By Mechanical Manipulation Patents (Class 95/282)
  • Patent number: 11969876
    Abstract: A processor determines, by referring to a memory, which of a plurality of behavior types a behavior type executed by a robot when a first sensor detects an obstacle is; determines a type of the obstacle detected by the first sensor; decides whether first behavior for increasing opportunities of interaction with the user or second behavior for handling the obstacle is performed, based on the behavior type executed by the robot when the first sensor detects the obstacle and the type of the obstacle detected by the first sensor; and controls the robot to cause the robot to execute the decided behavior.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: April 30, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Kento Ogawa
  • Patent number: 11885638
    Abstract: According to one aspect of the invention, there is provided a method for generating a map for a robot, the method comprising the steps of: acquiring a raw map associated with a task of the robot; identifying pixels estimated to be a moving obstacle in the raw map, on the basis of at least one of colors of pixels specified in the raw map and sizes of areas associated with the pixels; and performing dilation and erosion operations on the pixels estimated to be the moving obstacle, and determining a polygon-based contour of the moving obstacle.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: January 30, 2024
    Assignee: Bear Robotics, Inc.
    Inventors: Yeo Jin Jung, Seongjun Park, Jungju Oh
  • Patent number: 10994237
    Abstract: A filter bag is disclosed that comprises a porous membrane having a strength in the transverse direction to improve durability. There is a filter assembly for filtering particulates from a gas stream comprising a support substructure and a filter bag at least partially surrounding the support substructure. The filter bag comprises a porous membrane having a upstream surface exposed to the gas stream. The porous membrane is lightweight and has a structure to collect the particulates on the upstream surface. In particular, the porous membrane has a bubble point of 0.06 MPa or more and has a strength in a transverse direction that is 100 N/m or more. Other filter bags disclosed comprise a laminate comprising a porous membrane having a bubble point of 0.06 MPa or more and a second layer that acts as a sacrificial material.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: May 4, 2021
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Rebecca Spiegel
  • Patent number: 9566543
    Abstract: A device for filtering a gas stream, having a vessel partitioned into a first stage and a second stage, with an opening between stages. A filter element is positioned in the opening, with ends of the filter element extending into the first and second stages. The first member is removable from the second member while the filter element is positioned in the opening, to allow for replacement with a new clean member.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: February 14, 2017
    Assignee: JONELL FILTRATION GROUP
    Inventors: Alan L. Clarke, Schuyler S Smith, Steven G. Tollefson
  • Patent number: 9279169
    Abstract: A method for recycling a noble metal from Fischer-Tropsch synthesis products. The method includes: 1) filtering a reaction product in a Fischer-Tropsch synthesis reactor by an inner filter; discharging a filtered reaction product to a first filtration buffer tank; separating a gas phase product or a part of a liquid phase product from the reaction product; introducing the liquid-solid two-phase product to a refining filter for product refining; 2) introducing a liquid phase product containing a catalyst slurry to a dynamic filter, collecting the filtered liquid phase product including a waste catalyst and noble metal ions; introducing the liquid phase product to a second filtration buffer tank; and introducing the filtered liquid phase product to the refining filter; and 3) forming a clay filter cake on a filter disk; and refining the products introduced into the refining filter in 1) and 2).
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: March 8, 2016
    Assignee: SUNSHINE KAIDI NEW ENERGY GROUP CO., LTD.
    Inventors: Yilong Chen, Jiaqi Jin, Yanfeng Zhang, Kan Song, Xiaodong Zhan, Manyi Jiang
  • Publication number: 20150053082
    Abstract: A method for removing residual filter cakes that remain adhered to a filter after typical particulate removal methodologies have been employed, such as pulse-jet filter element cleaning, for all cleanable filters used for air pollution control, dust control, or powder control.
    Type: Application
    Filed: November 5, 2014
    Publication date: February 26, 2015
    Inventors: Jay C. Almlie, Stanley J. Miller
  • Publication number: 20140230651
    Abstract: A filtration system particularly suited for removing a particulate material from a hot gas includes a housing, a collection system including an array of collection elements, a cleaning system to clean the collected particulate material from the collection elements, and a removal system for removing the collected particulate material from the housing.
    Type: Application
    Filed: December 3, 2013
    Publication date: August 21, 2014
    Applicant: Cambridge International Inc.
    Inventors: Maxwell Lawrence KEELING, Melody Elizabeth FERNAAYS, Matthew Charles O'CONNELL, Grace Amarachukwu Pokoo AIKINS, George H. MESSICK, JR., Robert E. MAINE, JR.
  • Publication number: 20140230648
    Abstract: Embodiments provide methods, apparatuses, and articles of manufacture for filtering particulates from an airflow directed at a heat exchanger. A blade may gather the filtered particulates. The gathered particulates may then be exhausted.
    Type: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Applicant: Hewlett-Packard Development Company, L. P.
    Inventor: Mark D. Senatori
  • Publication number: 20140216251
    Abstract: Provided are an air-conditioner and a controlling method thereof. The air-conditioner includes a blower fan forcibly generating a flow of air, a filter disposed on a flow path of the air that forcibly flows by the blower fan, and a vibration actuator disposed on a side of the filter. The method for controlling an air-conditioner includes disposing a collection part under a filter of an air-conditioner, vibrating a vibration actuator disposed on a side of the filter, and separating the collection part from a lower side of the filter.
    Type: Application
    Filed: January 27, 2014
    Publication date: August 7, 2014
    Inventors: Jihoon JUN, Dongkeun YANG
  • Publication number: 20140215752
    Abstract: A vacuum system includes a filter cleaning mechanism which allows the filter to be cleaned without removal from the vacuum. This mechanism can include a carrying handle which is biased against the lid by a spring. The handle may be released from a vertical position, causing the handle to forcefully strike the lid and dislodge debris from the filter. The vacuum may include a spark arrestor disposed around the filter. The spark arrestor encloses the filter and surrounds the filter sides with a metal screen. The spark arrestor has holes formed in the bottom around the outer perimeter of the filter so that debris which is dislodged from the filter falls through the holes and into the vacuum canister.
    Type: Application
    Filed: December 31, 2013
    Publication date: August 7, 2014
    Inventors: Spencer Loveless, Kyle Alan Bjork
  • Patent number: 8615844
    Abstract: A dust filter for filtering dust out of an air stream has a filter membrane pleated into a row of pleats. A pleat deflector is movably suspended for moving along the row of pleats for cleaning the filter membrane. The deflector has a free end extending between the pleats when the deflector and the pleats are in undeflected condition, such that when the deflector is moved along the row of pleats, the pleats are deflected and released in succession along the row. The deflector includes a flexible plate of which at least a portion between the suspension and the free end has a width transverse to the direction of movement of the deflector, where the width decreases with the distance to the suspension.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: December 31, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Margarita Zwanette Van Raalte, Thelma Fernandina Geusebroek-Oskam, Paulus Hermanus Van Wolferen, Akko Wolters
  • Patent number: 8529661
    Abstract: A method and apparatus for removing fine particulate matter from a fluid stream without interrupting the overall process or flow. The flowing fluid inflates and expands the flexible filter, and particulate is deposited on the filter media while clean fluid is permitted to pass through the filter. This filter is cleaned when the fluid flow is stopped, the filter collapses, and a force is applied to distort the flexible filter media to dislodge the built-up filter cake. The dislodged filter cake falls to a location that allows undisrupted flow of the fluid after flow is restored. The shed particulate is removed to a bin for periodic collection. A plurality of filter cells can operate independently or in concert, in parallel, or in series to permit cleaning the filters without shutting off the overall fluid flow. The self-cleaning filter is low cost, has low power consumption, and exhibits low differential pressures.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: September 10, 2013
    Assignee: Afognak Native Corporation
    Inventors: James P. Diebold, Arthur Lilley, Kingsbury Browne, III, Robb Ray Walt, Dustin Duncan, Michael Walker, John Steele, Michael Fields
  • Patent number: 8470063
    Abstract: A chimney filter system featuring two or more filter housings mounted atop an industrial chimney stack and a reservoir fluidly connected to the lower filter housing via a first drain pipe that allows water to flow from the lower filter housing to the reservoir. The reservoir allows contaminants in the water to collect on the bottom surface of the reservoir. A second drain pipe is fluidly connected to the reservoir via a pump. The pump and second drain pipe deliver water from the reservoir to the upper filter housing.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: June 25, 2013
    Inventor: Hector Fernando Erazo Ortega
  • Publication number: 20130092028
    Abstract: A device and method for cleaning baghouse filters using a shock wave vortex is disclosed. In one embodiment, high pressure fluid enters the housing of the device through an inlet tube in axial alignment with a resonance chamber within the housing. The high pressure fluid enters and exits a resonance chamber causing a collision with the fluid from the inlet tube to generate a shock wave. The shock wave is directed downward by the housing through the lower opening of the housing and towards a baghouse filter as a ring-shaped shock wave vortex. The ring-shaped shock wave vortex concentrates cleaning energy along the side material of the baghouse filter.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 18, 2013
    Applicant: General Electric Company
    Inventors: Tian Xuan Zhang, David Michael Chapin
  • Publication number: 20130047854
    Abstract: A powder cyclone separator for use in a powder coating system is formed in two separate and separable sections. An upper section is mounted on a first frame and remains stationary. A lower section is mounted on a second frame that is movable laterally away from the first frame so that an operator has more ready access to clean interior surfaces of the upper section. Optionally, actuators may be provided to raise and lower the cyclone lower section with respect to the cyclone upper section. Optional alignment means are presented for aligning the cyclone upper and lower sections. A control mechanism may be mounted on the second frame which includes a switch that is operable to raise and lower the lower section with respect to the upper section. This design allows an operator to see and verify that virtually all internal surfaces of the cyclone have been cleaned.
    Type: Application
    Filed: October 31, 2011
    Publication date: February 28, 2013
    Applicant: NORDSON CORPORATION
    Inventors: Larry C. Jancik, William C. Coomer, III, Greg Dawson, Michael Thomas, Francis Patrick Mohar
  • Publication number: 20120247325
    Abstract: Embodiments provide methods, apparatuses, and articles of manufacture for filtering particulates from an airflow directed at a heat exchanger. A blade may gather the filtered particulates. The gathered particulates may then be exhausted.
    Type: Application
    Filed: March 29, 2011
    Publication date: October 4, 2012
    Inventor: Mark David Senatori
  • Patent number: 8241398
    Abstract: The invention provides methods and apparatuses for removing aerosols and, in some cases, vapor phase contaminants, such as mercury, from a gas stream. One method is directed to the removal of additional aerosols from a gas stream from which aerosols have previously been removed by using a screen in combination with a primary aerosol collection device. Another method is directed to the removal of both aerosols and vapor phase contaminants by using a sorbent in combination with a screen. Another method is directed to the removal of vapor phase contaminants by using a catalyst to convert the contaminant to a form that is more easily removed from the gas stream and optionally injecting a chemical to increase the rate of conversion. The invention also provides various apparatuses for use in performing the various methods of the invention.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: August 14, 2012
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Mark Simpson Berry, Ramsay Chang
  • Publication number: 20120180665
    Abstract: Disclosed herein is a ceiling embedded type air conditioner having a filter cleaning device to clean a filter. The filter cleaning device includes a cleaning unit to remove dust from the filter and a dust storage unit to store the dust removed by the cleaning unit. The filter may automatically and periodically be cleaned by the cleaning unit and the removed dust may be stored in the dust storage unit, which eliminates a need to separate and clean the filter.
    Type: Application
    Filed: January 10, 2012
    Publication date: July 19, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Youl JEONG, Jin Wook YOON, Sin Ae KIM, Na Ri LEE
  • Patent number: 8167981
    Abstract: A filter assembly for mechanically removing silicon monoxide during a crystal growth run having a filter housing, a filter mounting plate attached to the filter housing, a sweep plate attached to the filter housing, a plurality of filter elements attached to the filter mounting plate, and a plurality of ring-shaped brushes mounted to the sweep plate, wherein at least one of the plurality of ring-shaped brushes surrounds each of the plurality of filter elements.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: May 1, 2012
    Assignee: SPX Corporation
    Inventor: Richard Webb
  • Patent number: 8167964
    Abstract: A cyclonic chamber for use in air filtration devices. The chamber includes an apex opposite a base with sidewalls extending therebetween. The cyclonic chamber is preferably parabolic in cross-section or tubular with a hemi-spherical cap. The base contains an outflow passage and a conical filter extending therefrom. An inflow passage is provided proximate the apex. The inflow and outflow passages are parallel but not aligned. The chamber interior is smooth. The smooth interior and offset relationship of the inflow and outflow passages causes air to take a cyclonic path between the inflow passage and the filter. Debris in the airstream is pushed outward—away from the filter—by centripetal force. Eddies form proximate the base. Debris escapes the airstream there, where it either remains or, depending upon the chamber's orientation relative to gravity, falls back into the airflow where it is again directed away from the filter.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: May 1, 2012
    Inventor: Lau Ying Wai
  • Patent number: 8048207
    Abstract: A conduit may be used to deliver a pressurized fluid to a cell of a diesel particulate filter to clean the cell. The pressurized fluid may remove particulate matter from the cell. The conduit may be moved within the cell to dislodge particulate matter within the cell. The conduit may be manually or automatically inserted into the cell.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: November 1, 2011
    Assignee: Cleaire Advanced Emission Controls, LLC
    Inventors: Michael Streichsbier, Juston Smithers, Bradley L. Edgar
  • Patent number: 8048205
    Abstract: A lint filter device for an airflow in a tumble dryer, comprising an endlessly circulating element, arranged around at least two deflector elements and positioned such as to be crossed by the airflow. The circulating element has an upper edge and a lower edge and first engaging elements are arranged on at least one of the two edges which, on opening a loading door of the tumble dryer may come to cooperate with at least one second engaging element, arranged inside the tumble dryer such that, on the opening process of the loading door, the circulating element may be automatically moved in a circulating direction and may be passed across at least one device for the removal of lint from the circulating element. The invention further relates to a method for cleaning such a lint filter device.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: November 1, 2011
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventor: Hartmut Schaub
  • Publication number: 20110259193
    Abstract: A conduit may be used to deliver a pressurized fluid to a cell of a diesel particulate filter to clean the cell. The pressurized fluid may remove particulate matter from the cell. The conduit may be moved within the cell to dislodge particulate matter within the cell. The conduit may be manually or automatically inserted into the cell.
    Type: Application
    Filed: June 21, 2011
    Publication date: October 27, 2011
    Applicant: CLEAIRE ADVANCED EMISSION CONTROLS, LLC
    Inventors: Michael Streichsbier, Juston Smithers, Bradley L. Edgar
  • Publication number: 20110209617
    Abstract: The invention refers to a filter for an exhaust air box (2) between a space (1) containing powder mixed air and an outlet opening (2a), and where the filter is arranged to be passed by a flow of exhaust air, and to thereby capture the major part of powder carried in the flow of exhaust air, whereby the filter incorporates a portion (10) consisting of a multi-stage bed of balls of light expanded clay (10a) arranged on a grate-formed carrier (9a), the openings of which are of a size 9 which allows the carrier (9a) to serve as base for the balls (10a) without letting individual balls pass, and by which a network of labyrinth-formed passages mutually between the balls (10a) and between the balls (10a) and the grate-formed carrier (9a). The invention also refers to a method for cleaning such filter material, which incorporates tumbling of the material.
    Type: Application
    Filed: October 14, 2009
    Publication date: September 1, 2011
    Applicant: PIVAB INTERNATIONAL AB
    Inventor: Ronny Pihlblad
  • Publication number: 20110120312
    Abstract: A method and apparatus for removing fine particulate matter from a fluid stream without interrupting the overall process or flow. The flowing fluid inflates and expands the flexible filter, and particulate is deposited on the filter media while clean fluid is permitted to pass through the filter. This filter is cleaned when the fluid flow is stopped, the filter collapses, and a force is applied to distort the flexible filter media to dislodge the built-up filter cake. The dislodged filter cake falls to a location that allows undisrupted flow of the fluid after flow is restored. The shed particulate is removed to a bin for periodic collection. A plurality of filter cells can operate independently or in concert, in parallel, or in series to permit cleaning the filters without shutting off the overall fluid flow. The self-cleaning filter is low cost, has low power consumption, and exhibits low differential pressures.
    Type: Application
    Filed: November 15, 2010
    Publication date: May 26, 2011
    Applicant: Community Power Corporation
    Inventors: James P. Diebold, Arthur Lilley, Kingsbury Browne, III, Robb Ray Walt, Dustin Duncan, Michael Walker, John Steele, Michael Fields
  • Patent number: 7833320
    Abstract: A method and apparatus for removing fine particulate matter from a fluid stream without interrupting the overall process or flow. The flowing fluid inflates and expands the flexible filter, and particulate is deposited on the filter media while clean fluid is permitted to pass through the filter. This filter is cleaned when the fluid flow is stopped, the filter collapses, and a force is applied to distort the flexible filter media to dislodge the built-up filter cake. The dislodged filter cake falls to a location that allows undisrupted flow of the fluid after flow is restored. The shed particulate is removed to a bin for periodic collection. A plurality of filter cells can operate independently or in concert, in parallel, or in series to permit cleaning the filters without shutting off the overall fluid flow. The self-cleaning filter is low cost, has low power consumption, and exhibits low differential pressures.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: November 16, 2010
    Assignee: Community Power Corporation
    Inventors: James P. Diebold, Arthur Lilley, Kingsbury Browne, III, Robb Ray Walt, Dustin Duncan, Michael Walker, John Steele, Michael Fields
  • Publication number: 20100263536
    Abstract: A filter assembly for mechanically removing silicon monoxide during a crystal growth run having a filter housing, a filter mounting plate attached to the filter housing, a sweep plate attached to the filter housing, a plurality of filter elements attached to the filter mounting plate, and a plurality of ring-shaped brushes mounted to the sweep plate, wherein at least one of the plurality of ring-shaped brushes surrounds each of the plurality of filter elements.
    Type: Application
    Filed: April 21, 2009
    Publication date: October 21, 2010
    Applicant: SPX Corporation
    Inventor: Richard Webb
  • Publication number: 20100224065
    Abstract: A device for filtering a gas stream, having a vessel partitioned into a first stage and a second stage, with an opening between stages. A filter element is positioned in the opening, with ends of the filter element extending into the first and second stages. The first member is removable from the second member while the filter element is positioned in the opening, to allow for replacement with a new clean member.
    Type: Application
    Filed: March 3, 2009
    Publication date: September 9, 2010
    Inventors: Alan L Clarke, John W. Clarke, Timtothy J. Chisholm
  • Publication number: 20090183633
    Abstract: An apparatus comprising a filter comb, having a body portion is provided. The filter comb may be substantially ring shaped and may have a center which is hollow. The filter comb may have a plurality of inner projections each of which project towards the center of the filter comb. The plurality of inner projections may be spaced out substantially uniformly along an inner ring of the filter comb. The diameter of the filter comb may be approximately five and one half to ten inches. The filter comb may be made of plastic. There may be a gap between each of the plurality of inner projections and an adjacent inner projection and wherein the gap may be less than 0.075 inches.
    Type: Application
    Filed: December 24, 2007
    Publication date: July 23, 2009
    Inventors: Marc I. Schiller, Peter Gayer
  • Publication number: 20090158933
    Abstract: A lint filter device for an airflow in a tumble dryer, comprising an endlessly circulating element, arranged around at least two deflector elements and positioned such as to be crossed by the airflow. The circulating element has an upper edge and a lower edge and first engaging elements are arranged on at least one of the two edges which, on opening a loading door of the tumble dryer may come to cooperate with at least one second engaging element, arranged inside the tumble dryer such that, on the opening process of the loading door, the circulating element may be automatically moved in a circulating direction and may be passed across at least one device for the removal of lint from the circulating element. The invention further relates to a method for cleaning such a lint filter device.
    Type: Application
    Filed: October 11, 2006
    Publication date: June 25, 2009
    Applicant: BSH Bosch und Siemens Hausgerate GmbH
    Inventor: Hartmut Schaub
  • Patent number: 7410529
    Abstract: According to an exemplary embodiment of the present disclosure, a system for removing matter from a filtering device of a work machine includes a gas pressurization assembly. An element of the gas pressurization assembly is removably attachable to a first orifice of the filtering device without removing the filtering device from a work machine to which the filtering device is connected. The system also includes a heat source fluidly connected to the gas pressurization assembly.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: August 12, 2008
    Assignee: Caterpillar Inc.
    Inventors: Cheryl Lynn Sellers, David Thaler, Mark T. Grimm, Jeremy Trethewey, Natalie Noel Vanderspiegel, Richard A. Crandell, Dong Fei, Roger A. Hudson, Mark Alan Gasper, Herbert DaCosta, Eric Charles Fluga, Hemant Prasad Mallampalli, Bruce Frazier, Matthew Fletcher
  • Patent number: 7351269
    Abstract: A brush configured to move repeatedly over a vacuum filter. The brush will remove dust particles to prevent them from clogging the filter. In the preferred embodiment, the brush is mounted on a revolving shaft. As the shaft turns it moves the bristles of the brush over the surface of the filter, whereby dust particles may be dislodged. In one embodiment, the shaft is attached to the vacuum motor and is turned directly by the motor. In this embodiment a speed reducer may be employed to slow the rate of rotation of the brush. In another embodiment, a turbine is attached to the shaft. The turbine is placed in the path of the air stream moving through the vacuum. The air passing through the turbine cause it and the shaft to rotate, thereby reducing the load on the motor.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: April 1, 2008
    Inventor: Lau Kwok Yau
  • Publication number: 20080006155
    Abstract: A method for cleaning a diesel particulate filter by loosening and removing ash from a filter passage in a diesel particulate filter. The steps include providing a diesel particulate filter containing ash within the filter passages, providing a particulate filter cleaning device, and inserting the particulate filter cleaning device into the filter passages. The steps also include moving the particulate filter cleaning device within the filter passage to loosen the ash particles, removing the particulate filter cleaning device from the filter passage, and removing the loosened ash particles from the filter.
    Type: Application
    Filed: July 7, 2006
    Publication date: January 10, 2008
    Inventors: Cheryl L. Sellers, Jade M. Katinas, David W. Painter
  • Patent number: 7282155
    Abstract: A device for filtering a fluid includes a fiber housing having an inlet end with at least one inlet and an outlet end with at least one outlet. The fiber housing surrounds and defines an outer bound for a plurality of fibers extending longitudinally in the fiber housing between the inlet end and the outlet end, whereby longitudinally extending interspaces is provided between the fibers, with the interspaces defining a plurality of flow passages for the fluid. At least part of the fiber housing is formed of a flexible membrane surrounding the fibers, and a compression tool is provided for creating a pressure on an outer surface of the flexible membrane thereby compressing the fibers in a radial direction at least one location along the length of the fibers.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: October 16, 2007
    Assignee: Fibra Limited
    Inventor: Bo Boye
  • Patent number: 7276108
    Abstract: A filter device. The filter device comprises a first shaft, a second shaft separated from the first shaft by a predetermined distance, a filter looped around the first shaft and the second shaft and moved as the first and the second shafts rotate, and a brush contacting the filter. The brush removes filtered matter from the filter screen when an electronic device (projector) is started.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: October 2, 2007
    Assignee: BENQ Corporation
    Inventors: Hung-Jen Wei, Tzu-Huan Hsu, Shen-Chang Lu
  • Publication number: 20040118283
    Abstract: A filter system and a method for cleaning a gas laden with powder particles, in particular for a powder coating apparatus. At least one filter element is arranged between a crude gas chamber and a clean gas chamber. A first gas discharge device directs a gas stream from the crude gas chamber through the filter element into the clean gas chamber. A shut-off device interrupts the first gas stream through the filter element, and a second or cleaning gas discharge device directs a cleaning gas stream through the filter element into the crude gas chamber. A vibration device vibrates and/or shakes the filter element to dislodge powder from the filter element.
    Type: Application
    Filed: September 30, 2003
    Publication date: June 24, 2004
    Applicant: Nordson Corporation
    Inventor: Uwe Hering
  • Patent number: 6695894
    Abstract: The present invention provides a method and apparatus for removing trace contaminants from a gas stream or flue gas. In one embodiment, the present invention an apparatus for removing a trace contaminant from a gas stream, comprising a gas duct configured to receive a gas stream comprising a trace contaminant; a plurality of substrates disposed within the gas duct; a trace contaminant sorbent disposed on at least a portion of each of the substrates; an isolation device for separating the portion of each of the substrates from the gas stream; and a regenerator for regenerating the trace contaminant sorbent. In another embodiment, the present invention provides a method for removing a trace contaminant from a gas stream.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: February 24, 2004
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Ramsay Chang, Sharon Sjostrom
  • Patent number: 6627166
    Abstract: The invention concerns a device for filtering gas comprising a microporous or microfibrous adsorbent filter (6) and means for forcing an air flow between an exhaust hood (2) and outlet duct (3) for the filtered air. The invention is characterized in that it comprises liquid spraying means (18) and centrifuging means arranged between the spray means and the filtered gas outlet. The particles wetted by the sprayer are blocked by the internal rotary filter and discharged with the carrier liquid towards an external container (10).
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: September 30, 2003
    Inventor: François Simon
  • Patent number: 6616734
    Abstract: A method and apparatus for separating nanometer-sized particles of a powder.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: September 9, 2003
    Assignee: Nanotek Instruments, Inc.
    Inventor: Jean H. Liu
  • Patent number: 6605131
    Abstract: An air induction system with active noise control includes a self-cleaning air filter that is integrated within an air intake housing. The self-cleaning air filter filters out contaminants such as dust and dirt particulates from air flowing through the intake housing. The self-cleaning filter is powered and controlled by the same electronic unit that is used to power the active noise control system.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: August 12, 2003
    Assignee: Siemens VDO Automotive Inc.
    Inventors: James K. Vanderveen, Ian R. McLean
  • Patent number: 6602328
    Abstract: A gas turbine suction air filter is provided wherein, despite a large capacity, dust is easily removed by an ultrasonic washer. A gas turbine suction air filter (1) has a box-like frame member (3) and a filter cloth (5) contained in the frame member (3). The frame member (3) is made of a metal material, preferably a stainless steel. The filter cloth (5) is formed having many pleats so that many folded faces (7) are formed. No intervening member is provided between adjacent folded faces (7, 7), with only a space being arranged there. The filter cloth (5) is a non-woven fabric of a synthetic resin fiber, preferably a polypropylene fiber. While this filter (1) has a large capacity, an ultrasonic wave reaches the entire filter cloth (5) when the filter (1) is washed by an ultrasonic washer.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: August 5, 2003
    Assignees: Mitsubishi Heavy Industries, Ltd., Kawasaki Prime Mover Engineering Co., Ltd.
    Inventors: Yoshiyuki Doi, Toyosei Aota, Katsutoshi Okuno, Shigeru Maehata, Kenji Isohasi, Tatsuo Adachi, Satosi Hara
  • Publication number: 20030047076
    Abstract: A method and apparatus for separating nanometer-sized particles of a powder.
    Type: Application
    Filed: September 10, 2001
    Publication date: March 13, 2003
    Inventor: Jean H. Liu
  • Patent number: 6517612
    Abstract: This invention is directed to a continuously cleanable, high performance filtration apparatus and a method for using the apparatus. The apparatus is a radial inflow centrifugal filtration device, which includes a filter element located within a chamber and rotatably coupled to a filtered fluid outlet in a bulkhead that abuts the chamber. The filter element is generally tubular, its side-walls encircling and, thus, defining an interior plenum. The filter element side-walls incorporate a filter media, preferably a laminated microporous membrane filter media. The filter element is rotatably coupled at the filtered fluid outlet by a seal which can maintain a seal as filter element rotates. Additionally, the device can include a boundary layer momentum transfer device made up of a plurality of stacked annular disks having central openings, each disk separated from adjacent disks by a desired gap. The central openings define a cavity in which the filter element is mounted.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: February 11, 2003
    Assignee: Gore Enterprise Holdings, Inc.
    Inventors: Steven Crouch, Steve Wright, Jeffrey Storm, Wai S. Poon, Stephen K. Stark, Daniel W. Thorpe, Glenn R. Voshell
  • Publication number: 20020124729
    Abstract: A method of using vacuum-cleaner filters includes mounting a cylindrical-shaped filter cartridge coaxially on a rotatable spindle. Then air is drawn radially through a filter material wall of the filter cartridge. Periodically, the cartridge filter on the spindle is spun to dislodge any debris entrapped in the filter material by centrifugal force. Air flow is selectively drawn or pushed radially through a filter material wall of the filter cartridge. A clutch disposed between a motor and the spindle is used to periodically spin the cartridge filter on the spindle to dislodge any debris entrapped in the filter material by centrifugal force. Preferably, a motor that can be run in either a forward direction or a reverse direction is used.
    Type: Application
    Filed: March 8, 2001
    Publication date: September 12, 2002
    Inventor: David Edmond Dudley
  • Patent number: 6238464
    Abstract: A device for separating particles contained in a gas stream and the associated process use a spongy type separator to process gas streams containing liquid or solid particles of a size substantially smaller than one micrometer. The separator is advantageously made of a reticulated foam pierced with channels for the flow of the gas streams.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: May 29, 2001
    Assignees: Dullien Francis A.L., Institut Francais du Petrole
    Inventor: Francis A. L. Dullien
  • Patent number: 6176901
    Abstract: In a dust precipitation device for filtration of dust created during crystal growth from a melt, cold surfaces are provided as contact surfaces as a part of the gas control geometry, to which the dust can adhere and thus become separated from the transport gas pumped from the processing chamber. Due to cooling of the flow contact surfaces, for example, by a coolant that is supplied via coolant lines blockable by valves, the dust is filtered very effectively from the transport gas. The extraction device has several precipitation chambers located one behind the other for the passage and filtering of the dust from the transport gas. The individual precipitation chambers are connected to each other so that they can be individually removed from or inserted into the precipitation device, for example, manually.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: January 23, 2001
    Assignee: Leybold Systems GmbH
    Inventor: Johann Scholler
  • Patent number: 6113674
    Abstract: An adsorption bed arrangement includes a plurality of adsorption elements, a housing, and a gasket member. Each of the adsorption elements has adsorption media contained within a respective element. Each of the adsorption elements are selectively openable to provide access to the adsorption media. The housing defines an interior, a plurality of inlet openings, and a plurality of outlet openings. The plurality of adsorption elements are positioned within the housing interior. The housing is selectively openable to provide access to the plurality of adsorption elements. The gasket member is between the housing and the adsorption elements. A method for changing filtering media in an adsorption apparatus includes steps of removing an access panel from an adsorption bed housing to expose a cover member covering an end of an adsorption element; removing the cover member from the end of the adsorption element to expose filtering media within the element; and pouring the filtering media from the element.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: September 5, 2000
    Assignee: Donaldson Company, Inc.
    Inventors: Kristine M. Graham, Paul Peterson, Donald R. Monson, Jarren B. Mills, Timothy H. Grafe
  • Patent number: 6090183
    Abstract: A method for processing an exhaust gas produced during manufacturing of semiconductor devices including the steps of introducing a thermally disintegrable or thermally oxidizable exhaust gas produced during manufacturing of semiconductor devices into a processing chamber; heating up this exhaust gas in the processing chamber so that the exhaust gas undergoes thermal disintegration or thermal oxidation and becomes harmless and easy to handle for further processing; capturing fine particles of solid oxides or the like suspended inside the processing chamber with a sweeper provided inside the processing chamber; and sweeping fine particles of solid oxides or the like accumulated on a wall of the processing chamber with the sweeper.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: July 18, 2000
    Inventor: Toshio Awaji
  • Patent number: 6036750
    Abstract: A secondary separator stage for separating material conveyed in a fluid stream. A material collecting receptacle includes an inlet conduit and an exhaust vent. The stream of fluid with materials flow via the inlet conduit into the receptacle. An exhauster located upstream on the inlet conduit removes the majority of the fluid within the fluid stream prior to the stream flowing into the receptacle. The remaining portion of the fluid entering the receptacle is removed via an exhaust vent. A rotating plate allows the fluid in the receptacle to pass therethrough but blocks passage of any conveyed materials.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: March 14, 2000
    Assignee: Air Equipment & Engineering, Inc.
    Inventor: Donald G. Cox
  • Patent number: 5900043
    Abstract: Electrostatic filter in which the enclosure (2) is fitted with a flexible membrane (12) , behind which an acoustic wave generator (14) is placed and which vibrates the gaseous contents of the filter to detach retained dust and clean the filter.
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: May 4, 1999
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Jean-Paul Grandjean, Jean-Raymond Bernard, Guy Pilot