Patents by Inventor Curtis A. Trammell
Curtis A. Trammell 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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Publication number: 20230392825Abstract: The present disclosure relates generally to air intake filter assemblies, and more particularly to air intake assemblies for an outdoor portion of a heating, ventilation, and/or air conditioning (HVAC) system. In an embodiment, a filter assembly is configured to filter an airflow entering an air intake of a HVAC unit. The filter assembly includes a first layer of a first coarse mesh, a second layer of a second coarse mesh, and a fine filter disposed between the first layer and the second layer. Additionally, the fine filter includes an upper level and a lower level with respect to the airflow, and wherein the lower level facilitates accumulation of fine debris captured from the airflow entering the air intake of the HVAC unit.Type: ApplicationFiled: August 21, 2023Publication date: December 7, 2023Inventors: Zhiwei Huang, Curtis A. Trammell
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Publication number: 20230324103Abstract: The present disclosure relates to a heating, ventilation, and/or air conditioning (HVAC) system that includes a drain pan. The drain pan is configured to collect condensate into a basin of the drain pan from an evaporator of the HVAC system and to direct the condensate from the basin via a drain port of the drain pan. A draining surface is formed in the basin and includes a compound slope including a first slope extending along a length of the drain pan and a second slope extending along a width of the drain pan. A raised surface extends from the draining surface and includes protrusions extending from a spine that extends along a side of the drain pan. The raised surface is configured to support the evaporator of the HVAC system.Type: ApplicationFiled: June 12, 2023Publication date: October 12, 2023Inventors: Curtis A. Trammell, John L. McElvany
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Patent number: 11759742Abstract: The present disclosure relates generally to air intake filter assemblies, and more particularly to air intake assemblies for an outdoor portion of a heating, ventilation, and/or air conditioning (HVAC) system. In an embodiment, a filter assembly is configured to filter an airflow entering an air intake of a HVAC unit. The filter assembly includes a support structure and a plurality of filter slats, each having a fine filtration material, each disposed within the support structure, and wherein the plurality of filter slats is configured in a louvered relationship and actuated between a closed configuration through which the airflow passes and an open configuration through which the airflow passes.Type: GrantFiled: February 27, 2019Date of Patent: September 19, 2023Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLPInventors: Zhiwei Huang, Curtis A. Trammell
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Patent number: 11754331Abstract: A heating, ventilation, and/or air conditioning (HVAC) system includes a condenser section and a plurality of panels configured to abut one another in a common plane to form a divider panel assembly. Each panel of the plurality of panels is sequentially insertable into and removable from the condenser section.Type: GrantFiled: October 25, 2019Date of Patent: September 12, 2023Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLPInventors: Curtis A. Trammell, Curtis W. Caskey, Roderick R. Sentz, Zhiwei Huang, Gregory Ulizio
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Patent number: 11732924Abstract: The present disclosure relates generally to air intake filter assemblies, and more particularly to air intake assemblies for an outdoor portion of a heating, ventilation, and/or air conditioning (HVAC) system. In an embodiment, a filter assembly is configured to filter an airflow entering an air intake of a HVAC unit. The filter assembly includes a first layer of a first coarse mesh, a second layer of a second coarse mesh, and a fine filter disposed between the first layer and the second layer. Additionally, the fine filter includes an upper level and a lower level with respect to the airflow, and wherein the lower level facilitates accumulation of fine debris captured from the airflow entering the air intake of the HVAC unit.Type: GrantFiled: February 27, 2019Date of Patent: August 22, 2023Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLPInventors: Zhiwei Huang, Curtis A. Trammell
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Patent number: 11674740Abstract: The present disclosure relates to a heating, ventilation, and/or air conditioning (HVAC) system that includes a drain pan. The drain pan is configured to collect condensate into a basin of the drain pan from an evaporator of the HVAC system and to direct the condensate from the basin via a drain port of the drain pan. A draining surface is formed in the basin and includes a compound slope including a first slope extending along a length of the drain pan and a second slope extending along a width of the drain pan. A raised surface extends from the draining surface and includes protrusions extending from a spine that extends along a side of the drain pan. The raised surface is configured to support the evaporator of the HVAC system.Type: GrantFiled: December 20, 2019Date of Patent: June 13, 2023Assignee: Johnson Controls Tyco IP Holdings LLPInventors: Curtis A. Trammell, John L. McElvany
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Patent number: 11674741Abstract: A heating, ventilation, and/or air conditioning (HVAC) unit includes a drain pan configured to collect condensate generated by the HVAC unit. The HVAC unit also includes a drain spout having a rigid outlet port coupled to the drain pan and a flexible conduit coupled to the rigid outlet port. The drain spout is adjustable between a first configuration configured to discharge the condensate from the HVAC unit via a first opening of the HVAC unit and a second configuration configured to discharge the condensate from the HVAC unit via a second opening of the HVAC unit.Type: GrantFiled: December 20, 2019Date of Patent: June 13, 2023Assignee: Johnson Controls Tyco IP Holdings LLPInventors: Curtis A. Trammell, John L. McElvany
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Patent number: 11635214Abstract: A heating, ventilation, and/or air conditioning (HVAC) unit includes an HVAC unit enclosure having a base pan. The base pan is sloped from an inner portion of the enclosure to an outer lateral edge of the base pan such that the base pan is configured to direct flow of liquid toward and over the outer lateral edge to flow off the base pan.Type: GrantFiled: January 14, 2020Date of Patent: April 25, 2023Assignee: Johnson Controls Tyco IP Holdings LLPInventors: Curtis A. Trammell, Anthony J. Reardon, Hector I. Grajales Torres
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Patent number: 11542723Abstract: A latch assembly for a heating, ventilation, and/or air conditioning (HVAC) enclosure includes a latch having a securement portion configured to couple to an access panel of the enclosure and having a rotational portion. The rotational portion has an engagement feature configured to engage with a tool face or a tool receptacle and the rotational portion has a first retainer adjacent to the engagement feature. The rotational portion is configured to rotate relative to the securement portion such that a locking portion of the rotational portion transitions between a closed configuration and an open configuration. The latch assembly includes a handle accessory having a handle engagement driver configured to engage with the engagement feature of the rotational portion along a first linking axis and having a second retainer configured to couple with the first retainer of the rotational portion along a second linking axis, transverse to the first linking axis.Type: GrantFiled: September 28, 2018Date of Patent: January 3, 2023Assignee: Johnson Controls Tyco IP Holdings LLPInventors: Curtis A. Trammell, John L. McElvany
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Patent number: 11498162Abstract: A heat exchanger includes a tube having a length and an outside boundary. The tube is configured to convey fluid therethrough to facilitate heat transfer, and the outside boundary of the tube having a bottom wall portion, a top wall portion opposing the bottom wall portion, and two side wall portions between the bottom wall portion and the top wall portion, in which a segment of the length of the tube has a plurality of dimples selectively placed outside of the bottom wall portion.Type: GrantFiled: September 28, 2018Date of Patent: November 15, 2022Assignee: Johnson Controls Tyco IP Holdings LLPInventors: William M. Harris, Curtis A. Trammell, Danielle R. Rosendale, David C. Rimmer
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Patent number: 11384594Abstract: The present disclosure relates to an HVAC system door assembly that includes a door that includes a panel having a first side and a second side opposite the first side, and a first seal circuit. The first seal circuit is disposed on the first side. The HVAC system door assembly also includes a door frame that includes a second seal circuit. HVAC system door assembly further includes a ridge projecting from one of the first seal circuit or the second seal circuit configured to align with and engage a central portion of the other of the first seal circuit or the second seal circuit when the door is in a closed position with respect to the door frame. The ridge includes a cross-sectional profile having a flattened peak section with sloping side sections that extend from boundaries of the flattened peak section to a base of the ridge.Type: GrantFiled: November 9, 2020Date of Patent: July 12, 2022Assignee: Johnson Controls Tyco IP Holdings LLPInventors: John L. McElvany, Sriram Ramanujam, Uttam Kumar Sharma, Curtis A. Trammell
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Patent number: 11255572Abstract: A heating, ventilation, and/or air conditioning (HVAC) unit includes a drain pan including a basin defined by a base and a plurality of side walls configured to collect condensate from an evaporator of the HVAC unit. The HVAC unit also includes a drain port disposed in the base of the basin and arranged such that the drain pan is configured to direct the condensate toward the drain port and out of the basin, a protruded portion extending from an outer surface of a side wall of the plurality of side walls, and a passage proximate to a top edge of the side wall of the plurality of side walls and configured to facilitate overflow of the condensate out of the basin and along the protruded portion.Type: GrantFiled: January 7, 2020Date of Patent: February 22, 2022Assignee: Johnson Controls Technology CompanyInventors: John L. McElvany, Curtis A. Trammell
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Publication number: 20220003504Abstract: Embodiments of the present disclosure are directed to a heat exchanger system that includes a conduit configured to flow a working fluid therethrough, where the conduit has a first portion, a second portion, and a bend directly coupling the first portion and the second portion, where the first portion includes a first header connection, the second portion includes a second header connection, and the bend is distal to the first header connection and the second header connection and a support plate coupled to the bend and positioned between the first portion and the second portion of the conduit.Type: ApplicationFiled: September 16, 2021Publication date: January 6, 2022Inventors: Neelkanth S. Gupte, Zhiwei Huang, Curtis A. Trammell
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Publication number: 20210190409Abstract: A heating, ventilation, and/or air conditioning (HVAC) unit includes a drain pan configured to collect condensate generated by the HVAC unit. The HVAC unit also includes a drain spout having a rigid outlet port coupled to the drain pan and a flexible conduit coupled to the rigid outlet port. The drain spout is adjustable between a first configuration configured to discharge the condensate from the HVAC unit via a first opening of the HVAC unit and a second configuration configured to discharge the condensate from the HVAC unit via a second opening of the HVAC unit.Type: ApplicationFiled: December 20, 2019Publication date: June 24, 2021Inventors: Curtis A. Trammell, John L. McElvany
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Publication number: 20210190332Abstract: A heating, ventilation, and/or air conditioning (HVAC) unit includes an HVAC unit enclosure having a base pan. The base pan is sloped from an inner portion of the enclosure to an outer lateral edge of the base pan such that the base pan is configured to direct flow of liquid toward and over the outer lateral edge to flow off the base pan.Type: ApplicationFiled: January 14, 2020Publication date: June 24, 2021Inventors: Curtis A. Trammell, Anthony J. Reardon, Hector I. Grajales Torres
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Publication number: 20210190408Abstract: The present disclosure relates to a heating, ventilation, and/or air conditioning (HVAC) system that includes a drain pan. The drain pan is configured to collect condensate into a basin of the drain pan from an evaporator of the HVAC system and to direct the condensate from the basin via a drain port of the drain pan. A draining surface is formed in the basin and includes a compound slope including a first slope extending along a length of the drain pan and a second slope extending along a width of the drain pan. A raised surface extends from the draining surface and includes protrusions extending from a spine that extends along a side of the drain pan. The raised surface is configured to support the evaporator of the HVAC system.Type: ApplicationFiled: December 20, 2019Publication date: June 24, 2021Inventors: Curtis A. Trammell, John L. McElvany
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Publication number: 20210190371Abstract: A heating, ventilation, and/or air conditioning (HVAC) unit includes a drain pan including a basin defined by a base and a plurality of side walls configured to collect condensate from an evaporator of the HVAC unit. The HVAC unit also includes a drain port disposed in the base of the basin and arranged such that the drain pan is configured to direct the condensate toward the drain port and out of the basin, a protruded portion extending from an outer surface of a side wall of the plurality of side walls, and a passage proximate to a top edge of the side wall of the plurality of side walls and configured to facilitate overflow of the condensate out of the basin and along the protruded portion.Type: ApplicationFiled: January 7, 2020Publication date: June 24, 2021Inventors: John L. McElvany, Curtis A. Trammell
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Publication number: 20210123649Abstract: A heating, ventilation, and/or air conditioning (HVAC) system includes a condenser section and a plurality of panels configured to abut one another in a common plane to form a divider panel assembly. Each panel of the plurality of panels is sequentially insertable into and removable from the condenser section.Type: ApplicationFiled: October 25, 2019Publication date: April 29, 2021Inventors: Curtis A. Trammell, Curtis W. Caskey, Roderick R. Sentz, Zhiwei Huang, Gregory Ulizio
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Publication number: 20210054686Abstract: The present disclosure relates to an HVAC system door assembly that includes a door that includes a panel having a first side and a second side opposite the first side, and a first seal circuit. The first seal circuit is disposed on the first side. The HVAC system door assembly also includes a door frame that includes a second seal circuit. HVAC system door assembly further includes a ridge projecting from one of the first seal circuit or the second seal circuit configured to align with and engage a central portion of the other of the first seal circuit or the second seal circuit when the door is in a closed position with respect to the door frame. The ridge includes a cross-sectional profile having a flattened peak section with sloping side sections that extend from boundaries of the flattened peak section to a base of the ridge.Type: ApplicationFiled: November 9, 2020Publication date: February 25, 2021Inventors: John L. McElvany, Sriram Ramanujam, Uttam Kumar Sharma, Curtis A. Trammell
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Patent number: 10829986Abstract: The present disclosure relates to an HVAC system door assembly that includes a door that includes a panel having a first side and a second side opposite the first side, and a first seal circuit. The first seal circuit is disposed on the first side. The HVAC system door assembly also includes a door frame that includes a second seal circuit. HVAC system door assembly further includes a ridge projecting from one of the first seal circuit or the second seal circuit configured to align with and engage a central portion of the other of the first seal circuit or the second seal circuit when the door is in a closed position with respect to the door frame. The ridge includes a cross-sectional profile having a flattened peak section with sloping side sections that extend from boundaries of the flattened peak section to a base of the ridge.Type: GrantFiled: June 7, 2018Date of Patent: November 10, 2020Assignee: Johnson Controls Technology CompanyInventors: John L. McElvany, Sriram Ramanujam, Uttam Kumar Sharma, Curtis A. Trammell