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).

  • Publication number: 20230392825
    Abstract: 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: Application
    Filed: August 21, 2023
    Publication date: December 7, 2023
    Inventors: Zhiwei Huang, Curtis A. Trammell
  • Publication number: 20230324103
    Abstract: 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: Application
    Filed: June 12, 2023
    Publication date: October 12, 2023
    Inventors: Curtis A. Trammell, John L. McElvany
  • Patent number: 11759742
    Abstract: 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: Grant
    Filed: February 27, 2019
    Date of Patent: September 19, 2023
    Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLP
    Inventors: Zhiwei Huang, Curtis A. Trammell
  • Patent number: 11754331
    Abstract: 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: Grant
    Filed: October 25, 2019
    Date of Patent: September 12, 2023
    Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLP
    Inventors: Curtis A. Trammell, Curtis W. Caskey, Roderick R. Sentz, Zhiwei Huang, Gregory Ulizio
  • Patent number: 11732924
    Abstract: 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: Grant
    Filed: February 27, 2019
    Date of Patent: August 22, 2023
    Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLP
    Inventors: Zhiwei Huang, Curtis A. Trammell
  • Patent number: 11674740
    Abstract: 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: Grant
    Filed: December 20, 2019
    Date of Patent: June 13, 2023
    Assignee: Johnson Controls Tyco IP Holdings LLP
    Inventors: Curtis A. Trammell, John L. McElvany
  • Patent number: 11674741
    Abstract: 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: Grant
    Filed: December 20, 2019
    Date of Patent: June 13, 2023
    Assignee: Johnson Controls Tyco IP Holdings LLP
    Inventors: Curtis A. Trammell, John L. McElvany
  • Patent number: 11635214
    Abstract: 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: Grant
    Filed: January 14, 2020
    Date of Patent: April 25, 2023
    Assignee: Johnson Controls Tyco IP Holdings LLP
    Inventors: Curtis A. Trammell, Anthony J. Reardon, Hector I. Grajales Torres
  • Patent number: 11542723
    Abstract: 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: Grant
    Filed: September 28, 2018
    Date of Patent: January 3, 2023
    Assignee: Johnson Controls Tyco IP Holdings LLP
    Inventors: Curtis A. Trammell, John L. McElvany
  • Patent number: 11498162
    Abstract: 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: Grant
    Filed: September 28, 2018
    Date of Patent: November 15, 2022
    Assignee: Johnson Controls Tyco IP Holdings LLP
    Inventors: William M. Harris, Curtis A. Trammell, Danielle R. Rosendale, David C. Rimmer
  • Patent number: 11384594
    Abstract: 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: Grant
    Filed: November 9, 2020
    Date of Patent: July 12, 2022
    Assignee: Johnson Controls Tyco IP Holdings LLP
    Inventors: John L. McElvany, Sriram Ramanujam, Uttam Kumar Sharma, Curtis A. Trammell
  • Patent number: 11255572
    Abstract: 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: Grant
    Filed: January 7, 2020
    Date of Patent: February 22, 2022
    Assignee: Johnson Controls Technology Company
    Inventors: John L. McElvany, Curtis A. Trammell
  • Publication number: 20220003504
    Abstract: 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: Application
    Filed: September 16, 2021
    Publication date: January 6, 2022
    Inventors: Neelkanth S. Gupte, Zhiwei Huang, Curtis A. Trammell
  • Publication number: 20210190409
    Abstract: 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: Application
    Filed: December 20, 2019
    Publication date: June 24, 2021
    Inventors: Curtis A. Trammell, John L. McElvany
  • Publication number: 20210190332
    Abstract: 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: Application
    Filed: January 14, 2020
    Publication date: June 24, 2021
    Inventors: Curtis A. Trammell, Anthony J. Reardon, Hector I. Grajales Torres
  • Publication number: 20210190408
    Abstract: 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: Application
    Filed: December 20, 2019
    Publication date: June 24, 2021
    Inventors: Curtis A. Trammell, John L. McElvany
  • Publication number: 20210190371
    Abstract: 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: Application
    Filed: January 7, 2020
    Publication date: June 24, 2021
    Inventors: John L. McElvany, Curtis A. Trammell
  • Publication number: 20210123649
    Abstract: 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: Application
    Filed: October 25, 2019
    Publication date: April 29, 2021
    Inventors: Curtis A. Trammell, Curtis W. Caskey, Roderick R. Sentz, Zhiwei Huang, Gregory Ulizio
  • Publication number: 20210054686
    Abstract: 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: Application
    Filed: November 9, 2020
    Publication date: February 25, 2021
    Inventors: John L. McElvany, Sriram Ramanujam, Uttam Kumar Sharma, Curtis A. Trammell
  • Patent number: 10829986
    Abstract: 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: Grant
    Filed: June 7, 2018
    Date of Patent: November 10, 2020
    Assignee: Johnson Controls Technology Company
    Inventors: John L. McElvany, Sriram Ramanujam, Uttam Kumar Sharma, Curtis A. Trammell