflow.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: September 7, 2010
    Assignee: S.C. Johnson & Son, Inc.
    Inventors: Matthew N. Thurin, Michael J. Maloney, Jeremy F. Knopow, Kevin L. Askling, René Maurice Béland
  • Patent number: 7748380
    Abstract: A combined air-supplying/air-purifying breathing system that includes a self-contained breathing apparatus, a facepiece for delivering breathable air from the self-contained breathing apparatus to a user, and a powered air-purifying respirator having at least one filter and a blower and having an output connected by a hose assembly to the facepiece. A control interface operationally connects the self-contained breathing apparatus to the powered air-purifying respirator. The self-contained breathing apparatus includes a pressure vessel, a cylinder valve assembly and a pressure reducer, all carried by a back frame, and the powered air-purifying respirator is adapted to be mounted on, and carried by, the back frame, by coupling the back frame and the respirator together at respective attachment points.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: July 6, 2010
    Assignee: STI Licensing Corporation
    Inventors: Jerry Allen Phifer, William Eugene Parson, Judge W. Morgan, III, Robert Daniel Williams
  • Publication number: 20100132155
    Abstract: A cleaning appliance such as a vacuum cleaner includes a main body housing a motor and fan unit for generating a fluid flow. The main body also houses a removable pre-motor filter located upstream of the motor and fan and a removable post-motor filter located downstream of the motor and fan. It is beneficial to permit the user to be able to monitor the condition of both the pre-motor filter and the post-motor filter, and to remove and replace them as required, and so access to both filters may be provided. It is more important that the user checks the pre-motor filter as it gets dirtier than the post-motor filter. Therefore, the post-motor filter is not accessible or removable from the main body until the pre-motor filter is removed from the main body, by removing its housing.
    Type: Application
    Filed: November 10, 2009
    Publication date: June 3, 2010
    Applicant: Dyson Technology Limited
    Inventors: Ian John BROUGH, Paul Dawson
  • Publication number: 20100132320
    Abstract: An air pollution control system comprising of a metal barrel-like housing with an in-take portion securely attached to top of industrial chimney or on the smoke chimney on the roofs of residential buildings, and an outlet portion, three electrical fans, the first two of which blow the polluted air coming from the chimney toward filter means installed after each fan, and a third fan blowing the cleaned air to the atmosphere. The said housing has a moveable door to be removed or pushed aside for cleaning the fans and/or filter means and replacing the filters regularly.
    Type: Application
    Filed: January 27, 2010
    Publication date: June 3, 2010
    Inventor: Ali Sharifi
  • Patent number: 7695537
    Abstract: A dust collector with a function of secondary collection is composed of a bottom base,an air guiding box installed above the bottom base and bored with a suction hole and a dust collecting hole at its upper and bottom surface respectively, a guiding device set inside the air guiding box, a filtering bag fixed on the guiding device, and a dust bag sealed with the lower dust collecting hole of the air guiding box. In using, dust can be drawn in by a blower to enter the air-guiding box. With a secondary filtration to prolong a service life of the filtering bag.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: April 13, 2010
    Assignees: San Ford Machinery Co., Ltd.
    Inventor: Chieh-Yuan Cheng
  • Patent number: 7695538
    Abstract: A negative pressure dust collector with a dust receiving bag comprises a ventilation hood and an exhaust device. The ventilation hood includes a motor, fan blades, and a first exit. A dust collection tank is positioned below the first exit. The exhaust device comprises a ventilation tube and a flexible tube.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: April 13, 2010
    Assignee: San Ford Machinery Co., Ltd.
    Inventor: Yun-Tai Cheng
  • Patent number: 7670400
    Abstract: A motor mount assembly for an air cleaner is provided according to an embodiment of the invention. The motor mount assembly includes a motor ring adapted for receiving a motor, a mount ring adapted to be received in the air cleaner, and a plurality of mounting vanes extending between the motor ring and the mount ring. A mounting vane of the plurality of mounting vanes includes a proximal end and a distal end. The distal end is affixed to the motor ring and the proximal end is affixed to the mount ring.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: March 2, 2010
    Assignee: Oreck Holdings, LLC
    Inventors: Charles W. Reynolds, Owen T. Bourgeois, Christopher M. Paterson
  • Patent number: 7658190
    Abstract: A powered air-purifying respirator that includes an enclosure, defining a single contiguous enclosed interior, an inlet duct, including an inlet and a distribution portion, that guides ambient air to the interior of the enclosure, a plurality of filter canisters disposed within the interior of the enclosure, and a blower that forces air through the at least one inlet, into the interior of the enclosure and through the plurality of filter canisters to produce filtered air suitable for breathing. A valve controls the flow of ambient air through the inlet duct. A fluid dam, disposed in an air path between the inlet and the filter canisters prevents liquids from reaching the filter canisters. The enclosure is reinforced and is adapted to provide protection for the filter canister from flame and heat while the filter canister is in use. A recirculation valve recycles previously-filtered air back into the enclosure.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: February 9, 2010
    Assignee: STI Licensing Corp.
    Inventors: Jerry Allen Phifer, William Eugene Parson, Judge W. Morgan, III, Robert Daniel Williams
  • Patent number: 7647927
    Abstract: A breathing apparatus is operable in self-contained and filtered modes of operation. In the self-contained mode of operation, a breathable gas is delivered to a user from a self-contained source of breathing gas. In a second, filtered mode of operation, a suction source draws ambient air through a filter removing contaminants and delivers filtered ambient air to the user. A method of delivering air to a subject is also provided.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: January 19, 2010
    Assignee: Wilcox Industries Corp.
    Inventors: James W. Teetzel, Gary M. Lemire, Daniel A. Desrosiers, Mark A. Hansen