Patents by Inventor Rick A. Bagwell

Rick A. Bagwell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11384941
    Abstract: An exhaust hood may have an exhaust inlet; a shroud having a lower edge and being movable, the shroud being configured to define an enclosed space over and adjacent a cooking surface, the enclosed space being in communication with the exhaust inlet. The shroud is movable to a first position providing clearance between the cooking surface and the shroud lower edge and a second position providing substantially less than the clearance provided by the first position. A vertical jet at the lower edge is aimed upwardly and along an inside of the shroud when the shroud is in the second position and the vertical jet is in the enclosed space. A horizontal jet is provided at a top of the shroud and aimed along an inside of the shroud when the shroud is in the second position and the vertical jet being in the enclosed space.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: July 12, 2022
    Assignee: Oy Halton Group Ltd.
    Inventors: Andrey V. Livchak, Derek W. Schrock, Olli Sipila, Philip J. Meredith, Rick A. Bagwell, Andrew C. Faller
  • Patent number: 11242999
    Abstract: Exhaust capture and containment are enhanced by means of automatic or manual side skirts, a sensitive breach detector based on interference effects, a combination of vertical and horizontal edge jets, and/or corner jets that are directed to the center diagonally from corners. Associated control functions are described.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: February 8, 2022
    Assignee: Oy Halton Group Ltd.
    Inventors: Andrey V. Livchak, Derek W. Schrock, Rick A. Bagwell, Darrin W. Beardslee
  • Patent number: 11137146
    Abstract: A method of controlling exhaust flow includes receiving at a digital controller at least one signal pertaining to a state of cooking appliance, controlling an exhaust flow to increase responsively to the at least one signal at a first time, and controlling the exhaust flow to decrease at a later time responsively to at least another signal indicating another state of the cooking appliance.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: October 5, 2021
    Assignee: OY HALTON GROUP LTD.
    Inventors: Rick A. Bagwell, Andrey V. Livchak, Derek W. Schrock
  • Patent number: 10744356
    Abstract: A method of responding to a condition in an exhaust ventilation system that has an exhaust hood includes receiving, at a control module, an exhaust air temperature signal representing a temperature of the exhaust air in a vicinity of the exhaust hood, the exhaust air temperature signal being generated by a temperature sensor. The method also includes receiving a radiant temperature signal representing a temperature of a surface of a cooking appliance that generates the exhaust air, the radiant temperature signal being generated by a radiant temperature sensor. Further, the method includes receiving a pressure signal representing the pressure in the hood and determining a state of the cooking appliance based on the received exhaust air temperature signal, the received radiant temperature signal, and the received pressure signal. Finally, the method responds to the determined appliance state by outputting a control signal from the control module.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: August 18, 2020
    Assignee: Oy Halton Group Ltd.
    Inventors: Andrey V. Livchak, Rick A. Bagwell, Philip J. Meredith, Derek W. Schrock
  • Patent number: 10634365
    Abstract: A services supply device for a commercial kitchen includes multiple wall modules that are interconnectable to form a continuous wall. The continuous wall is defined by a pair of common substantially planar surfaces, one at the front side of the wall and one at the back side of the wall, spaced apart by some distance. The interior of the wall between the front and back sides forms a cavity. A portion of the cavity may be configured as an exhaust duct that conveys exhaust fumes away from a cooking appliance serviced by the services supply device, while another portion may be configured as a filter. The exhaust duct may have an inlet positioned on one of the sides of the continuous wall. The individual wall modules may be formed from functional units stacked on top of each other.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: April 28, 2020
    Assignee: OY HALTON GROUP LTD.
    Inventors: Andrey V. Livchak, Derek W. Schrock, Philip J. Meredith, Rick A. Bagwell, Andrew C. Faller
  • Patent number: 10473336
    Abstract: Systems, devices and methods provide energy recover, modular systems to build and revise commercial kitchen services, closed circuit exhaust, and high efficiency capture and containment of fumes from cooking processes.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: November 12, 2019
    Assignee: OY HALTON GROUP LTD.
    Inventors: Andrey V. Livchak, Derek W. Schrock, Olli Sipila, Philip J. Meredith, Darrin W. Beardslee, Rick A. Bagwell, Andrew C. Faller
  • Patent number: 10434344
    Abstract: A method of responding to a condition in an exhaust ventilation system that has an exhaust hood includes receiving, at a control module, an exhaust air temperature signal representing a temperature of the exhaust air in a vicinity of the exhaust hood, the exhaust air temperature signal being generated by a temperature sensor. The method also includes receiving a radiant temperature signal representing a temperature of a surface of a cooking appliance that generates the exhaust air, the radiant temperature signal being generated by a radiant temperature sensor. Further, the method includes receiving a pressure signal representing the pressure in the hood and determining a state of the cooking appliance based on the received exhaust air temperature signal, the received radiant temperature signal, and the received pressure signal. Finally, the method responds to the determined appliance state by outputting a control signal from the control module.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: October 8, 2019
    Assignee: OY HALTON GROUP LTD.
    Inventors: Andrey V. Livchak, Rick A. Bagwell, Philip J. Meredith, Derek W. Schrock
  • Patent number: 10365003
    Abstract: A ventilation system includes a supply register with a displacement-type diffuser providing a flow of ventilation air at a non-mixing rate that maintains stratification of air in the occupied space. An first exclusive return register is positioned near the ceiling and a second exclusive return register is positioned near the floor. A control system controls the flow of heated or cooled air to the supply register and selectively controls the flow of air into the first or second return registers. During the cooling mode, cooled air flows through the supply register and air is withdrawn only through the first exclusive return register, while in the heating mode warm air flows through the supply register and air is withdrawn only through the second return register.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: July 30, 2019
    Assignee: Oy Halton Group Ltd.
    Inventors: Andrey V. Livchak, Rick A. Bagwell
  • Patent number: 10215421
    Abstract: An exhaust device for convection or combi ovens captures exhaust from opening side-opening oven doors with minimal energy waste.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: February 26, 2019
    Assignee: OY HALTON GROUP LTD.
    Inventors: Rick A. Bagwell, Andrey V. Livchak, Derek W. Schrock
  • Patent number: 9909766
    Abstract: A flow control system for controlling exhaust flow can measure effluent escaping from the exhaust hood at a given flow rate. An interferometric detector can measure fluctuations in fluid properties external to and/or in the vicinity of the exhaust hood. The flow control system may vary a flow rate of the exhaust hood and/or control exhaust hood structures responsive to the measurements to contain the effluent while minimizing the exhaust of air from the occupied space.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: March 6, 2018
    Assignee: OY HALTON GROUP LTD.
    Inventors: Rick A. Bagwell, Derek Schrock, Andrey Livchak
  • Patent number: 9777929
    Abstract: An exhaust device for convection or combi ovens captures exhaust from opening side-opening oven doors with minimal energy waste.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: October 3, 2017
    Assignee: OY HALTON GROUP LTD.
    Inventors: Rick A. Bagwell, Andrey V. Livchak, Philip Meredith, Derek W. Schrock, Andrew C. Faller, Darrin W. Beardslee
  • Patent number: 9726442
    Abstract: A chilled beam system may incorporate a terminal unit to provide additional heating and cooling capacity including latent cooling. In a system, terminal units may be distributed and connected to cooperate with a primary air stream from a central air handling unit. The chilled beam and/or terminal units may employ features for enhancing heating mode operation. Control embodiments take advantage of the additional capabilities described.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: August 8, 2017
    Assignee: OY HALTON GROUP LTD.
    Inventors: Rick A. Bagwell, Janne Summanen, Andrey V. Livchak
  • Patent number: 9662519
    Abstract: Systems, devices, and methods for determining whether a fire condition exists based on a status of a cooking appliance, and systems, devices, and methods for controlling an exhaust air flow rate in an exhaust air ventilation system based on the status of the cooking appliance. At least one sensor type generating a predefined signal is used to detect fire condition and appliance cooking state, the predefined signal being applied to a controller which differentiates, responsively the predefined signal, in combination with other sensor signals, at least two cooking states each of the cooking states corresponding to at least two exhaust flow rates which the controller implements in response to the controller's differentiation of the two states and which predefined signal is simultaneously used to differentiate a fire condition, in response to the differentiation of which, the same controller activates a fire suppression mechanism.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: May 30, 2017
    Assignee: OY HALTON GROUP LTD.
    Inventors: Andrey V. Livchak, Rick A. Bagwell, Philip J. Meredith, Derek W. Schrock
  • Patent number: 9664395
    Abstract: An exhaust hood includes a top wall extending in a horizontal direction, a convexly curved front wall extending in a vertical direction from the top wall. The hood also includes a filter support plate that holds a grease filter under the top wall and horizontally spaced from the front wall. The support plate is angled such that a bottom edge of the plate is farther in the horizontal direction from the front wall than a top edge of the plate proximal to the top wall. Surfaces of the top wall, the front wall, the filter support panel, and of a baffle under the support plate bound a chamber through which fumes flow to the grease filter. A free end of the front wall can be closer to the top wall than a portion of the front wall between the first end and the free end of the front wall.
    Type: Grant
    Filed: September 8, 2012
    Date of Patent: May 30, 2017
    Assignee: OY HALTON GROUP, LTD.
    Inventors: Andrey V. Livchak, Derek W. Schrock, Rick A. Bagwell, Darrin W. Beardslee
  • Patent number: 9644851
    Abstract: Displacement ventilation systems are generally poor performers when it comes to heating. The instant patent application discusses devices and systems for improving heating performance while retaining the benefits of displacement ventilation without wholesale co-location of independent space conditioning systems.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: May 9, 2017
    Inventors: Andrey Livchak, Rick A. Bagwell
  • Patent number: 9393338
    Abstract: A device and method for air purification used in cooling, heating and air ventilation systems. The device has at least one UV light source positioned on an inside portion of a movable access panel so that it moves with the access panel from a first position where the UV source directs UV light towards the inside of the system to purify the air stream inside and to remove contaminants from the surfaces inside the system, to a second position where the UV source directs UV light towards the space surrounding the system so that it purifies the air in the room where the system is mounted.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: July 19, 2016
    Assignee: OY HALTON GROUP LTD.
    Inventors: Andrey V. Livchak, Rick A. Bagwell
  • Patent number: 9335057
    Abstract: A flow control system for controlling exhaust flow can measure effluent escaping from the exhaust hood at a given flow rate. An interferometric detector can measure fluctuations in fluid properties external to and/or in the vicinity of the exhaust hood. The flow control system may vary a flow rate of the exhaust hood and/or control exhaust hood structures responsive to the measurements to contain the effluent while minimizing the exhaust of air from the occupied space.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: May 10, 2016
    Assignee: OY HALTON GROUP LTD.
    Inventors: Rick A. Bagwell, Derek Schrock, Andrey Livchak
  • Patent number: 9239169
    Abstract: A low profile exhaust hood has a high inlet and a high aspect ratio of horizontal to vertical. A sloping wall of the recess guides hot plumes upwardly to the inlet. The inlet is sized to provide an exhaust face velocity that is at least as high as a highest possible plume velocity for a 400 F oven. The inlet is located high and forwardly to cause a suction zone to be generated near the forward edge of the hood to aid in capturing plumes tending to escape which are remote from the sloping wall.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: January 19, 2016
    Assignee: OY HALTON GROUP LTD.
    Inventors: Andrey V Livchak, Derek W. Schrock, Rick A. Bagwell, Darrin W. Beardslee
  • Patent number: 9134036
    Abstract: An exhaust device for convection or combi ovens captures exhaust from opening side-opening oven doors with minimal energy waste.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: September 15, 2015
    Assignee: OY HALTON GROUP LTD.
    Inventors: Rick A. Bagwell, Andrey V. Livchak, Philip J. Meredith, Derek W. Schrock, Andrew C. Faller, Darrin W. Beardslee
  • Publication number: 20150136430
    Abstract: Systems, devices, and methods for determining whether a fire condition exists based on a status of a cooking appliance, and systems, devices, and methods for controlling an exhaust air flow rate in an exhaust air ventilation system based on the status of the cooking appliance. At least one sensor type generating a predefined signal is used to detect fire condition and appliance cooking state, the predefined signal being applied to a controller which differentiates, responsively the predefined signal, in combination with other sensor signals, at least two cooking states each of the cooking states corresponding to at least two exhaust flow rates which the controller implements in response to the controller's differentiation of the two states and which predefined signal is simultaneously used to differentiate a fire condition, in response to the differentiation of which, the same controller activates a fire suppression mechanism.
    Type: Application
    Filed: June 7, 2013
    Publication date: May 21, 2015
    Inventors: Andrey V. Livchak, Rick A. Bagwell, Philip J. Meredith, Derek W. Schrock