Oy Halton Group Ltd. Patent applications |
Patent application number | Title | Published |
20140318733 | CHILLED BEAM DEVICES, SYSTEMS, AND METHODS - 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. | 10-30-2014 |
20140238380 | OVEN EXHAUST HOOD METHODS, DEVICES, AND SYSTEMS - An exhaust device for convection or combi ovens captures exhaust from opening side-opening oven doors with minimal energy waste. | 08-28-2014 |
20140235158 | AUTONOMOUS VENTILATION SYSTEM - An autonomous ventilation system includes a variable-speed exhaust fan, a controller, an exhaust hood, and an infrared radiation (“IR”) sensor. The exhaust fan removes air contaminants from an area. The controller is coupled to the exhaust fan and adjusts the speed of the exhaust fan. The exhaust hood is coupled to the exhaust fan and directs air contaminants to the exhaust fan. The IR sensor is coupled to the controller, detects changes in IR index in a zone below the exhaust hood, and communicates information relating to detected changes in IR index to the controller. The controller adjusts the speed of the exhaust fan in response to information relating to detected changes in IR index. The autonomous ventilation system also includes an alignment laser to indicate a point at which the IR sensor is aimed and a field-of-view (“FOV”) indicator to illuminate the zone in which the IR sensor detects changes in IR index. | 08-21-2014 |
20140202445 | EXHAUST HOOD METHODS, DEVICES, AND SYSTEMS - Exhaust hood methods, devices, and systems are disclosed herein that improve the performance of short-circuit hoods. Such improvements can be provided relatively inexpensively by utilizing existing features of the structure of short-circuit hoods. The resulting enhancement in performance may exceed that of a regular exhaust hood while avoiding the pitfalls associated with make-up air injection into the exhaust hood recess. The components of the short-circuit system that inject make-up and/or conditioned air into the exhaust hood recess can be converted into a combination of horizontal and vertical jets at a lower edge of the exhaust hood. A retrofit jet generator can be installed into the short-circuit system outlets. A series of openings in the jet generator can generate the combination of horizontal and vertical jets at a lower edge of the exhaust hood when air from the make-up air or conditioned air source is supplied thereto. | 07-24-2014 |
20140182575 | AUTONOMOUS VENTILATION SYSTEM - An autonomous ventilation system includes a variable-speed exhaust fan, a controller, an exhaust hood, and a spillage sensor. The exhaust fan removes air contaminants from an area. The controller is coupled to the exhaust fan and adjusts the speed of the exhaust fan. The exhaust hood is coupled to the exhaust fan and directs air contaminants to the exhaust fan. The spillage sensor is coupled to the controller, detects changes in an environmental parameter in a spillage zone adjacent to the exhaust hood, and communicates information relating to detected changes in the environmental parameter to the controller. The controller adjusts the speed of the exhaust fan in response to information relating to detected changes in the environmental parameter. | 07-03-2014 |
20130291735 | AIR PURIFICATION DEVICES METHODS AND SYSTEMS - 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. | 11-07-2013 |
20130287627 | ULTRAVIOLET MONITORING SYSTEMS, METHODS, AND DEVICES - In embodiments, a control system for a UV air treatment system, especially one used for cleaning a fume stream such as in a kitchen exhaust system, detects a need for cleaning maintenance on the UV light source based on changes in light intensity. The system further detects the light intensity each time the UV light source is cleaned to determine if the drop in intensity after cleaning indicates that the UV light source should be replaced. The cleaning and replacement requirements are indicated automatically by a user interface. | 10-31-2013 |
20130213483 | REAL-TIME CONTROL OF EXHAUST FLOW - 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. | 08-22-2013 |
20130149949 | CONTROL OF EXHAUST SYSTEMS - 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. | 06-13-2013 |
20130149947 | OVEN EXHAUST HOOD METHODS, DEVICES, AND SYSTEMS - An exhaust device for convection or combi ovens captures exhaust from opening side-opening oven doors with minimal energy waste. | 06-13-2013 |
20130092148 | ENERGY RECOVERY DEVICES, SYSTEMS, AND METHODS - Energy recovery devices, systems and methods, and energy recovery control systems and methods for efficient extraction and reuse of waste heat from exhaust fumes generated from cooking appliances. | 04-18-2013 |
20120295532 | CHILLED BEAM DEVICES, SYSTEMS, AND METHODS - 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. | 11-22-2012 |
20110284091 | EXHAUST FLOW CONTROL SYSTEM AND METHOD - A system and method for controlling the exhaust flow rate in an exhaust ventilation system including an exhaust hood positioned above a cooking appliance. The method can include measuring a temperature of the exhaust air in the vicinity of the cooking appliance, and measuring a radiant temperature of a surface of the cooking appliance, and determining an appliance status based on the measured exhaust air temperature and radiant temperature, and controlling the exhaust flow rate in response to the determined appliance status. | 11-24-2011 |
20110275301 | Autonomous Ventilation System - An autonomous ventilation system includes a variable-speed exhaust fan, a controller, an exhaust hood, and an infrared radiation (“IR”) sensor. The exhaust fan removes air contaminants from an area. The controller is coupled to the exhaust fan and adjusts the speed of the exhaust fan. The exhaust hood is coupled to the exhaust fan and directs air contaminants to the exhaust fan. The IR sensor is coupled to the controller, detects changes in IR index in a zone below the exhaust hood, and communicates information relating to detected changes in IR index to the controller. The controller adjusts the speed of the exhaust fan in response to information relating to detected changes in IR index. The autonomous ventilation system also includes an alignment laser to indicate a point at which the IR sensor is aimed and a field-of-view (“FOV”) indicator to illuminate the zone in which the IR sensor detects changes in IR index. | 11-10-2011 |
20110250099 | FUME TREATMENT METHOD AND APPARATUS USING ULTRAVIOLET LIGHT TO DEGRADE CONTAMINANTS - An ultraviolet treatment chamber for treating exhaust streams, particularly those containing organic particulates, utilizes ultraviolet light energy very efficiently. This is done by setting up a circulating flow in a treatment plenum so that all of the effluent experiences a substantially uniform residence time without the need for baffles or other flow controllers that would block the ultraviolet light. | 10-13-2011 |
20110174384 | REAL-TIME CONTROL OF EXHAUST FLOW - 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. | 07-21-2011 |
20110053483 | EXHAUST APPARATUS, SYSTEM, AND METHOD FOR ENHANCED CAPTURE AND CONTAINMENT - A ventilation exhaust intake device is located at ceiling level of a production space and has a low profile form with combination of vertical and horizontal jets. Recesses and other feature are provided to enhance capture and containment and other functional aspects. Certain embodiments include a light source adjacent the jet registers. | 03-03-2011 |
20110021128 | CONTROL OF EXHAUST SYSTEMS - 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. | 01-27-2011 |
20100294259 | CONTROL OF EXHAUST SYSTEMS - 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. | 11-25-2010 |
20100225477 | DUCT GREASE DEPOSIT DETECTION DEVICES, SYSTEMS, AND METHODS - Automatic devices that determine when pollutant deposits have accumulated in ductwork may be employed to notify maintenance personnel or automated cleaning equipment of the need for ducts to cleaned or replaced. Various detection devices may be employed to detect a property of accumulated grease and generate an indication of an accumulation. The detection device may present a surface to the fume stream inside a duct. The surface may be cooled to a temperature that represents a worst case temperature so that the accumulation due to condensation on the detector surface is at least as high as the coolest surface in the ductwork which is being monitored. Alternatively, the detection device may be located external to the duct. The detection device may interrogate the surface of the duct through contact or noncontact measurements to determine the thickness of an accumulated grease layer on the interior of the duct. | 09-09-2010 |
20100005765 | HIGH EFFICIENCY GREASE FILTER CARTRIDGE - A grease filter has a filtering portion configured such that fumes enter a major face thereof and flow through a grease extraction filter therewithin in a direction parallel to the major face. A frame that fits into an opening of a hood defines a box structure that is configured to allow flow from the end (or ends) of the filtering portion where flow exits. The frame permits the flow to exit to a side opposite the face even when the frame is surrounded, edgewise, by a solid structure of the hood opening | 01-14-2010 |
20090264060 | RECIRCULATING EXHAUST SYSTEM - 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. | 10-22-2009 |
20090199844 | EXHAUST HOOD WITH AIR CURTAIN - An exhaust hood captures and contains a thermal plume with a minimum of exhaust air by defining a short-throw planar jet around a protected perimeter. Corner interference is mitigated by various mechanisms including having at least one of adjacent planar jets run only partly along a respective edge such that said first and second curtain jets do not meet at said corner; having a direction of the planar jets proximate corners where they meet being intermediate between respective directions of the jets along respective main portions of the perimeter; or having a direction of the jets of one of the adjacent edges be horizontal while the other is vertical. | 08-13-2009 |
20090093210 | DAMPER SUITABLE FOR LIQUID AEROSOL-LADEN FLOW STREAMS - A flow control device has a duct section with a plurality of damper blocking elements, each having a major plane. The damper blocking elements are pivotably connected to the duct section and movable in a range that is limited to ensure that, when the duct section is mounted in a preferred orientation, the damper blocking element major planes always form an angle of at least 45 degrees from the horizontal throughout the range. The range is such that the plurality of damper blocking elements can selectively close and open the duct. The blocking elements can completely close the duct, for example, to block natural convection. | 04-09-2009 |
20090032011 | CONTROL OF EXHAUST SYSTEMS - 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. | 02-05-2009 |
20080308088 | Low Profile Exhaust Hood - 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. | 12-18-2008 |
20080207109 | Ventilation Register and Ventilation Systems - 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. | 08-28-2008 |