Plural Damper Panel Patents (Class 454/351)
  • Patent number: 12180975
    Abstract: The present invention relates to a fruit or vegetable shaped fan for dispersing airborne eye irritants that are released during cutting fruits or vegetables. The fan includes a base that is wedge-shaped, an air inflow collimator that is fruit or vegetable shaped having an open front end, an internal frame that is configured to provide minimal abatement to airflow through the air inflow collimator, a motor mount that secures a motor, a fan blade that attaches to the motor, and a grill that attaches to the open front end of the air inflow collimator. The fan is configured to disperse airborne eye irritants away from a user's eyes. Airborne eye irritants are released when certain fruits and vegetables are chopped or otherwise cut. Such fruits and vegetables that can release airborne eye irritants when cut include onions, peppers, and certain other fruits and vegetables.
    Type: Grant
    Filed: March 28, 2024
    Date of Patent: December 31, 2024
    Inventor: Glenn B. Smith
  • Patent number: 12157082
    Abstract: The present disclosure relates to a removable filter system for removably coupling a filter unit to an air supply unit provided in a boiler. The filter unit is detachably coupled to the air supply unit, so that after removing the contaminated filter unit coupled to the air supply unit, a new filter unit can be coupled to the air supply unit or the existing filter unit can be reused after removing contaminants remaining in the filter.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: December 3, 2024
    Inventor: Jin Min Choi
  • Patent number: 11946488
    Abstract: The present invention relates to a fruit or vegetable shaped fan for dispersing airborne eye irritants that are released during cutting fruits or vegetables. The fan includes a base that is wedge-shaped, an air inflow collimator that is fruit or vegetable shaped having an open front end, an internal frame that is configured to provide minimal abatement to airflow through the air inflow collimator, a motor mount that secures a motor, a fan blade that attaches to the motor, and a grill that attaches to the open front end of the air inflow collimator. The fan is configured to disperse airborne eye irritants away from a user's eyes. Airborne eye irritants are released when certain fruits and vegetables are chopped or otherwise cut. Such fruits and vegetables that can release airborne eye irritants when cut include onions, peppers, and certain other fruits and vegetables.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: April 2, 2024
    Inventor: Glenn B. Smith
  • Patent number: 10631432
    Abstract: An air intake control system can consist of an aero-acoustic assembly positioned within an enclosure. The aero-acoustic assembly may have an intake occupied by a plurality of louvers with each of the plurality of louvers configured to move between open and closed positions in response to airflow passing through the intake.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: April 21, 2020
    Assignee: Seagate Technology LLC
    Inventors: Shankar Gopalakrishna, Anil Koyad Choyikkunnil, Yogeesha Manjunathaiah, Saju Cheeran Verghese Francis, Y. Suresh Reddy
  • Patent number: 10352584
    Abstract: A ventilation fan comprises a fan, a cover module and a filter. The fan includes an inlet and an outlet. The cover module is disposed at the inlet and includes a main body and a cover. The main body includes an opening and fixing portions. The opening is disposed corresponding to the inlet. The periphery of the opening is configured with two opposite slideways. The fixing portions are disposed on the main body. The cover and the main body are disposed separately to form a gap and the cover includes connecting portions correspondingly connected to the fixing portions. The filter detachably slides on the slideways to be disposed at the opening. The size of the cover is larger than that of the opening. The air flows to the filter and inlet through the gap and flows out of the outlet through the fan.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: July 16, 2019
    Assignee: Delta Electronics, Inc.
    Inventors: Yu-Hsiang Huang, Kuan-Chung Cheng, Chih-Hua Lin
  • Patent number: 10182550
    Abstract: A climate control apparatus for a cleanroom livestock building includes a supply air unit, comprising a supply air conveyor device, an exhaust air unit comprising an exhaust air conveyor device, a temperature sensor, an air pressure sensor, and a climate control unit. The climate control apparatus is adapted to reduce the volume of air conveyed by the exhaust air unit whenever the air pressure detected by the air pressure sensor falls below a predetermined lower air pressure limit value, increase the volume of air conveyed by the exhaust air unit whenever the air pressure detected by the air pressure sensor exceeds a predetermined upper air pressure limit value, and increase the volume of air conveyed with the supply air unit when the temperature detected by the temperature sensor exceeds a predetermined first upper temperature limit value.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: January 22, 2019
    Assignee: BIG DUTCHMAN INTERNATIONAL GbmH
    Inventor: Armin Schwarz
  • Patent number: 8851831
    Abstract: An electronic device includes an air dam module. The air dam module includes a frame defining a vent, a first rotating member, a second rotating member, and two third rotating members. The first rotating member is rotatably connected to a surface bounding the vent, to vertically block a lower half of the vent by its gravity. The second rotating member is rotatably connected to the surface bounding the vent. The third rotating members are rotatably connected to opposite ends of the second rotating member. The second and third rotating members vertically block an upper half of the vent by their gravities.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: October 7, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Zheng-Heng Sun
  • Patent number: 8414368
    Abstract: A damper assembly for use with an axial fan to prevent air from entering the discharge side of the fan when the fan is at idle. The damper assembly includes a damper door having multiple sections. The sections are able to pivot independently in response to the air flow created by the fan to minimize airflow resistance when the fan is operating.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: April 9, 2013
    Assignee: Munters Corporation
    Inventors: Daniel G. Hansen, Christopher Adam Hause
  • Patent number: 8366417
    Abstract: A fan housing capable of anti-backflow includes a frame and a plurality of anti-backflow sheets. The frame has a plurality of fixing parts disposed at an opening of an outlet side of the frame. The anti-backflow sheets are respectively pivoted to the fixing parts and cover the opening on the outlet side of the frame. A fan having the fan housing capable of anti-backflow is also disclosed.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: February 5, 2013
    Assignee: Delta Electronics, Inc.
    Inventors: Jui-Ting Fan, Cheng-Shu Yu, Peng-Chu Tao
  • Patent number: 8272475
    Abstract: A sound attenuator for low frequencies in an air-conditioning duct of paper mills includes a sound attenuator frame insertable in the air-conditioning duct. At least one attenuator member operating according to the plate resonator principle has a first resonator plate, a framework, whereto the first resonator plate is attached by its inner surface, and a second plate, which is essentially parallel to the first resonator plate. The second plate is attached to the framework by its inner surface, whereby the second plate, the framework and the first resonator plate delimit at least one attenuator unit. The first resonator plate, attached to the framework, is a steel plate and is attached to the framework by laser welding and the framework comprises a pressure balancing opening.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: September 25, 2012
    Assignee: Metso Paper, Inc.
    Inventors: Kalle Helenius, Henrik Pettersson
  • Patent number: 7070385
    Abstract: An efficient axial fan has a housing enclosure with a square inlet opening and a round outlet opening, a fan assembly with a drive motor and a propeller secured to a shaft and coupled thereto. The entrance of the fan housing is provided with a shutter assembly which is disposed horizontally or vertically across the square inlet opening and comprises a plurality of vanes including a central vane operated by a centrifugal shutter mechanism secured to one end of the propeller shaft, opposite to the propeller and adjacent to the central vane of the shutter assembly. The centrifugal shutter mechanism is normally provided with a hermetic housing comprising a pair of radial masses operatively connected via a pair of pivoting arms to an axial sliding reciprocating actuator which is disposed adjacent to the shutter central vane.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: July 4, 2006
    Inventor: Angelo Milana
  • Patent number: 6666762
    Abstract: A power assisted ventilation system for a conservatory of the type having a roof extending away from a wall or other supporting structure that is mountable where the roof meets the wall of other supporting structure has a back plate mountable to the wall or to a glazing panel support means already on the wall and an apertured cover securable to the back plate.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: December 23, 2003
    Assignee: Ultraframe (UK) Limited, Enterprise Works
    Inventor: Christopher Richardson
  • Patent number: 6454528
    Abstract: An intake and exhaust damper assembly has a motor and fan assembly pivotally mounted for movement toward and away from a louvered rotatable blade damper.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: September 24, 2002
    Inventor: Francis J. McCabe
  • Patent number: 6302782
    Abstract: An electric exhaust fan has generally conventional components and is normally mounted in a window pane in known manner. The fan has a door, consisting of two rotatably mounted shells 14 and 15, that closes off a front face 11 of the fan. The door is opened and closed by a motor 24 that has a drive gear 23. The drive gear 23 engages gearing 14A and 15A formed on respective side walls of the shells. Opposite side walls of the shells have gearing 14B and 15B that mesh with one another. Also, the door remains open, once it has been fully opened, without requiring to supply power to the motor 24 to keep the door open.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: October 16, 2001
    Inventor: Chung Lun Yip
  • Patent number: 6149698
    Abstract: An apparatus, for installing a ventilation fan, highly effective for preventing dust, gas or the like from coming in a room has been provided by the present invention. An apparatus 1 for installing a ventilation fan comprises a L-shaped housing 5, for fixing a ventilation fan 3 therein, having an inside opening 7 positioned inside a wall W, and an outside opening which looks down and is positioned outside the wall W. The inside opening 7 is provided with a filter 11 for exhaust able to be slide vertically, and able to be taken in and out from the housing 5. Further, the inside opening 7 is covered with a metallic lid 13 able to be open or shut. A filter 15 for absorbed air is provided near the outside opening 9. The filter 15 is able to slide horizontally. The ventilation fan F is rotatable clockwise and counterclockwise. The filter 15 for absorbed is installed in absorbing air. The filter 11 for exhaust is installed in exhausting air.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: November 21, 2000
    Inventor: Kiyomasa Uehara
  • Patent number: 6010307
    Abstract: An aerodynamic-shaped propeller blade. The blade has a cross-section which is essentially an inverted pan-shape with an intermediate section, a leading edge section, and a trailing edge section which form concave and convex surfaces. The trailing edge has a flange doubled back toward the leading edge within the concave envelope.
    Type: Grant
    Filed: January 23, 1998
    Date of Patent: January 4, 2000
    Inventor: Francis J. McCabe
  • Patent number: 5735137
    Abstract: An air conditioner includes an air inlet, an air outlet, a heat exchanger, and a suction source for sucking-in air through the inlet and then discharging the air through the outlet after passing the air across the heat exchanger. Vanes are provided for opening and closing the inlet. A drive mechanism rotates the vanes about respective horizontal axes such that the vanes become opened by progressively greater amounts in a direction away form the suction source to expose progressively larger areas of the air inlet. This achieves a substantially uniform rate of air flow throughout the height of the air inlet.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: April 7, 1998
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jong-Lae Kim
  • Patent number: 5653632
    Abstract: A driving device which is automatically activated by detecting solar light and an automatic ventilation system utilizing the aforementioned driving device. An electric motor (21) is connected to relay switch (22), which is connected to limit switch (23) and light sensor switch (24). The limit switch (23) is connected between the relay switch (22) and the power supply and a manual main switch (25) between the light sensor switch (24) and the power supply. Normally when the main switch (25) is "on" and solar light exceeds the threshold, the light sensor detects it and the contact of the switch (24) changes to be activated. Electricity is then supplied to the relay switch (22) and the contact of the relay switch (22) also change to be activated. The electric motor is interlinked with a vent cover via the power transmission and the vent cover gradually begins to open.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: August 5, 1997
    Inventors: Taro Ogawa, Tomohiro Gohara
  • Patent number: 5294049
    Abstract: An adaptable, temperature-responsive, powered-fan, foundation ventilator apparatus includes a louver housing defining an air passageway, construction for selectively opening and closing the louver housing air passageway depending upon the temperature, a fan housing defining an air passageway communicating with the louver housing, structure for mounting a fan at the rear edge of the fan housing, a fan carried by the fan mounting structure, a fan orifice plate disposed across the air passageway of the fan housing and defining an orifice through the orifice plate, and a fan that includes a fan blade operatively disposed in the orifice of the orifice plate. The apparatus further includes a flexible elongated duct that connects the fan housing to locations which are obstructed from direct flow to the fan housing. The apparatus further includes a flexible adaptor hood which adjustably connects to the fan housing and to the flexible duct and is configured for easy storage in inventory.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: March 15, 1994
    Assignee: Temp-Vent Corporation
    Inventors: Timothy J. Trunkle, Paul M. Sarazen, Jr., Dennis A. Beam, Jr.