Patents by Inventor Mark E. Marler

Mark E. Marler 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).

  • Patent number: 10392966
    Abstract: A gas turbine engine and a retaining ring are disclosed. The gas turbine engine includes a rotating disc assembly, including a rotating disc, a cover plate, and a retaining ring disposed between the rotating disc and the cover plate, wherein the retaining ring axially retains the rotating disc and the cover plate, the retaining ring including a rotating disc face to interface with the rotating disc; a cover plate face to interface with the cover plate; and an end gap portion defining an end gap, wherein at least one of the rotating disc face, the cover plate face, and the end gap portion includes a stress reducing feature.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: August 27, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Joseph T. Caprario, Noah Wadsworth, Mark E. Marler, James P. Allore, Elizabeth F. Vinson
  • Patent number: 10309224
    Abstract: A spring damper includes a split ring body. The split ring body defines a center and a circular gap separating opposed first and second end portions of the split ring body. The first and second end portions are connected by a split ring body segment that is evenly spaced from the center. At least one of the first and second end portions is unevenly spaced from the center in relation to the segment that is evenly spaced with respect to the center.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: June 4, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Mark E. Marler, Megan Phillips
  • Publication number: 20180087397
    Abstract: A gas turbine engine and a retaining ring are disclosed. The gas turbine engine includes a rotating disc assembly, including a rotating disc, a cover plate, and a retaining ring disposed between the rotating disc and the cover plate, wherein the retaining ring axially retains the rotating disc and the cover plate, the retaining ring including a rotating disc face to interface with the rotating disc; a cover plate face to interface with the cover plate; and an end gap portion defining an end gap, wherein at least one of the rotating disc face, the cover plate face, and the end gap portion includes a stress reducing feature.
    Type: Application
    Filed: September 23, 2016
    Publication date: March 29, 2018
    Inventors: Joseph T. Caprario, Noah Wadsworth, Mark E. Marler, James P. Allore, Elizabeth F. Vinson
  • Publication number: 20160047270
    Abstract: A spring damper includes a split ring body. The split ring body defines a center and a circular gap separating opposed first and second end portions of the split ring body. The first and second end portions are connected by a split ring body segment that is evenly spaced from the center. At least one of the first and second end portions is unevenly spaced from the center in relation to the segment that is evenly spaced with respect to the center.
    Type: Application
    Filed: May 18, 2015
    Publication date: February 18, 2016
    Inventors: Mark E. Marler, Megan Phillips
  • Publication number: 20100293962
    Abstract: A CHP system can include one or more heat sources generating heat output and producing emissions. The CHP system can further include one or more power converters configured to convert the heat into a useful power output. The power converters can deliver the balance of heat to one or more thermally-activated devices (TADs) configured to convert the heat into a useful thermal (heating and cooling) output. The method for configuring the CHP system can comprise the steps of: representing the useful power output by the power converters as a function of the heat output by the heat sources; representing the useful thermal output by the TADs as a function of the heat output by the heat sources; representing the specific emission output as a function of the heat output by the heat sources; and determining the values of the individual heat source heat output which are sufficient to attain the pre-defined levels for useful power output and useful thermal output, while meeting the regulated specific emission levels.
    Type: Application
    Filed: April 28, 2010
    Publication date: November 25, 2010
    Applicant: CARRIER CORPORATION
    Inventors: Timothy C. Wagner, Alexander Chen, Mark E. Marler
  • Patent number: 7748501
    Abstract: An elevator system design incorporates a belt having a jacket coating a plurality of elongate load bearing members such as steel cords. The jacket includes a plurality of spaced grooves on at least one side of the belt. The width of the grooves and the size of at least the drive sheave in the system are selected so that a ratio of the groove width to the sheave diameter is within a selected range. In one example, the ratio preferably is less than about 0.05. The grooves also preferably include a fillet at the edges of the grooves where the grooves meet with the sheave-engaging surface on the belt jacket.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: July 6, 2010
    Assignee: Otis Elevator Company
    Inventors: Mark E. Marler, Xiaodong Luo
  • Patent number: 7275393
    Abstract: Turbulators are disclosed for use in a high-stage generator for an exhaust-fired absorption chiller/heater. The turbulators are designed to minimize pressure drop across the turbulator, and thus minimize the efficiency loss to the exhaust source. One turbulator design has a number of flanges extending at a non-normal angle to a central web. Further, some of the flanges have cutout portions. The overall turbulator design is intended to minimize wake downstream of the turbulator blades, which could otherwise cause undesirable pressure drop. A second turbulator design incorporates flanges that extend at a normal angle relative to the central web, but wherein the flanges have a non-rectangular cross-sectional shape. Again, the goal of the turbulator designs here is to minimize wake, and potential pressure drop.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: October 2, 2007
    Assignee: UTC Power, LLC
    Inventors: Sunghan Jung, Jifeng Zhang, Timothy C. Wagner, Mark E. Marler, Fabio P. Bertolotti, Michael K. Sahm, Jinsang Ryu
  • Patent number: 7273071
    Abstract: A control for controlling the amount of heated fluid entering the inlet of the driving heat source for a refrigerant absorption cycle is controlled to vary the relative amount of heated fluid entering the driving heat source inlet, and being dumped to atmosphere. Preferably, a diverter valve is utilized such that a first valve body (40) communicates the flow into the driving heat source inlet, and moves in opposition to a second valve body (46) controlling the flow through the exhaust. The two valves bodies (40, 46) are preferably mechanically linked. Since the heated fluid is not allowed to enter the refrigerant absorption cycle as its drive heating source, no additional hardware and control for dumping excess heat is necessary within the refrigerant absorption cycle. A computer control preferably drives the first valve to a precise position and the linkage ensures the second valve is also received at a precise position.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: September 25, 2007
    Assignee: UTC Power, LLC
    Inventors: Mark E. Marler, Sunghan Jung, Timothy C. Wagner, Jinsang Ryu
  • Patent number: 7117686
    Abstract: Turbulators are disclosed for use in a high-stage generator for an exhaust-fired absorption chiller/heater. The turbulators are designed to minimize pressure drop across the turbulator, and thus minimize the efficiency loss to the exhaust source. One turbulator design has a number of flanges extending at a non-normal angle to a central web. Further, some of the flanges have cutout portions. The overall turbulator design is intended to minimize wake downstream of the turbulator blades, which could otherwise cause undesirable pressure drop. A second turbulator design incorporates flanges that extend at a normal angle relative to the central web, but wherein the flanges have a non-rectangular cross-sectional shape. Again, the goal of the turbulator designs here is to minimize wake, and potential pressure drop.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: October 10, 2006
    Assignee: UTC Power, LLC
    Inventors: Sunghan Jung, Jifeng Zhang, Timothy C. Wagner, Mark E. Marler, Fabio P. Bertolotti, Michael K. Sahm, Jinsang Ryu
  • Patent number: 7065976
    Abstract: This application discloses a control logic for maintaining a proper solution concentration within an absorption chiller. Further, safeguards are added to a system control to ensure robust operation when operated in a co-generation application with a heat source such as a micro-turbine, a reciprocating engine, etc. In such applications, in proper management of the heat flow into the chiller from such sources can result in crystallization of the absorption solution, which would be undesirable. Inventive control logic works to minimize such occurrences.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: June 27, 2006
    Assignee: UTC Power LLC
    Inventors: Vivek Halwan, Mark E. Marler
  • Patent number: 6983616
    Abstract: This application discloses a control logic for maintaining a proper solution concentration within an absorption chiller. Further, safeguards are added to a system control to ensure robust operation when operated in a co-generation application with a heat source such as a micro-turbine, a reciprocating engine, etc. In such applications, in proper management of the heat flow into the chiller from such sources can result in crystallization of the absorption solution, which would be undesirable. Inventive control logic works to minimize such occurrences.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: January 10, 2006
    Assignee: UTC Power, LLC
    Inventors: Vivek Halwan, Mark E. Marler
  • Patent number: 6983617
    Abstract: An absorption chiller system has an efficient start-up control that monitors system condition, and in particular the absorption solution temperature. The system limits the amount of heat delivered into the absorption chiller generator, to provide a gradual rise in the absorption solution temperature at start-up. In this manner, undesirable noise vibration and rapid thermal expansion, which may have occurred in the past is reduced or eliminated.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: January 10, 2006
    Assignee: UTC Power, LLC
    Inventors: Vivek Halwan, Mark E. Marler
  • Patent number: 6367581
    Abstract: A sound absorbing light fixture (42) installed in a surface system, such as an elevator ceiling system (40), of an enclosed interior, such as the interior (32) of an elevator cab (32) is presented. The light fixture (42) comprises a frame (46) disposed in fixed relationship to the surface system, the frame (46) having an interior rear surface and interior side surfaces extending outwardly from the rear surface to define a cavity (50). A light source (48) is supported by the frame (46) within the cavity (50). Additionally, a light diffuser (44) is disposed in fixed relationship to a front portion of the frame (46) between the light source (48) and the enclosed interior. The installed light fixture (42) enhances a sound absorption coefficient, e.g., above 0.6, of the surface system for a predetermined frequency range of sound energy, e.g., 300-600 Hz.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: April 9, 2002
    Assignee: Otis Elevator Company
    Inventors: Mark E. Marler, Charles C. Coffin, Brad Guilani, Heng-Yi Lai, Patricia A. Derwinski
  • Patent number: 5370156
    Abstract: The profile of the valve stop of a discharge valve is configured such that the portion facing the free length of the valve member has an increasing radius portion and a decreasing radius portion.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: December 6, 1994
    Inventors: Aldo A. Peracchio, Mark E. Marler, Keshava B. Kumar