Patents by Inventor Lee G. Tetu
Lee G. Tetu 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: 11732716Abstract: A method of assembling a compressor system includes attaching at least two pulsation damper stages to a discharge port on a compressor, and attaching additional pulsation dampening stages if additional stages are desired. A compressor and discharge system is also disclosed.Type: GrantFiled: December 6, 2019Date of Patent: August 22, 2023Assignee: Carrier CorporationInventor: Lee G. Tetu
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Publication number: 20210293444Abstract: A system and method to moderate an airflow in a heating, ventilation, and air conditioning (HVAC) unit, including an evaporator portion disposed in a housing, the evaporator portion including at least one blower disposed within a plenum in airflow communication with a first heat exchanger, the plenum including at least one plenum wall, a vortex control device operably coupled to the at least one plenum wall.Type: ApplicationFiled: March 1, 2021Publication date: September 23, 2021Inventors: Mina Adel Zaki, Julian Winkler, Lee G. Tetu, Mark W. Wilson
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Publication number: 20210115926Abstract: A method of assembling a compressor system includes attaching at least two pulsation damper stages to a discharge port on a compressor, and attaching additional pulsation dampening stages if additional stages are desired. A compressor and discharge system is also disclosed.Type: ApplicationFiled: December 6, 2019Publication date: April 22, 2021Inventor: Lee G. Tetu
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Publication number: 20200240431Abstract: An axial flow fan includes a hub rotatable about a fan axis and a plurality of fan blades mounted to the hub. One of the plurality of fan blades includes at least one wave extending in a span wise direction over the fan blade and at least one serration extending along a trailing edge of the fan blade. The at least one wave and the at least one serration are arranged at a location between 40% and 100% of a span of the fan blade.Type: ApplicationFiled: September 27, 2018Publication date: July 30, 2020Inventors: Peter R. Bushnell, Lee G. Tetu, Jackie S. Anderson
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Patent number: 10161658Abstract: A condenser module configured for use in a condenser is provided including a housing having a first longitudinal side that defines a first air inlet and an opposing second longitudinal side that defines a second air inlet. A heat exchanger assembly is positioned within the housing. The heat exchanger assembly includes at least one heat exchanger coil. A cross-section of the heat exchanger assembly is generally constant between a front side of the housing and an opposite back side of the housing. At least one of the front surface and the back surface is configured to abut an adjacent contact module. A fan assembly includes at least one fan generally aligned with a single heat exchanger coil in the heat exchanger assembly.Type: GrantFiled: February 27, 2014Date of Patent: December 25, 2018Assignee: CARRIER CORPORATIONInventors: Jackie S. Russo, Lee G. Tetu
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Publication number: 20180299205Abstract: A heat exchanger is provided including a first header, a second header, and a plurality of heat exchange tubes arranged in a spaced parallel relationship and fluidly coupling the first and second headers. At least one of the first header, second header and the plurality of heat exchange tubes includes a bend. The heat exchanger having an aspect ratio between about 2 and 6 after formation of the bend.Type: ApplicationFiled: October 12, 2015Publication date: October 18, 2018Inventors: Charbel Rahhal, Kazuo Saito, Michael F. Taras, Tobias H. Sienel, Arindom Joardar, Lee G. Tetu, Jackie S. Anderson
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Patent number: 9903627Abstract: A method of operating an air conditioning system includes cooling a selected space with the air conditioning system. The air conditioning system includes two or more compressors and two or more crank case heaters. Each crank case heater of the two or more crank case heaters is operably connected to a compressor of the two or more compressors. Operation of the two or more compressors is stopped, thus initiating operation of the two or more crank case heaters. The air conditioning system is switched to a conservation mode, including de-powering at least one compressor of the two or more compressors and a connected at least one crank case heater or the two or more crank case heaters.Type: GrantFiled: November 5, 2013Date of Patent: February 27, 2018Assignee: CARRIER CORPORATIONInventors: Eric B. Fraser, Algirdas Bielskus, Eugene Duane Daddis, Jr., Lee G. Tetu
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Publication number: 20160033180Abstract: A condenser module configured for use in a condenser is provided including a housing having a first longitudinal side that defines a first air inlet and an opposing second longitudinal side that defines a second air inlet. A heat exchanger assembly is positioned within the housing. The heat exchanger assembly includes at least one heat exchanger coil. A cross-section of the heat exchanger assembly is generally constant between a front side of the housing and an opposite back side of the housing. At least one of the front surface and the back surface is configured to abut an adjacent contact module. A fan assembly includes at least one fan generally aligned with a single heat exchanger coil in the heat exchanger assembly.Type: ApplicationFiled: February 27, 2014Publication date: February 4, 2016Inventors: Jackie S. Russo, Lee G. Tetu
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Patent number: 8960179Abstract: An air treatment module includes an air plenum, a heat exchanger tube and a bypass duct. The bypass duct has an inlet opening in flow communication with the air plenum in juxtaposition with a selected region of the heat exchanger and an outlet opening in flow communication with a zone of lower air pressure. The presence of the bypass duct improves air flow over the heat exchanger tube in the selected region.Type: GrantFiled: February 17, 2010Date of Patent: February 24, 2015Assignee: Carrier CorporationInventors: Lei Yu, Lee G. Tetu, Brian D. Videto
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Publication number: 20140124166Abstract: A method of operating an air conditioning system includes cooling a selected space with the air conditioning system. The air conditioning system includes two or more compressors and two or more crank case heaters. Each crank case heater of the two or more crank case heaters is associated with a compressor of the two or more compressors. Operation of the two or more compressors is stopped, thus initiating operation of the two or more crank case heaters. The air conditioning system is switched to a conservation mode, including de-powering at least one compressor of the two or more compressors and an associated at least one crank case heater or the two or more crank case heaters thereby reducing energy consumption of the two or more crank case heaters.Type: ApplicationFiled: November 5, 2013Publication date: May 8, 2014Applicant: Carrier CorporationInventors: Eric B. Fraser, Algirdas Bielskus, Eugene Duane Daddis, Jr., Lee G. Tetu
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Patent number: 8584664Abstract: An inducer fan assembly includes a flow collector piece having a motor support surface, a toroidal collector, and a discharge region extending tangentially from the collector. A fan rotor is rotatably mounted relative to the motor support surface. The fan rotor includes a hub surface, and an outer circumferential edge. The fan rotor further includes a plurality of blades that extend from the hub surface. The plurality of blades extend from a leading edge to a trailing edge that extends beyond the outer circumferential edge. The plurality of blades include a first height and a second height that define a blade tip revolved contour. The collector is arranged radially outward from and axially off-set from the hub surface. An inlet casing piece is mounted to the flow collector piece. The inlet casing piece includes a contour that is substantially similar to the blade tip revolved contour of the fan rotor.Type: GrantFiled: September 14, 2011Date of Patent: November 19, 2013Assignee: Carrier CorporationInventors: Mehmet N. Sarimurat, Peter R. Bushnell, Lee G. Tetu
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Publication number: 20120090600Abstract: An inducer fan assembly includes a flow collector piece having a motor support surface, a toroidal collector, and a discharge region extending tangentially from the collector. A fan rotor is rotatably mounted relative to the motor support surface. The fan rotor includes a hub surface, and an outer circumferential edge. The fan rotor further includes a plurality of blades that extend from the hub surface. The plurality of blades extend from a leading edge to a trailing edge that extends beyond the outer circumferential edge. The plurality of blades include a first height and a second height that define a blade tip revolved contour. The collector is arranged radially outward from and axially off-set from the hub surface. An inlet casing piece is mounted to the flow collector piece. The inlet casing piece includes a contour that is substantially similar to the blade tip revolved contour of the fan rotor.Type: ApplicationFiled: September 14, 2011Publication date: April 19, 2012Applicant: CARRIER CORPORATIONInventors: Mehmet N. Sarimurat, Peter R. Bushnell, Lee G. Tetu
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Publication number: 20120037345Abstract: An air treatment module includes an air plenum, a heat exchanger tube and a bypass duct. The bypass duct has an inlet opening in flow communication with the air plenum in juxtaposition with a selected region of the heat exchanger and an outlet opening in flow communication with a zone of lower air pressure. The presence of the bypass duct improves air flow over the heat exchanger tube in the selected region.Type: ApplicationFiled: February 17, 2010Publication date: February 16, 2012Applicant: CARRIER CORPORATIONInventors: Lei Yu, Lee G. Tetu, Brian D. Videto
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Patent number: 8021126Abstract: A compressor has first and second enmeshed rotors: rotating about first and second axes. The first rotor is supported by a bearing system carried by a bearing case. The bearing case has at least a first port to a discharge plenum. A first sound-absorbing material is positioned within the first port.Type: GrantFiled: October 20, 2004Date of Patent: September 20, 2011Assignee: Carrier CorporationInventors: Vishnu M. Sishtla, Lee G. Tetu, William P. Patrick
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Publication number: 20100263391Abstract: A process for controlling operation of a heating, ventilation and air conditioning system broadly comprises providing a heating, ventilation and air conditioning system having an evaporator, a condenser, a compressor having an inlet and an outlet, and at least one flow control device; measuring a performance parameter of the heating, ventilation and air conditioning system; determining a performance parameter measurement of the flow indicative of onset of surge; determining a surge line of the heating, ventilation and air conditioning system based upon the performance parameter measurement; and independently controlling the at least one flow control device based upon the performance parameter to mitigate an onset of the surge.Type: ApplicationFiled: December 14, 2008Publication date: October 21, 2010Applicant: CARRIER CORPORATIONInventors: Lee G. Tetu, Joost Brasz
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Publication number: 20090060759Abstract: A compressor has first and second enmeshed rotors: rotating about first and second axes. The first rotor is supported by a bearing system carried by a bearing case. The bearing case has at least a first port to a discharge plenum. A first sound-absorbing material is positioned within the first port.Type: ApplicationFiled: October 20, 2004Publication date: March 5, 2009Inventors: Vishnu M. Sishtla, Lee G. Tetu, William P. Patrick
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Patent number: 7121814Abstract: A compressor includes a housing and one or more working elements. A muffler is located downstream of the discharge plenum. A centerbody is located in the discharge plenum upstream of the muffler spanning a major portion of a length between a bearing case and the muffler.Type: GrantFiled: September 30, 2004Date of Patent: October 17, 2006Assignee: Carrier CorporationInventors: David M. Rockwell, Lee G. Tetu
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Patent number: 6976833Abstract: A screw compressor is provided with a discharge chamber that receives alternating flows of compressed fluid from two compression chambers located on opposed sides of the screw compressor. The discharge chamber is provided with a central baffle plate separating the two flows. The baffle plate changes the fluid frequency of the system, and ensures that the fluid system will not operate at a frequency that approaches the natural frequency of the overall compressor, thus reducing undesirable vibrations. The baffle plate also reduces the magnitude of the fluctuations and the resultant noise.Type: GrantFiled: November 17, 2003Date of Patent: December 20, 2005Assignee: Carrier CorporationInventors: Mark A. Daniels, Lee G Tetu
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Patent number: D901669Type: GrantFiled: September 29, 2017Date of Patent: November 10, 2020Assignee: CARRIER CORPORATIONInventors: Peter R. Bushnell, Lee G. Tetu, Jackie S. Anderson
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Patent number: D916269Type: GrantFiled: September 29, 2020Date of Patent: April 13, 2021Assignee: CARRIER CORPORATIONInventors: Peter R. Bushnell, Lee G. Tetu, Jackie S. Anderson