Including Automatic Control Means Patents (Class 454/239)
  • Patent number: 11527972
    Abstract: An actuator in a HVAC system includes a motor and a drive device driven by the motor. The drive device is coupled to a movable HVAC component for driving the movable HVAC component between multiple positions. The actuator includes an input connection configured to receive an input signal and a processing circuit coupled to the motor. The processing circuit is configured to determine whether the input signal is an AC voltage signal or a DC voltage signal. The processing circuit is configured to operate the motor using an AC motor control technique in response to determining that the input signal is an AC voltage signal and configured to operate the motor using a DC motor control technique in response to determining that the input signal is a DC voltage signal.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: December 13, 2022
    Assignee: Johnson Controls Technology Company
    Inventors: Robert K. Alexander, Gary A. Romanowich, Bernard P. Clement
  • Patent number: 11519629
    Abstract: An HVAC system includes a blower, a motor drive, and a controller. A benchmark rate of the flow of air provided by the blower and a corresponding benchmark power output of the motor drive associated with operation of the blower at a test condition are received. The controller determines a first motor drive frequency at which the motor drive is operating. Based on the benchmark rate and a comparison of the first motor drive frequency to the predefined motor drive frequency, a first rate of the flow of air provided by the blower is determined. At a later time, a current power output of the motor drive is determined during operation of the blower at the test condition. Based on a comparison of the current benchmark power output to the benchmark power output, an updated benchmark rate of the flow of air provided by the blower is determined.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: December 6, 2022
    Assignee: Lennox Industries Inc.
    Inventors: Rakesh Goel, Shiliang Wang
  • Patent number: 11512865
    Abstract: Disclosed are an air outlet structure, an air outlet method for an air conditioner, and the air conditioner. The air outlet structure may include: a main air outlet channel, a main air outlet, an auxiliary air outlet and an adjusting device; the main air outlet and the auxiliary air outlet are communicated with the main air outlet channel; the adjusting device is provided between the main air outlet channel and the auxiliary air outlet as to make the main air outlet channel send out air through the main air outlet and/or the auxiliary air outlet. With the above structure, the air conditioner may have a broad air supplying scope and a uniform air speed and supply the air to an entire plane, and comfort of the air conditioner may be improved. Thus, the problem that an existing air conditioner has non-uniform air outlet effect may be effectively solved.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: November 29, 2022
    Assignee: Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Xianlin Wang, Hui Zhang, Zhi Meng
  • Patent number: 11415333
    Abstract: A fresh air cooling and ventilating system can include a whole house fan for introducing fresh air into a building structure. The fresh air cooling and ventilating system can include a whole house fan and/or a controller. The controller can be operably in communication with an air conditioning system and coordinate the usage of the fresh air cooling and ventilating system and the air conditioning system to reduce overall energy consumption. The system can be automated to run with no or minimal user input.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: August 16, 2022
    Assignee: QC MANUFACTURING, INC.
    Inventors: Dana Charles Stevenson, Dane Stevenson, Dustin Martin Stevenson
  • Patent number: 11300306
    Abstract: A makeup air unit comprising a housing defining a compartment. The housing further defines at least one exhaust inlet for receiving air from an indoor space into the compartment and at least one exhaust outlet for passing air from the compartment to the atmosphere. The housing further defines at least one intake inlet and at least one intake outlet each extending into the compartment. The exhaust inlet and outlet are fluidly disconnected from the intake inlet and outlet. An air moving device overlies the intake outlet and is configured to transfer air from the compartment through the intake outlet into the work space. A flap switch unit is disposed in the compartment adjacent to the exhaust outlet and is configured to detect a flow of air through the exhaust inlet and to activate the air moving device in response to a detection of the flow of air.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: April 12, 2022
    Assignee: Z Line Kitchen and Bath LLC
    Inventor: Andrew Zuro
  • Patent number: 11280705
    Abstract: An air purification system is provided which includes measurement of a concentration of a target pollutant within the air. A gas sensor is used for sensing a concentration of the pollutant (although it will detect other pollutants as well due to cross-sensitivity). A filter is provided which selectively removes the target pollutant while having a significantly smaller effect in reducing other pollutants to which the sensor is cross-sensitive. A gas sensor response is obtained before filtering, a gas sensor response after filtering, and the sensitivity characteristics of the gas sensor to the pollutant are processed, thereby to determine a gas concentration of the pollutant in the air before filtering. In this way, the concentration measurement is better than a direct measurement with the gas sensor as a result of a low selectivity of the gas sensor.
    Type: Grant
    Filed: December 25, 2017
    Date of Patent: March 22, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Jacob Dijkstra, Timothy Van Der Graaf, Einte Holwerda
  • Patent number: 11280513
    Abstract: An arrangement and method for determining adjustment parameters for at least two components utilized in an HVAC system. The arrangement comprises at least one processor and is configured to receive information regarding a duct configuration comprising at least one duct. The processor is additionally configured to receive target values for a first flow parameter at first and second duct locations corresponding to locations of the first and second components. At least one measured value for a second flow parameter at a measuring location is received, and determined values for the second flow parameter at the first and second duct locations are resolved. First and second flow factors are determined, and first and second adjustment parameters may then be determined for the first and second components.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: March 22, 2022
    Assignee: Ilmastointimittaus Lind Oy
    Inventor: Lars-Eric Axel Lind
  • Patent number: 11268728
    Abstract: A ventilation system includes a plurality of ventilation devices, a sensor, a setting unit, and a transmitter-receiver. The sensor is attached to a predetermined ventilation device of the plurality of ventilation devices. The sensor detects a state of air. The setting unit sets, from the plurality of ventilation devices, a first ventilation device to which the sensor is to be attached, and a second ventilation device with which a detection signal of the sensor is to be shared. The transmitter-receiver receives the detection signal of the sensor and transmits the detection signal to control devices of the first and second ventilation devices. The first and second ventilation devices are set in the setting unit. Each of the control devices of the first and second ventilation devices controls an associated one of the ventilation devices based on the detection signal transmitted from the transmitter-receiver.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: March 8, 2022
    Assignee: Daikin Industries, Ltd.
    Inventors: Yoshitaka Matsugi, Tooru Fujimoto, Ryou Fujimoto, Kazuhiro Shioyama
  • Patent number: 11165111
    Abstract: A thermal barrier to maintain the temperature of a battery. The barrier includes elements with respectively cold and hot PCM materials, and elements, thermal isolators, arranged at least in case of some between two of the PCM material elements.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: November 2, 2021
    Assignee: Hutchinson
    Inventors: Fabrice Chopard, Cédric Huillet, Fanny Geffray, Dragisa Jovanovic
  • Patent number: 11156377
    Abstract: A ventilation system includes a plurality of ventilation devices, a sensor, a setting unit, and a transmitter-receiver. The sensor is attached to a predetermined ventilation device of the plurality of ventilation devices. The sensor detects a state of air. The setting unit sets, from the plurality of ventilation devices, a first ventilation device to which the sensor is to be attached, and a second ventilation device with which a detection signal of the sensor is to be shared. The transmitter-receiver receives the detection signal of the sensor and transmits the detection signal to control devices of the first and second ventilation devices. The first and second ventilation devices are set in the setting unit. Each of the control devices of the first and second ventilation devices controls an associated one of the ventilation devices based on the detection signal transmitted from the transmitter-receiver.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: October 26, 2021
    Assignee: Daikin Industries, Ltd.
    Inventors: Yoshitaka Matsugi, Tooru Fujimoto, Ryou Fujimoto, Kazuhiro Shioyama
  • Patent number: 11105524
    Abstract: A roof ventilation system operable based on environmental parameters is disclosed. The system includes a vent, a fan, a solar panel, a battery and a controller. The vent is positioned within a field of a roof, and includes a first opening configured to allow airflow between regions above and below the roof. The fan is positioned to generate an air flow through the vent. The solar panel is positioned on the roof in a location such that the solar panel receives solar radiation. The battery is electrically connected to the solar panel. The controller is in communication with the fan, and is configured to drive the fan based on at least one environmental parameter.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: August 31, 2021
    Inventor: Gregory S. Daniels
  • Patent number: 11092355
    Abstract: The invention generally relates to ventilation systems and methods, and more particularly to selectively configurable climate control systems and methods for use in data centers and the like. A device includes a support element and a plurality of ducts connected to the support element. The device also includes a manifold in fluid communication with each one of the plurality of ducts and a plurality of valves. Each respective one of the plurality of valves is associated with a respective one of the plurality of ducts. Moreover, there is at least one actuator operatively connected to the plurality of valves, which is structured and arranged to individually actuate each one of the plurality of valves.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: August 17, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Christopher J. Dawson, Vincenzo V. Diluoffo, Rick A. Hamilton, II, Michael D. Kendzierski
  • Patent number: 11029051
    Abstract: Described herein is a single unit optimizing controller (100) capable of operating any known type of heating, ventilation, air conditioning and refrigeration HVACR system (an HVACR system is denote by reference numeral (101)), which include all ACR systems. HVACR system (101) takes the form of an air conditioning unit. The controller includes a communications section (102) for communicating with one or more remote controller terminal in the form of a web application (103) and a control section (104). The air conditioning unit of HVACR system (101) includes at least one cooling unit having a compressor wherein the control section is operatively associated with HVACR system (101) for selectively activating or deactivating the at least one cooling unit based on one or more settings received from web application (103) via communications section (102).
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: June 8, 2021
    Inventor: Christopher James Rogerson
  • Patent number: 11015831
    Abstract: The present disclosure provides controls, apparatus, systems and methods for controlling a ventilation mechanism to manage relative humidity of an area. The controls, apparatus, systems and methods utilize sensed relative humidity information and one or more inputs to provide automatic and/or manual control of a ventilation mechanism in response to high humidity events within the area. The controls, apparatus, systems and methods provided herein automatically activate a ventilation mechanism through the use of sensed relative humidity information and user input. The controls, apparatus, systems and methods provided herein automatically deactivate a ventilation mechanism through the use of sensed relative humidity information and user input.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: May 25, 2021
    Assignee: LEVITON MANUFACTURING CO., INC.
    Inventors: Michael Ostrovsky, Marc Gallo, Paul Soccoli, Alfred Lombardi
  • Patent number: 11009299
    Abstract: A thermal barrier for helping to maintain a temperature in volumes and/or at least one internal structural component surrounded by the barrier. The barrier has a first component containing at least one phase change material (PCM) that changes its state at a first temperature, a second component containing a PCM that changes its state at a second temperature which is different from the first temperature, and a third, thermally insulating component that is disposed between the first and second components containing a PCM or outside the second component.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: May 18, 2021
    Assignee: Hutchinson
    Inventors: Fabrice Chopard, Cédric Huillet, Fanny Geffray
  • Patent number: 10830475
    Abstract: The present disclosure relates to a zoning system for climate control including a controller configured to operate the zoning system to supply conditioned air to a first zone of a plurality of zones through a first supply air damper to thermally charge the first zone. The controller is also configured to close the first supply air damper of the first zone and open a second supply air damper of a second zone of the plurality of zones after the first zone is thermally charged. The controller is further configured to operate the zoning system to draw the conditioned air from the first zone and supply the conditioned air to the second zone through the second supply air damper.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: November 10, 2020
    Assignee: Johnson Controls Technology Company
    Inventors: Brian D. Rigg, Shawn A. Hern, Andrew M. Boyd, Noel A. Grajeda-Trevizo, Cody J. Kaiser, Tom R. Tasker, Theresa N. Gillette, Jonathan A. Burns, Tyler P. McCune
  • Patent number: 10782042
    Abstract: Provided is a ventilation control apparatus (2) comprising: an in-home communication module configured to communicate with ventilators via an in-home network; an external communication module configured to communicate with an external server provided outside a building via an external network; a determination unit (77) configured to determine whether or not communication with the external server via the external communication module is available; a control determination unit (78) configured to determine a control method for the ventilators, based on a result of determination by the determination unit (77); and a ventilation operation control unit (76) configured to control the ventilators, based on the control method determined by the control determination unit (78).
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: September 22, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Naoyuki Funada, Masayuki Sasaki
  • Patent number: 10767873
    Abstract: An air processing system comprises an air purifier (10) and/or an air quality sensor (12). One or both is controlled (14), or else sensor information is interpreted, in dependence on activity status information received from a plurality of home appliances (16, 8, 20, 22). This enables the operational life time of components in system to be extended, specifically the sensors and/or air purifier filters. Alternatively or additionally, it enables the air quality sensor information to be interpreted more reliably.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: September 8, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Cornelis Reinder Ronda, Koray Karakaya, Michiel Johannes Jongerius
  • Patent number: 10690363
    Abstract: For air distribution or extraction, fan speed is controlled using modeling to account for venturi air valves. A minimum pressure for each venturi air valve is incorporated into the model. The pressure losses for various duct airpaths to terminal units is calculated based, in part, on the minimum pressure of any venturi valve. The fan set point or operation is established based on the highest needed pressure in the various airpaths connected with the fan.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: June 23, 2020
    Assignee: Siemens Industry, Inc.
    Inventors: James J. Coogan, Scott Johnson, Paul Fuson
  • Patent number: 10670284
    Abstract: A heat exchanging ventilation device includes supply air blower (8); exhaust air blower (9); a supply air blowing passage through which air to be delivered to indoor from outdoor by supply air blower (8) passes; a exhaust air blowing passage through which air to be delivered to the outdoor from the indoor by the exhaust air blower passes; heat exchange element (11) disposed at a position where both the supply air blowing passage and the exhaust air blowing passage pass and exchanging heat between air delivered by supply air blower (8) and air delivered by exhaust air blower (9); supply air damper (12) provided on supply air inlet (2) side of the supply air blowing passage; exhaust air damper (13) provided on exhaust air outlet (3) side of the exhaust air blowing passage; and circulation damper (14) provided at boundary portion (25) which separates the supply air blowing passage and the exhaust air blowing passage from each other.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: June 2, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kouji Iio, Kenichi Ishiguro, Toshihiko Hashimoto, Yasuhiro Suzuki
  • Patent number: 10460586
    Abstract: A sensing and lighting device includes a lighting fixture comprising a light emitting diode (LED) light source. The sensing and lighting device further includes a sensor to sense the air at the sensor, and a power source. The LED light source and the sensor are powered by the power source.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: October 29, 2019
    Assignee: Eaton Intelligent Power Limited
    Inventors: Kenneth Dale Walma, Nam Chin Cho, Ryan Lamon Cunningham
  • Patent number: 10433466
    Abstract: A mixing module may be used in a modular data center to provide cooling of air by mixing exterior environment air with warm air exhausted from information handling systems in other modules of the modular data center. The mixing module may include a mixing aisle that provides a low-impedance path for warm and cool air to mix and for a homogenous air mass for cooling IT equipment. The mixing aisle may be divided into two portions separated by dampers to allow for control over the mixing of air in the mixing aisle. The dampers in the mixing aisle, as well as dampers on an intake and exhaust from the mix module, may be controlled to obtain a desired temperature and/or humidity level.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: October 1, 2019
    Assignee: Dell Products L.P.
    Inventors: Mark Mcgrath Bailey, Trey S. Wiederhold, Tyler B. Duncan, Ty R. Schmitt
  • Patent number: 10359205
    Abstract: A control system, comprising one or more smoke sensors, each configured to measure a level of smoke at a location within a building and to output a smoke level signal based at least in part upon the measured level of smoke. A controller configured to receive the smoke level signals and to control an operation of one or more energy recovery ventilation systems in a first mode of operation to recover energy when the smoke level signal is below a predetermined value and in a second mode of operation to evacuate smoke when the smoke level signal is above the predetermined value.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: July 23, 2019
    Assignee: Air Distribution Technologies IP, LLC
    Inventors: Josiah Wiley, Michael G. Longman
  • Patent number: 10288305
    Abstract: A first ventilation apparatus of ventilation apparatuses which form a ventilation system includes: a first information transmission part (18a); a first information reception part (19a); and a first control part (17a). The first control part (17a) includes: a first total ventilation air volume determination part (20a); a first-ventilation-apparatus first air volume decision part (21a); and a first air volume detection part (22a).
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: May 14, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tetsuya Nagase, Toshikazu Yoshizawa, Hiroyuki Kanou, Shingo Takenawa, Tsuraki Nakajima, Masahiro Yamaguchi
  • Patent number: 9964470
    Abstract: Methods and apparatus for determining indoor air contaminant levels independent of outdoor contaminant levels. In one embodiment, an infinite geometric series is used to compute a true indoor air contaminant level in a room.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: May 8, 2018
    Assignee: Aircuity, Inc.
    Inventor: Gordon P. Sharp
  • Patent number: 9945571
    Abstract: A room pressure control system includes an air supply valve, an exhaust valve, and controller circuits. One of the controller circuits includes a room pressure correction control circuit that controls the valve operating as a room pressure control valve, between the air supply valve and the exhaust valve, so that the room pressure coincides with a set room pressure value; and processing circuitry that determines whether the room pressure easily fluctuates, determines whether the room pressure is stable, and sets parameters. In particular, the processing circuitry sets a dead zone parameter with which responsiveness of room pressure control is valued when it is determined that the room pressure easily fluctuates and otherwise sets a dead zone parameter with which reduction in the number of operations of the room pressure control valve is valued above the responsiveness of the room pressure control.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: April 17, 2018
    Assignee: AZBIL CORPORATION
    Inventors: Rintaro Omura, Yasuhito Omagari
  • Patent number: 9898107
    Abstract: A tactile control device and method for generating a modifier through the use of fuzzy logic for modifying control data responsive to a user's tactile input with the device are disclosed. The system may include one or more measurements corresponding to one or more interfering factors, a source of control data representative of a command generated in response to the user's tactile interaction, and a processing unit (PU). The PU may be configured to receive input data representative of at least one measurement corresponding to a measurement(s) of an interfering factor, determine a plurality of values based upon the measurement(s) and a plurality of first functions, determine a control data modifier based upon the plurality of values, and generate data representative of the modifier, where the modifier may be applied to the control data or data correspond to the control data.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: February 20, 2018
    Assignee: Rockwell Collins, Inc.
    Inventors: Bandi Bharat Kumar Reddy, Norm W. Arons
  • Patent number: 9784490
    Abstract: A refrigeration system includes a supplemental heat exchanger operably disposed between a condenser and an evaporator. This supplemental heat exchanger is located in selective fluid communication with the air in the conditioned space, and can be toggled between an “invisible” mode in which the heat exchanger acts as a simple fluid conduit between the condenser and evaporator, and a “humidity reduction” mode in which the heat exchanger operates to transfer heat from hot refrigerant to the colder conditioned space. This addition of heat into the conditioned space decreases the relative humidity of the conditioned space and subcools the refrigerant leading to the expansion valve and evaporator. This subcooling of the liquid enables the evaporator to operate at a lower temperature which enhances the moisture removal from the air moving through the evaporator.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 10, 2017
    Assignee: Tippmann Companies LLC
    Inventor: Daniel J. Tippmann
  • Patent number: 9109981
    Abstract: Methods and apparatus for determining indoor air contaminant levels independent of outdoor contaminant levels. In one embodiment, an infinite geometric series is used to compute a true indoor air contaminant level in a room.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 18, 2015
    Assignee: AIRCUITY, INC.
    Inventor: Gordon P. Sharp
  • Patent number: 9074781
    Abstract: A roof ventilation system operable based on environmental parameters is disclosed. The system includes a vent, a fan, a solar panel, a battery and a controller. The vent is positioned within a field of a roof, and includes a first opening configured to allow airflow between regions above and below the roof. The fan is positioned to generate an air flow through the vent. The solar panel is positioned on the roof in a location such that the solar panel receives solar radiation. The battery is electrically connected to the solar panel. The controller is in communication with the fan, and is configured to drive the fan based on at least one environmental parameter.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: July 7, 2015
    Inventor: Gregory S. Daniels
  • Patent number: 9033776
    Abstract: An embodiment includes a first space, a second space, a first damper, a second damper, and a third damper. The first space is connected to a cold space, having cold air reside therein to send to the cold space. The second space has return air reside therein, as it is discharged from a hot space. The first damper has an opening adjusted under control of a controller to take in outdoor air to the first space, and is operable to have an open state in an emergency with a server being supplied with power. The second damper has an opening adjusted under control of the controller to discharge return air in the second space, outside thereof, and is operable to have an open state in the emergency. The third damper has an opening adjusted under control of the controller to recirculate return air in the second space to the first space.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: May 19, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomoyuki Kinoshita, Yuuichi Hanada, Hideyoshi Ootani, Yasuo Takagi, Dai Murayama, Hiroshi Morimoto, Koubun Takahashi
  • Publication number: 20150132838
    Abstract: A ventilation unit is arranged to effect flow reversal, according to two opposite directions, of a gas flow generated by a fan without reversing the rotation direction of the fan. The ventilation unit includes a fan, at least a first piping arrangement through which a gas flow is intended to pass in one of the two possible directions depending on whether it is blown or sucked by the fan, and a switching assembly arranged between the fan and the first piping arrangement, at least a switching device being provided in the switching assembly and being movable between two positions for selectively and alternately connecting the first piping arrangement to a delivery duct and to a suction duct of the fan, so as to allow the passage of a gas flow in a direction or in the opposite direction within the first piping arrangement.
    Type: Application
    Filed: May 14, 2013
    Publication date: May 14, 2015
    Inventors: Pietro Paolo Cella Mazzariol, Gian Francesco Galanzino, Alessandro Avonto
  • Patent number: 9017156
    Abstract: A damper blade is moved within an air control module connected to the discharge of a high-velocity blower, thereby modulating the electric power consumption of the blower motor.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: April 28, 2015
    Assignee: Mestek, Inc.
    Inventor: Farhad Davledzarov
  • Patent number: 8985475
    Abstract: A laundry transport apparatus and method includes a container defining an interior area configured to accommodate a plurality of laundry carts, the container having a door movable between closed and open configurations to selectively allow access to said interior area. The apparatus includes a ventilation network to pass air to and from the interior area, the ventilation network including a pathogen identification and containment apparatus to detect, isolate and treat potentially harmful material within the soiled laundry. At least a portion of intake and outlet ducts are immediately adjacent one another to influence temperature of air passing through each duct, warmer air passing through one of the intake duct or the outlet duct becoming cooler and cooler air passing through another of the intake duct or the outlet duct becoming warmer.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: March 24, 2015
    Inventor: Bertram E. Lacey
  • Patent number: 8965586
    Abstract: An energy-reducing method and apparatus for retrofitting a constant volume HVAC system, with or without an economizer, that provides heating, cooling, and ventilation to occupants within a building space. The present invention includes the introduction of a programmable logic controller and variable frequency drive (VFD) that takes control of the existing fan, heating, cooling, and optional economizer operation. The controller is programmed fault detection of fan fault, heat/cool (temperature-based) fault, and energy consumption fault. The reduction of the fan speed in the ventilation mode when the 100% operation is not needed saves significant energy of the existing constant volume HVAC system where the fan motor is designed to run 100% of the time.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: February 24, 2015
    Assignee: Transformative Wave Technologies LLC
    Inventors: Danny Miller, Justin Sipe
  • Patent number: 8963465
    Abstract: A multi-pressure-quantity fan control system for a computer system is provided. The multi-pressure-quantity fan control system includes a controller. The controller provides a pressure-quantity control signal to a fan of the computer system, in order to set the fan to operate in one of a first pressure-quantity setting and a second pressure-quantity setting, wherein under a predetermined rotating speed, the fan has a first pressure-quantity curve for the first pressure-quantity setting and a second pressure-quantity curve for the second pressure-quantity setting.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: February 24, 2015
    Assignee: Lenovo Enterprise Solutions (Singapore) Pte. Ltd.
    Inventors: Charlie C C Chiu, Edward Y C Kung, Tzongli Lin, Bruce A. Smith
  • Patent number: 8951103
    Abstract: A foldably tensioned boot loadable air damper device for controlling the flow of air through ductwork, and a method of installing same. The damper device includes an actuator having a retractable member and a pivoting member, wherein the pivoting member is operatively connected to the retractable member of the actuator. The damper device also includes at least one support base supporting the actuator and the pivoting member with respect to each other, a foldable damper blade attached to the pivoting member, and at least one tensioned hinge member operatively connected to the foldable damper blade for unfolding the damper blade. The damper device may be inserted through a register boot and into a ductwork when folded.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: February 10, 2015
    Assignee: Arzel Zoning Technology, Inc.
    Inventors: Mark Votaw, Dennis Laughlin, Al Zelczer, Howard Zelczer, Lenny Roth, Vladimir Sipershteyn, Joseph Ramunni, Bill Molica
  • Patent number: 8944897
    Abstract: A ventilation system and a controlling method of such a ventilation system are provided. The ventilation system may exhaust internal air from and draw fresh external air into a designated space. When an outdoor temperature is below a freezing point, some of the internal components of the ventilation system may be damaged due to the low external air temperature. This ventilation system controls operation of a supply fan and/or an exhaust fan based on the temperature of supplied and/or exhausted air to prevent such damage.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: February 3, 2015
    Assignee: LG Electronics Inc.
    Inventors: Min Chul Cho, Jae Sun Song, Jeong Hun Kim
  • Patent number: 8939826
    Abstract: An apparatus for heating, ventilation and/or air conditioning of an interior space includes a heat exchanger core and a heating/cooling device in fluid connection with the heat exchanger core. A recirculation port is arranged between a supply air chamber and an outside air chamber. A damper is adapted to move between a first position in which the damper blocks the recirculation port and a second position in which the recirculation port is unblocked. When the damper is in the second position, at least a portion of supply air is guided to flow from the supply air chamber through the outside air chamber to the heat exchanger core so as to defrost the heat exchanger core.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: January 27, 2015
    Assignee: Unilux V.F.C. Corp.
    Inventors: Vittorio Zorzit, Sheng Chu
  • Publication number: 20150004898
    Abstract: Methods and apparatus for providing an air sampling system with first and second PID sensors to discriminate ammonia measurements. In one embodiment, air samples are taken from a vivarium environment to determine ammonia levels for controlling air flow to the vivarium.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Applicant: Aircuity, Inc.
    Inventor: Eric M. Desrochers
  • Patent number: 8918218
    Abstract: Methods and systems for remotely monitoring and/or controlling a demand control ventilation system are disclosed. In one illustrative embodiment, a demand control ventilation device having a damper and a controller are provided. The damper may have a range of damper positions for controlling a flow of outside air into the building. The controller controls the damper positions such that a desired flow of outside air is drawn through the damper and into the building. A remote monitoring device may also be provided. The remote monitoring device may be located remotely from the demand control ventilation device, but in communication with or part of the controller. In some instances, the remote monitoring device may have a user interface for remotely monitoring and/or controlling at least certain aspects of the demand control ventilation system from the remote location.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: December 23, 2014
    Assignee: Honeywell International Inc.
    Inventors: Cory Grabinger, Scott McMillan, Adrienne Thomle, Milan Kostelecky
  • Patent number: 8905829
    Abstract: To provide a ventilating system and ventilating system control method capable of advancing energy conservation. A controller sets a static pressure setting value based on the airflow of the system as a whole, calculated from the airflow of venturi air valves of fume hoods that are operating, and controls the speed of rotation of a fan based on the static pressure setting value and the static pressure within a main duct. Doing so enables control of the speed of rotation of the fan to be performed while ensuring the airflow of the ventilating system, thus making it possible to prevent wasted motive force of the fan, even when the airflows of each of the venturi air valves are not identical and even when the changes in resistance of the branched duct system relative to the various changes in airflow are not identical, with the result that it is possible to advance energy conservation.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: December 9, 2014
    Assignee: Azbil Corporation
    Inventor: Xiangyang Chen
  • Patent number: 8900042
    Abstract: A fan type temperature control method and device are provided. The device includes a fan unit including a plurality of fans and cooling an apparatus to be cooled, power supplies (v1,v2) supplying power for the fans in the fan unit, and a fan control unit which controls the fans as follows: when temperature t of the apparatus is lower than critical temperature t1 of a first temperature detect switch (k01), all fans stop; when t is higher than t1 and lower than critical temperature t2 of a second temperature detect switch (k02), all fans rotate at half speed; when t is higher than t2 while lower than critical temperature t3 of a third temperature detect switch (k03), a first fan part (M1) rotates at full speed and a second fan part (M2) stops; when t is higher than t3, all fans rotate at full speed.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: December 2, 2014
    Assignee: ZTE Corporation
    Inventors: Yanni Meng, Hui Rong, Mingming Liu, Baohang Zhou, Shuwang Wei, Lingqiao Teng
  • Patent number: 8900040
    Abstract: The invention generally relates to ventilation systems and methods, and more particularly to selectively configurable climate control systems and methods for use in data centers and the like. A device includes a support element and a plurality of ducts connected to the support element. The device also includes a manifold in fluid communication with each one of the plurality of ducts and a plurality of valves. Each respective one of the plurality of valves is associated with a respective one of the plurality of ducts. Moreover, there is at least one actuator operatively connected to the plurality of valves, which is structured and arranged to individually actuate each one of the plurality of valves.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: December 2, 2014
    Assignee: International Business Machines Corporation
    Inventors: Christopher J. Dawson, Vincenzo V. Diluoffo, Rick A. Hamilton, II, Michael D. Kendzierski
  • Publication number: 20140349565
    Abstract: A critical parameter monitoring system for improving the safety of personnel working in a remotely located hazardous location possibly containing combustible materials include an oxygen and a temperature sensor carried by the personnel. The sensors are connected to a centrally located processor which displays the oxygen level and temperature present at the sensors and issues a warning when the measured parameters exceed preset levels. The monitoring system may be a part of a breathing apparatus which supplies air and voice communications from the centralized location to personnel working in a vessel purged with an inert gas. The measured oxygen level may also be used to conserve the quantity of inert gas used in the purging process while preserving the safety of the workers.
    Type: Application
    Filed: April 28, 2014
    Publication date: November 27, 2014
    Inventor: Michsel G. Flood
  • Patent number: 8876940
    Abstract: The present invention provides an air cleansing system that removes the polluted air and controls the air temperature. This system may by optionally integrated with other systems including security, surveillance, smoke alarms and the like.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: November 4, 2014
    Assignee: SISACS Holdings Ltd.
    Inventor: Stuart Martin Innes
  • Publication number: 20140287672
    Abstract: A mixer assembly for an air-conditioning system comprising a recirculation air line, connectable to a vehicle region to be air-conditioned, to remove recirculation air from the region, and an air-conditioning air line, connectable to an air-conditioning unit to remove conditioned air from the air-conditioning unit. A first mixing region, for mixing the recirculation air with the conditioned air, is connected to the two air lines. A second mixing region, for mixing the first mixing region air with recirculation air, is connected to the recirculation air line and the first mixing region. Also, a first supply line is connected to the first mixing region to supply air from the first mixing region to a first partial region of the vehicle region, and a second supply line is connected to the second mixing region to supply air from the second mixing region to a second partial region of the vehicle region.
    Type: Application
    Filed: June 5, 2014
    Publication date: September 25, 2014
    Inventors: Dietrich Lampe, Thomas Scherer, Jens Lohmar, Michael Markwart, Martin Schmid
  • Patent number: 8827170
    Abstract: A ventilation system utilizing fans to bring air into a building and/or exhaust air out of the building powered at least in part by solar panels that can be quickly and easily mounted on the building, such as on roof vents, windows, and the like adjacent to the fans. A sensor may be operatively connected to a controller or logic circuit to measure environmental factors to determine whether to activate the fans. The ventilation system is configured to be a modular device with versatile fasteners for easy installment in windows, attics, or roof tops.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: September 9, 2014
    Assignee: The Securecase Company
    Inventor: Daniel Cislo
  • Publication number: 20140248831
    Abstract: Disclosed herein is a hybrid ventilation apparatus capable of both natural and forced ventilation. In the case of a natural ventilation mode, a worm gear is rotated in a normal direction by drive force of a drive unit under control of a control unit so that a pressing member engages with a rotation guide protrusion and rotates a damper, thus opening a flow passage, and then the worm gear is reversely rotated by drive force of the drive unit to return the pressing member to its original position, thus allowing a user to rotate a roller upwards and downwards and rotate the damper so that the degree of opening of the flow passage can be adjusted. Thereby, rapid inflow of outdoor air can be blocked, and a cold graft phenomenon, in which the temperature of indoor air rapidly drops, can be prevented.
    Type: Application
    Filed: March 20, 2012
    Publication date: September 4, 2014
    Applicants: KOREA INSTITUTE OF CONSTRUCTION TECHNOLOGY, HUTECO CO., LTD., PEOPLUS CO., LTD.
    Inventors: Hak Sung Kim, Hak Guym Kim, Yun Gyu Lee
  • Publication number: 20140202336
    Abstract: A system for air destratification, circulation, and/or purification including an intake positioned proximate a ceiling of a space formed by a floor, a plurality of walls and the ceiling; an exhaust, positioned proximate the ceiling and separate from the intake; a fan structure comprising a motor mechanically coupled with fan blades; a first duct for coupling the intake to the fan structure; a second duct for coupling the exhaust to the fan structure; and at least one attachment for supporting the fan structure such that no additional stress is applied to the ceiling from the fan structure; wherein the fan structure moves air from the intake to the exhaust via the first and second ducts. The system may be capable of fitting within a single ceiling tile of a T-bar ceiling.
    Type: Application
    Filed: January 22, 2014
    Publication date: July 24, 2014
    Applicant: Zoo Fans, Inc.
    Inventors: Jeffrey G. Benton, Cory R. Cochran