Patents by Inventor Wayne O. Forrest

Wayne O. Forrest 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: 10551099
    Abstract: An evaporator may be provided comprising a manifold, a plurality of micro-channel passageways, a distributor, and a separator. The manifold may comprise a shell defining a cavity. The plurality of micro-channel passageways may extend outwardly from the shell of the manifold, wherein the cavity may be in fluid communication with the plurality of micro-channel passageways. The distributor may comprise an inlet, an elongated body extending into the cavity of the manifold and defining a lumen, and a plurality of openings arranged on an outer surface of the elongated body and spaced along a length of the elongated body, wherein the openings may be configured to allow fluid communication between the lumen and the cavity of the manifold. The separator may be positioned between the plurality of openings within the cavity of the manifold.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: February 4, 2020
    Assignee: MAHLE International GmbH
    Inventors: Donald R Pautler, Douglas C Wintersteen, Neil A Walkowski, Longhu Li, Wayne O Forrest, Shrikant M Joshi
  • Patent number: 10126065
    Abstract: A heat exchanger assembly having a first manifold, a second manifold spaced from the first manifold, and a plurality of refrigerant tubes in hydraulic communication with the first manifold and the second manifold. The second manifold includes a first end, a second end opposite from the first end, and a refrigerant inlet adjacent the first end. The plurality of refrigerant tubes includes tube ports. A portion of the tube ports are selectively obstructed such that a refrigerant entering into the second manifold through the refrigerant inlet flows substantially uniformly across the plurality of refrigerant tubes from the second manifold to the first manifold. At least one of the obstructed tube ports includes an inserted sliver of braze amendable material, pinched closed, or formed by inserting a pin of reduced diameter into the selected ports and then squeezing the port from the outside to size it and then removing the pin.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: November 13, 2018
    Assignee: MAHLE International GmbH
    Inventors: Donald R. Pautler, Douglas C. Wintersteen, Neil A. Walkowski, Longhu Li, Wayne O. Forrest, Shrikant M. Joshi
  • Patent number: 9909818
    Abstract: The disclosure presents a heat exchanger assembly having a first manifold, a second manifold spaced from the first manifold, a plurality of refrigerant tubes extending between and in hydraulic communication with the first and second manifolds, a plurality of corrugated fins inserted between the plurality of refrigerant tubes, and a condensate extractor having a comb baffle portion with fingers inserted between the plurality of refrigerant tubes and a conveyance portion. The comb baffle portion is configured to extract condensate from between the plurality of refrigerant tubes and the conveyance portion is configured to convey condensate away from the heat exchanger assembly.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: March 6, 2018
    Assignee: MAHLE International GmbH
    Inventors: Henry C. Goodman, Douglas C. Wintersteen, Yanping Xia, Joseph B. Czach, Joel T. Hambruch, Wayne O. Forrest, Shrikant M. Joshi, David E. Samuelson, Donald R. Pautler, Russell S. Johnson
  • Patent number: 9746232
    Abstract: The disclosure presents a heat exchanger assembly for a heat pump system, having a heated condensate drainage system. The heat exchanger assembly includes a manifold with a plurality of pins extending substantially in the direction of gravity. A condensate drainage tray is positioned beneath the manifold. The drainage tray includes a plurality of drainage holes corresponding with the number and position of the pins. The pins extend from the manifold and through the corresponding the drainage holes of the drainage tray. Each of the plurality of pins includes a diameter smaller than the diameter of the drainage hole to allow for condensate to drain through the drainage hole. At least one of the pins includes a distal end and is tapered toward the distal end. The drainage tray may be tilted with respect to the manifold.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: August 29, 2017
    Assignee: MAHLE International GmbH
    Inventor: Wayne O. Forrest
  • Publication number: 20170227264
    Abstract: An evaporator may be provided comprising a manifold, a plurality of micro-channel passageways, a distributor, and a separator. The manifold may comprise a shell defining a cavity. The plurality of micro-channel passageways may extend outwardly from the shell of the manifold, wherein the cavity may be in fluid communication with the plurality of micro-channel passageways. The distributor may comprise an inlet, an elongated body extending into the cavity of the manifold and defining a lumen, and a plurality of openings arranged on an outer surface of the elongated body and spaced along a length of the elongated body, wherein the openings may be configured to allow fluid communication between the lumen and the cavity of the manifold. The separator may be positioned between the plurality of openings within the cavity of the manifold.
    Type: Application
    Filed: February 4, 2016
    Publication date: August 10, 2017
    Inventors: Donald R. Pautler, Douglas C. Wintersteen, Neil A. Walkowski, Longhu Li, Wayne O. Forrest, Shrikant M. Joshi
  • Publication number: 20160370119
    Abstract: A heat exchanger assembly having a first manifold, a second manifold spaced from the first manifold, and a plurality of refrigerant tubes in hydraulic communication with the first manifold and the second manifold. The second manifold includes a first end, a second end opposite from the first end, and a refrigerant inlet adjacent the first end. The plurality of refrigerant tubes includes tube ports. A portion of the tube ports are selectively obstructed such that a refrigerant entering into the second manifold through the refrigerant inlet flows substantially uniformly across the plurality of refrigerant tubes from the second manifold to the first manifold. At least one of the obstructed tube ports includes an inserted sliver of braze amendable material, pinched closed, or formed by inserting a pin of reduced diameter into the selected ports and then squeezing the port from the outside to size it and then removing the pin.
    Type: Application
    Filed: June 17, 2015
    Publication date: December 22, 2016
    Inventors: DONALD R. PAUTLER, DOUGLAS C. WINTERSTEEN, NEIL A. WALKOWSKI, LONGHU LI, WAYNE O. FORREST, SHRIKANT M. JOSHI
  • Publication number: 20160327331
    Abstract: The disclosure presents a heat exchanger assembly for a heat pump system, having a heated condensate drainage system. The heat exchanger assembly includes a manifold with a plurality of pins extending substantially in the direction of gravity. A condensate drainage tray is positioned beneath the manifold. The drainage tray includes a plurality of drainage holes corresponding with the number and position of the pins. The pins extend from the manifold and through the corresponding the drainage holes of the drainage tray. Each of the plurality of pins includes a diameter smaller than the diameter of the drainage hole to allow for condensate to drain through the drainage hole. At least one of the pins includes a distal end and is tapered toward the distal end. The drainage tray may be tilted with respect to the manifold.
    Type: Application
    Filed: May 6, 2015
    Publication date: November 10, 2016
    Inventor: WAYNE O. FORREST
  • Publication number: 20130306280
    Abstract: The disclosure presents a heat exchanger assembly having a first manifold, a second manifold spaced from the first manifold, a plurality of refrigerant tubes extending between and in hydraulic communication with the first and second manifolds, a plurality of corrugated fins inserted between the plurality of refrigerant tubes, and a condensate extractor having a comb baffle portion with fingers inserted between the plurality of refrigerant tubes and a conveyance portion. The comb baffle portion is configured to extract condensate from between the plurality of refrigerant tubes and the conveyance portion is configured to convey condensate away from the heat exchanger assembly.
    Type: Application
    Filed: May 20, 2013
    Publication date: November 21, 2013
    Inventors: HENRY C. GOODMAN, DOUGLAS C. WINTERSTEEN, YANPING XIA, JOSEPH B. CZACH, JOEL T. HAMBRUCH, WAYNE O. FORREST, SHRIKANT M. JOSHI, DAVID E. SAMUELSON, DONALD R. PAUTLER, RUSSELL S. JOHNSON
  • Patent number: 5000259
    Abstract: A motor vehicle passenger compartment heater having a greater number of tubes in the inlet pass than in the outlet pass of the core.
    Type: Grant
    Filed: October 19, 1989
    Date of Patent: March 19, 1991
    Assignee: General Motors Corporation
    Inventor: Wayne O. Forrest