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).
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Patent number: 11384941Abstract: 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: GrantFiled: May 22, 2019Date of Patent: July 12, 2022Assignee: Oy Halton Group Ltd.Inventors: Andrey V. Livchak, Derek W. Schrock, Olli Sipila, Philip J. Meredith, Rick A. Bagwell, Andrew C. Faller
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Patent number: 11242999Abstract: 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: GrantFiled: December 18, 2018Date of Patent: February 8, 2022Assignee: Oy Halton Group Ltd.Inventors: Andrey V. Livchak, Derek W. Schrock, Rick A. Bagwell, Darrin W. Beardslee
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Patent number: 11137146Abstract: 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: GrantFiled: January 28, 2019Date of Patent: October 5, 2021Assignee: OY HALTON GROUP LTD.Inventors: Rick A. Bagwell, Andrey V. Livchak, Derek W. Schrock
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Patent number: 10744356Abstract: 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: GrantFiled: September 17, 2019Date of Patent: August 18, 2020Assignee: Oy Halton Group Ltd.Inventors: Andrey V. Livchak, Rick A. Bagwell, Philip J. Meredith, Derek W. Schrock
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Patent number: 10634365Abstract: 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: GrantFiled: December 19, 2014Date of Patent: April 28, 2020Assignee: OY HALTON GROUP LTD.Inventors: Andrey V. Livchak, Derek W. Schrock, Philip J. Meredith, Rick A. Bagwell, Andrew C. Faller
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Patent number: 10473336Abstract: 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: GrantFiled: April 18, 2007Date of Patent: November 12, 2019Assignee: 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
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Patent number: 10434344Abstract: 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: GrantFiled: May 2, 2017Date of Patent: October 8, 2019Assignee: OY HALTON GROUP LTD.Inventors: Andrey V. Livchak, Rick A. Bagwell, Philip J. Meredith, Derek W. Schrock
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Patent number: 10365003Abstract: 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: GrantFiled: May 3, 2017Date of Patent: July 30, 2019Assignee: Oy Halton Group Ltd.Inventors: Andrey V. Livchak, Rick A. Bagwell
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Patent number: 10215421Abstract: An exhaust device for convection or combi ovens captures exhaust from opening side-opening oven doors with minimal energy waste.Type: GrantFiled: September 9, 2016Date of Patent: February 26, 2019Assignee: OY HALTON GROUP LTD.Inventors: Rick A. Bagwell, Andrey V. Livchak, Derek W. Schrock
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Patent number: 9909766Abstract: 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: GrantFiled: May 9, 2016Date of Patent: March 6, 2018Assignee: OY HALTON GROUP LTD.Inventors: Rick A. Bagwell, Derek Schrock, Andrey Livchak
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Patent number: 9777929Abstract: An exhaust device for convection or combi ovens captures exhaust from opening side-opening oven doors with minimal energy waste.Type: GrantFiled: April 30, 2014Date of Patent: October 3, 2017Assignee: OY HALTON GROUP LTD.Inventors: Rick A. Bagwell, Andrey V. Livchak, Philip Meredith, Derek W. Schrock, Andrew C. Faller, Darrin W. Beardslee
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Patent number: 9726442Abstract: 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: GrantFiled: January 24, 2011Date of Patent: August 8, 2017Assignee: OY HALTON GROUP LTD.Inventors: Rick A. Bagwell, Janne Summanen, Andrey V. Livchak
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Patent number: 9662519Abstract: 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: GrantFiled: June 7, 2013Date of Patent: May 30, 2017Assignee: OY HALTON GROUP LTD.Inventors: Andrey V. Livchak, Rick A. Bagwell, Philip J. Meredith, Derek W. Schrock
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Patent number: 9664395Abstract: 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: GrantFiled: September 8, 2012Date of Patent: May 30, 2017Assignee: OY HALTON GROUP, LTD.Inventors: Andrey V. Livchak, Derek W. Schrock, Rick A. Bagwell, Darrin W. Beardslee
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Patent number: 9644851Abstract: 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: GrantFiled: December 20, 2010Date of Patent: May 9, 2017Inventors: Andrey Livchak, Rick A. Bagwell
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Patent number: 9393338Abstract: 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: GrantFiled: November 18, 2011Date of Patent: July 19, 2016Assignee: OY HALTON GROUP LTD.Inventors: Andrey V. Livchak, Rick A. Bagwell
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Patent number: 9335057Abstract: 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: GrantFiled: March 18, 2013Date of Patent: May 10, 2016Assignee: OY HALTON GROUP LTD.Inventors: Rick A. Bagwell, Derek Schrock, Andrey Livchak
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Patent number: 9239169Abstract: 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: GrantFiled: January 6, 2006Date of Patent: January 19, 2016Assignee: OY HALTON GROUP LTD.Inventors: Andrey V Livchak, Derek W. Schrock, Rick A. Bagwell, Darrin W. Beardslee
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Patent number: 9134036Abstract: An exhaust device for convection or combi ovens captures exhaust from opening side-opening oven doors with minimal energy waste.Type: GrantFiled: February 7, 2013Date of Patent: September 15, 2015Assignee: OY HALTON GROUP LTD.Inventors: Rick A. Bagwell, Andrey V. Livchak, Philip J. Meredith, Derek W. Schrock, Andrew C. Faller, Darrin W. Beardslee
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Publication number: 20150136430Abstract: 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: ApplicationFiled: June 7, 2013Publication date: May 21, 2015Inventors: Andrey V. Livchak, Rick A. Bagwell, Philip J. Meredith, Derek W. Schrock