Patents by Inventor Timothy J. Shellenberger
Timothy J. Shellenberger 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: 11603991Abstract: A boiler can have a combustion chamber, a burner, a heat exchanger in fluid communication with the combustion chamber, and a flue for removing a combustion product from the boiler. The burner has a protruding taper shape such as a cone or similar shape. The protruding taper shape of the burner distributes heat to the heat exchanger more evenly than a cylindrical shaped burner thereby reducing heat losses at the combustion chamber wall and increasing the thermal efficiency. The protruding taper shape of the burner also reduces noise associated with the operation of the burner.Type: GrantFiled: December 6, 2019Date of Patent: March 14, 2023Assignee: RHEEM MANUFACTURING COMPANYInventors: Amin Akbarimonfared, Timothy J. Shellenberger, Leonard E. Chambers, Christopher Hertzberg, Juan Cervantes
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Publication number: 20220381432Abstract: A fuel-fired furnace incorporates specially designed fuel/air mixing and combustion structures. The fuel/air mixing structure is of a mixing sound-attenuating design and includes a venturi having a perforated sidewall portion and being surrounded by a noise-damping housing chamber communicating with the interior of the venturi via its sidewall perforations. During use of the mixing structure, air is flowed through the venturi in a swirling pattern while fuel is transversely injected internally against the swirling air. The combustion structure includes a burner box housing into which the fuel/air mixture is flowed, combusted, and then discharged as hot combustion gas into and through the heat exchanger tubes. The fuel/air mixture entering the burner box housing initially passes through a non-uniformly perforated diffuser plate functioning to substantially alter in a predetermined manner the relative combustion gas flow rates through the heat exchanger tubes.Type: ApplicationFiled: July 29, 2022Publication date: December 1, 2022Inventors: Amin Akbarimonfared, Timothy J. Shellenberger, Robert Steven Neihouse, Scott Alan Willbanks, Darryl Farley, Nathan Taylor Whalen, Shawn Allan Reed
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Patent number: 11402093Abstract: A fuel-fired furnace incorporates specially designed fuel/air mixing and combustion structures. The fuel/air mixing structure is of a mixing sound-attenuating design and comprises a venturi having a perforated sidewall portion and being surrounded by a noise-damping housing chamber communicating with the interior of the venturi via its sidewall perforations. During use of the mixing structure, air is flowed through the venturi in a swirling pattern while fuel is transversely injected internally against the swirling air. The combustion structure comprises a burner box housing into which the fuel/air mixture is flowed, combusted, and then discharged as hot combustion gas into and through the heat exchanger tubes. The fuel/air mixture entering the burner box housing initially passes through a non-uniformly perforated diffuser plate functioning to substantially alter in a predetermined manner the relative combustion gas flow rates through the heat exchanger tubes.Type: GrantFiled: February 24, 2020Date of Patent: August 2, 2022Assignee: Rheem Manufacturing CompanyInventors: Amin Akbarimonfared, Timothy J. Shellenberger, Robert Steven Neihouse, Scott Alan Willbanks, Darryl Farley, Nathan Taylor Whalen, Shawn Allan Reed
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Publication number: 20220031906Abstract: An air sanitation device is disclosed. The air sanitation device can include a base section, a body section, and an air movement device configured to move air through at least a portion of the air sanitation device. The air sanitation device can move air from an inlet of the air sanitation device, and past an ultraviolet (UV) light source, and out an outlet of the air sanitation device. The air sanitation device can be configured to draw in air from within or below a breathing zone. The air sanitation device can be configured to draw in air from below the breathing zone and output sanitized air. The sanitized air can be outputted at an angle such that the sanitized air flows in a generally downward direction.Type: ApplicationFiled: August 5, 2021Publication date: February 3, 2022Inventors: Timothy J. Shellenberger, Troy E. Trant, Atilhan Manay, Shubham Srivastava
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Patent number: 11129918Abstract: An air sanitation device is disclosed. The air sanitation device can include a base section, a body section, and an air movement device configured to move air through at least a portion of the air sanitation device. The air sanitation device can move air from an inlet of the air sanitation device, and past an ultraviolet (UV) light source, and out an outlet of the air sanitation device. The air sanitation device can be configured to draw in air from within or below a breathing zone. The air sanitation device can be configured to draw in air from below the breathing zone and output sanitized air. The sanitized air can be outputted at an angle such that the sanitized air flows in a generally downward direction.Type: GrantFiled: October 7, 2020Date of Patent: September 28, 2021Assignee: Rheem Manufacturing CompanyInventors: Timothy J. Shellenberger, Troy E. Trant, Atilhan Manay, Shubham Srivastava
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Patent number: 10976048Abstract: To substantially reduce inequality in hot combustion flow rates through first and second heat exchanger tubes from a fuel-fired heating appliance burner box connected thereto and internally combusting a fuel/air mixture received therein from a source thereof to create the hot combustion gas, a perforated diffuser member having a non-uniform perforation pattern is provided. The fuel/air mixture is flowed through the perforated diffuser member into the interior of the burner box. The non-uniform perforation pattern of the diffuser member functions to alter relative combustion gas flow rates through the first and second heat exchanger tubes in a manner reducing an undesirable operating temperature differential therebetween.Type: GrantFiled: March 26, 2018Date of Patent: April 13, 2021Assignee: Rheem Manufacturing CompanyInventors: Amin Akbarimonfared, Timothy J. Shellenberger, Robert Steven Neihouse, Scott Alan Willbanks
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Publication number: 20200191388Abstract: A fuel-fired furnace incorporates specially designed fuel/air mixing and combustion structures. The fuel/air mixing structure is of a mixing sound-attenuating design and comprises a venturi having a perforated sidewall portion and being surrounded by a noise-damping housing chamber communicating with the interior of the venturi via its sidewall perforations. During use of the mixing structure, air is flowed through the venturi in a swirling pattern while fuel is transversely injected internally against the swirling air. The combustion structure comprises a burner box housing into which the fuel/air mixture is flowed, combusted, and then discharged as hot combustion gas into and through the heat exchanger tubes. The fuel/air mixture entering the burner box housing initially passes through a non-uniformly perforated diffuser plate functioning to substantially alter in a predetermined manner the relative combustion gas flow rates through the heat exchanger tubes.Type: ApplicationFiled: February 24, 2020Publication date: June 18, 2020Inventors: Amin Akbarimonfared, Timothy J. Shellenberger, Robert Steven Neihouse, Scott Alan Willbanks Alan Willbanks, Darryl Farley, Nathan Taylor Whalen, Shawn Allan Reed
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Publication number: 20200116351Abstract: A boiler can have a combustion chamber, a burner, a heat exchanger in fluid communication with the combustion chamber, and a flue for removing a combustion product from the boiler. The burner has a protruding taper shape such as a cone or similar shape. The protruding taper shape of the burner distributes heat to the heat exchanger more evenly than a cylindrical shaped burner thereby reducing heat losses at the combustion chamber wall and increasing the thermal efficiency. The protruding taper shape of the burner also reduces noise associated with the operation of the burner.Type: ApplicationFiled: December 6, 2019Publication date: April 16, 2020Inventors: Amin Akbarimonfared, Timothy J. Shellenberger, Leonard E. Chambers, Christopher Hertzberg, Juan Cervantes
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Patent number: 10571122Abstract: A fuel-fired furnace incorporates specially designed fuel/air mixing and combustion structures. The fuel/air mixing structure is of a mixing sound-attenuating design and comprises a venturi having a perforated sidewall portion and being surrounded by a noise-damping housing chamber communicating with the interior of the venturi via its sidewall perforations. During use of the mixing structure, air is flowed through the venturi in a swirling pattern while fuel is transversely injected internally against the swirling air. The combustion structure comprises a burner box housing into which the fuel/air mixture is flowed, combusted, and then discharged as hot combustion gas into and through the heat exchanger tubes. The fuel/air mixture entering the burner box housing initially passes through a non-uniformly perforated diffuser plate functioning to substantially alter in a predetermined manner the relative combustion gas flow rates through the heat exchanger tubes.Type: GrantFiled: July 13, 2017Date of Patent: February 25, 2020Assignee: Rheem Manufacturing CompanyInventors: Amin Akbarimonfared, Timothy J. Shellenberger, Robert Steven Neihouse, Scott Alan Willbanks, Darryl Farley, Nathan Taylor Whalen, Shawn Allan Reed
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Patent number: 10281143Abstract: A fuel-fired heating appliance comprises a burner and a first housing adjacent the burner so that an interior of the first housing receives combustion gasses from combustion at the burner. A heat exchanger defines a second housing with an inlet proximate an outlet of the first housing so that the inlet of the second housing receives combustion gasses from the outlet of the first housing, and wherein the first and second housings attach at an interface. A barrier extends within, and across an interface between, the outlet of the first housing and the inlet of the second housing and defines a thermal resistance that inhibits heat transfer from the combustion gasses to the interface.Type: GrantFiled: January 13, 2017Date of Patent: May 7, 2019Assignee: RHEEM MANUFACTURING COMPANYInventors: Mickey E. Batson, Darryl J. Farley, Reza Khatami, Divakar Mantha, Tyson J. Cogburn, Nathan T. Whalen, Qian Zhang, Shawn A. Reed, Timothy J. Shellenberger
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Publication number: 20180216817Abstract: To substantially reduce inequality in hot combustion flow rates through first and second heat exchanger tubes from a fuel-fired heating appliance burner box connected thereto and internally combusting a fuel/air mixture received therein from a source thereof to create the hot combustion gas, a perforated diffuser member having a non-uniform perforation pattern is provided. The fuel/air mixture is flowed through the perforated diffuser member into the interior of the burner box. The non-uniform perforation pattern of the diffuser member functions to alter relative combustion gas flow rates through the first and second heat exchanger tubes in a manner reducing an undesirable operating temperature differential therebetween.Type: ApplicationFiled: March 26, 2018Publication date: August 2, 2018Inventors: Amin Akbarimonfared, Timothy J. Shellenberger, Robert Steven Neihouse, Scott Alan Willbanks
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Publication number: 20180202652Abstract: A fuel-fired heating appliance comprises a burner and a first housing adjacent the burner so that an interior of the first housing receives combustion gasses from combustion at the burner. A heat exchanger defines a second housing with an inlet proximate an outlet of the first housing so that the inlet of the second housing receives combustion gasses from the outlet of the first housing, and wherein the first and second housings attach at an interface. A barrier extends within, and across an interface between, the outlet of the first housing and the inlet of the second housing and defines a thermal resistance that inhibits heat transfer from the combustion gasses to the interface.Type: ApplicationFiled: January 13, 2017Publication date: July 19, 2018Inventors: Mickey E. Batson, Darryl J. Farley, Reza Khatami, Divakar Mantha, Tyson J. Cogburn, Nathan T. Whalen, Qian Zhang, Shawn A. Reed, Timothy J. Shellenberger
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Patent number: 9951945Abstract: To substantially reduce inequality in hot combustion flow rates through first and second heat exchanger tubes from a fuel-fired heating appliance burner box connected thereto and internally combusting a fuel/air mixture received therein from a source thereof to create the hot combustion gas, a perforated diffuser member having a non-uniform perforation pattern is provided. The fuel/air mixture is flowed through the perforated diffuser member into the interior of the burner box. The non-uniform perforation pattern of the diffuser member functions to alter relative combustion gas flow rates through the first and second heat exchanger tubes in a manner reducing an undesirable operating temperature differential therebetween.Type: GrantFiled: July 22, 2014Date of Patent: April 24, 2018Assignee: RHEEM MANUFACTURING COMPANYInventors: Amin Akbarimonfared, Timothy J. Shellenberger, Robert Steven Neihouse, Scott Alan Willbanks
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Publication number: 20170328561Abstract: A fuel-fired furnace incorporates specially designed fuel/air mixing and combustion structures. The fuel/air mixing structure is of a mixing sound-attenuating design and comprises a venturi having a perforated sidewall portion and being surrounded by a noise-damping housing chamber communicating with the interior of the venturi via its sidewall perforations. During use of the mixing structure, air is flowed through the venturi in a swirling pattern while fuel is transversely injected internally against the swirling air. The combustion structure comprises a burner box housing into which the fuel/air mixture is flowed, combusted, and then discharged as hot combustion gas into and through the heat exchanger tubes. The fuel/air mixture entering the burner box housing initially passes through a non-uniformly perforated diffuser plate functioning to substantially alter in a predetermined manner the relative combustion gas flow rates through the heat exchanger tubes.Type: ApplicationFiled: July 13, 2017Publication date: November 16, 2017Inventors: Amin Akbarimonfared, Timothy J. Shellenberger, Robert Steven Neihouse, Scott Alan Willbanks, Darryl Farley, Nathan Taylor Whalen, Shawn Allan Reed
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Patent number: 9772119Abstract: A burner assembly for a fuel-fired heating appliance that defines a direction of flow of a fuel and air mixture in a flow path. The burner assembly comprises a plurality burners defined in a unitary mesh structure. Each burner defines at least one peak at a distal end thereof in a direction of flow of a fuel and air mixture. The burner assembly also comprises a diffuser plate having a plurality of perforated areas defined therein and one or more imperforate areas between respective perforated areas of the plurality of perforated areas. The perforated areas respectively correspond to the plurality of burners. The diffuser plate is disposed in a fixed position upstream of the mesh structure so that, when the burner assembly is disposed in the flow path, a respective flow of the fuel and air mixture is directed from each of the plurality of perforated areas to its corresponding burner of the plurality of burners.Type: GrantFiled: August 6, 2014Date of Patent: September 26, 2017Assignee: RHEEM MANUFACTURING COMPANYInventors: Timothy J. Shellenberger, Amin Akbarimonfared, Trent E. Thompson, Darryl J. Farley, Nathan T. Whalen
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Patent number: 9739483Abstract: A fuel-fired furnace incorporates specially designed fuel/air mixing and combustion structures. The fuel/air mixing structure is of a mixing sound-attenuating design and comprises a venturi having a perforated sidewall portion and being surrounded by a noise-damping housing chamber communicating with the interior of the venturi via its sidewall perforations. During use of the mixing structure, air is flowed through the venturi in a swirling pattern while fuel is transversely injected internally against the swirling air. The combustion structure comprises a burner box housing into which the fuel/air mixture is flowed, combusted, and then discharged as hot combustion gas into and through the heat exchanger tubes. The fuel/air mixture entering the burner box housing initially passes through a non-uniformly perforated diffuser plate functioning to substantially alter in a predetermined manner the relative combustion gas flow rates through the heat exchanger tubes.Type: GrantFiled: November 19, 2013Date of Patent: August 22, 2017Assignee: RHEEM MANUFACTURING COMPANYInventors: Amin Akbarimonfared, Timothy J. Shellenberger, Robert Steven Neihouse, Scott Alan Willbanks, Darryl Farley, Nathan Taylor Whalen, Shawn Allan Reed
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Patent number: 9335066Abstract: A water heating system including a water container having a cold water inlet that connects to a water supply, a hot water outlet, a water heater outlet and a water heater inlet; an instantaneous water heater mounted to the water container and having a tank supply inlet connected to the water heater outlet, a tank supply outlet connected to the water heater inlet, a burner, and a heat exchanger located adjacent the burner between the tank supply inlet and the tank supply outlet; a pump connected between the water container and the instantaneous water heater that moves water between the water container and the instantaneous water heater; and a controller that operates the pump and the burner.Type: GrantFiled: January 24, 2013Date of Patent: May 10, 2016Assignee: Rinnai America CorporationInventors: Scott Gilman Humphrey, Timothy J. Shellenberger, James Stuart York
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Publication number: 20160040905Abstract: A burner assembly for a fuel-fired heating appliance that defines a direction of flow of a fuel and air mixture in a flow path. The burner assembly comprises a plurality burners defined in a unitary mesh structure. Each burner defines at least one peak at a distal end thereof in a direction of flow of a fuel and air mixture. The burner assembly also comprises a diffuser plate having a plurality of perforated areas defined therein and one or more imperforate areas between respective perforated areas of the plurality of perforated areas. The perforated areas respectively correspond to the plurality of burners. The diffuser plate is disposed in a fixed position upstream of the mesh structure so that, when the burner assembly is disposed in the flow path, a respective flow of the fuel and air mixture is directed from each of the plurality of perforated areas to its corresponding burner of the plurality of burners.Type: ApplicationFiled: August 6, 2014Publication date: February 11, 2016Inventors: Timothy J. Shellenberger, Amin Akbarimonfared, Trent E. Thompson, Darryl J. Farley, Nathan T. Whalen
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Patent number: 9188372Abstract: An air conditioning system condensing unit has a specially designed chassis providing enhanced serviceability access to various air conditioning components operatively disposed therein. A removable vertical peripheral outer side wall section of the chassis underlies a removable peripheral top side wall section thereof. Removal of these two side wall sections creates in the chassis an opening conveniently providing both horizontal and vertical service access to the air conditioning components within the interior of the chassis.Type: GrantFiled: December 18, 2012Date of Patent: November 17, 2015Assignee: RHEEM MANUFACTURING COMPANYInventors: Gregory Michael Thomas, Timothy J. Shellenberger
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Publication number: 20150192291Abstract: Installed in a fuel-fired heating appliance is a specially designed burner assembly operative to receive and combust a pre-mixed flow of fuel and air to create therefrom a spaced apart plurality of flames which are aligned with and flow directly into the inlets of a corresponding spaced plurality of heat exchanger tubes. The flames create within the tubes hot combustion gases that transfer combustion heat to a supply fluid flowed externally across the tubes. The burners are of a hollow perforate metal construction, are mounted on and forwardly project from a support structure toward the tube inlets, and have rearwardly facing open inlet ends that receive the pre-mixed flow of fuel and air. In one illustrated embodiment thereof, the burners have conical configurations, and in another illustrated embodiment have generally dome-shaped configurations. Via a flame carryover structure, a single igniter is utilized to ignite all of the burners.Type: ApplicationFiled: January 6, 2014Publication date: July 9, 2015Applicant: Rheem Manufacturing CompanyInventors: Amin Akbarimonfared, Timothy J. Shellenberger, Darryl J. Farley, Nathan T. Whalen, Trent E. Thompson