Patents by Inventor Alan Welch

Alan Welch 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: 8413638
    Abstract: A method is provided for operating a directly actuated valve that comprises a strain-type actuator to actuate a valve member to travel between a closed position and an open position, the method comprising transmitting displacements from the strain-type actuator to the valve member, maintaining a compressive stress on the actuator that is greater than a predetermined minimum stress by applying a pre-load compressive stress and limiting to less than predetermined limits at least one of: (a) acceleration and deceleration of the valve member when moving between open positions and the closed position; and (b) velocity of said valve member immediately before contacting the valve seat.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: April 9, 2013
    Assignee: Westport Power Inc.
    Inventors: David Mumford, Alan Welch, Alain Touchette, Mike Hebbes, Richard Wing
  • Publication number: 20100219360
    Abstract: A method is provided for operating a directly actuated valve that comprises a strain-type actuator to actuate a valve member to travel between a closed position and an open position, the method comprising transmitting displacements from the strain-type actuator to the valve member, maintaining a compressive stress on the actuator that is greater than a predetermined minimum stress by applying a pre-load compressive stress and limiting to less than predetermined limits at least one of: (a) acceleration and deceleration of the valve member when moving between open positions and the closed position; and (b) velocity of said valve member immediately before contacting the valve seat.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 2, 2010
    Inventors: David Mumford, Alan Welch, Alain Touchette, Mike Hebbes, Richard Wing
  • Publication number: 20080104977
    Abstract: An insulated icemaking compartment is provided in the fresh food compartment of a bottom mount refrigerator. The icemaking compartment may be integrally formed with the liner of the fresh food compartment, or alternatively, may be modular for installation anywhere in the fresh food compartment. A removable bin assembly with a front cover normally seals the icemaking compartment to maintain the temperature in the compartment. A cold air duct formed in the rear wall of the refrigerator supplies cold air from the freezer compartment to the icemaking compartment. A return air duct directs a portion of the air from the icemaking compartment back to the freezer compartment. An air vent in the icemaking compartment directs another portion of air into the fresh food compartment. A control system provides for controlling refrigerator functions in a manner that promotes energy efficiency.
    Type: Application
    Filed: October 31, 2007
    Publication date: May 8, 2008
    Inventors: TIM COULTER, THOMAS GOSE, STEVEN HERNDON, JAMES JENKINS, BILL KOONS, BRENT KRAMER, SCOTT LEIMKUEHLER, DEAN MARTIN, ALVIN MILLER, KEVIN NOEL, RON PAULSEN, MAURO OLIVEIRA, LESTER OTT, CHAD ROTTER, DAVID STAUFFER, KYLE VAN METER, ALAN WELCH, ROBERT WETEKAMP
  • Publication number: 20060260346
    Abstract: An insulated ice making compartment is provided in the fresh food compartment of a bottom mount refrigerator. The ice making compartment may be integrally formed with the liner of the fresh food compartment, or alternatively, may be modular for installation anywhere in the fresh food compartment. A removable bin assembly with a front cover normally seals the ice making compartment to maintain the temperature in the compartment. A cold air duct formed in the rear wall of the refrigerator supplies cold air from the freezer compartment to the ice making compartment. A return air duct directs a portion of the air from the ice making compartment back to the freezer compartment. An air vent in the ice making compartment directs another portion of air into the fresh food compartment. A control system provides for controlling refrigerator functions in a manner that promotes energy efficiency. The refrigerator has an improved water fill tube for the ice maker.
    Type: Application
    Filed: June 29, 2006
    Publication date: November 23, 2006
    Applicant: MAYTAG CORPORATION
    Inventors: TIM COULTER, THOMAS GOSE, STEVEN HERNDON, JAMES JENKINS, BILL KOONS, BRENT KRAMER, SCOTT LEIMKUEHLER, DEAN MARTIN, ALVIN MILLER, KEVIN NOEL, MAURO OLIVEIRA, RON PAULSEN, LESTER OTT, CHAD ROTTER, DAVID STAUFFER, KYLE VAN METER, ALAN WELCH, ROBERT WETEKAMP
  • Publication number: 20060260351
    Abstract: An insulated ice making compartment is provided in the fresh food compartment of a bottom mount refrigerator. The ice making compartment may be integrally formed with the liner of the fresh food compartment, or alternatively, may be modular for installation anywhere in the fresh food compartment. A removable bin assembly with a front cover normally seals the ice making compartment to maintain the temperature in the compartment. A cold air duct formed in the rear wall of the refrigerator supplies cold air from the freezer compartment to the ice making compartment. A return air duct directs a portion of the air from the ice making compartment back to the freezer compartment. An air vent in the ice making compartment directs another portion of air into the fresh food compartment. A control system provides for controlling refrigerator functions in a manner that promotes energy efficiency. The icemaker has improved air impingement to enhance ice making.
    Type: Application
    Filed: June 29, 2006
    Publication date: November 23, 2006
    Applicant: MAYTAG CORPORATION
    Inventors: TIM COULTER, THOMAS GOSE, STEVEN HERNDON, JAMES JENKINS, BILL KOONS, BRENT KRAMER, Scott Leimkuehler, DEAN MARTIN, ALVIN MILLER, KEVIN NOEL, RON PAULSEN, MAURO OLIVEIRA, LESTER OTT, CHAD ROTTER, DAVID STAUFFER, KYLE VAN METER, ALAN WELCH, ROBERT WETEKAMP
  • Publication number: 20060260349
    Abstract: An insulated ice making compartment is provided in the fresh food compartment of a bottom mount refrigerator. The ice making compartment may be integrally formed with the liner of the fresh food compartment, or alternatively, may be modular for installation anywhere in the fresh food compartment. A removable bin assembly with a front cover normally seals the ice making compartment to maintain the temperature in the compartment. A cold air duct formed in the rear wall of the refrigerator supplies cold air from the freezer compartment to the ice making compartment. A return air duct directs a portion of the air from the ice making compartment back to the freezer compartment. An air vent in the ice making compartment directs another portion of air into the fresh food compartment. A control system provides for controlling refrigerator functions in a manner that promotes energy efficiency. The refrigerator has a modular water tank assembly housed in a cavity in the back wall of the cabinet.
    Type: Application
    Filed: June 29, 2006
    Publication date: November 23, 2006
    Applicant: MAYTAG CORPORATION
    Inventors: TIM COULTER, THOMAS GOSE, STEVEN HERNDON, JAMES JENKINS, BILL KOONS, BRENT KRAMER, SCOTT LEIMKUEHLER, DEAN MARTIN, ALVIN MILLER, KEVIN NOEL, RON PAULSEN, LESTER OTT, CHAD ROTTER, DAVID STAUFFER, KYLE VAN METER, ALAN WELCH, ROBERT WETEKAMP, MAURO OLIVEIRA
  • Publication number: 20060260345
    Abstract: An insulated icemaking compartment is provided in the fresh food compartment of a bottom mount refrigerator. The icemaking compartment may be integrally formed with the liner of the fresh food compartment, or alternatively, may be modular for installation anywhere in the fresh food compartment. A removable bin assembly with a front cover normally seals the icemaking compartment to maintain the temperature in the compartment. A cold air duct formed in the rear wall of the refrigerator supplies cold air from the freezer compartment to the icemaking compartment. A return air duct directs a portion of the air from the icemaking compartment back to the freezer compartment. An air vent in the icemaking compartment directs another portion of air into the fresh food compartment. A control system provides for controlling refrigerator functions in a manner that promotes energy efficiency. The temperature of the ice compartment is between the temperatures of the fresh food and freezer compartments.
    Type: Application
    Filed: June 2, 2006
    Publication date: November 23, 2006
    Applicant: MAYTAG CORPORATION
    Inventors: Tim Coulter, Thomas Gose, Steven Herndon, James Jenkins, Bill Koons, Brent Kramer, Scott Leimkuehler, Dean Martin, Alvin Miller, Kevin Noel, Mauro Oliveira, Lester Ott, Ron Paulsen, Chad Rotter, David Stauffer, Kyle Van Meter, Alan Welch, Robert Wetekamp
  • Publication number: 20060260347
    Abstract: An insulated icemaking compartment is provided in the fresh food compartment of a bottom mount refrigerator. The icemaking compartment may be integrally formed with the liner of the fresh food compartment, or alternatively, may be modular for installation anywhere in the fresh food compartment. A removable bin assembly with a front cover normally seals the icemaking compartment to maintain the temperature in the compartment. A cold air duct formed in the rear wall of the refrigerator supplies cold air from the freezer compartment to the icemaking compartment. A return air duct directs a portion of the air from the icemaking compartment back to the freezer compartment. An air vent in the icemaking compartment directs another portion of air into the fresh food compartment. A control system provides for controlling refrigerator functions in a manner that promotes energy efficiency.
    Type: Application
    Filed: May 27, 2005
    Publication date: November 23, 2006
    Applicant: Maytag Corporation
    Inventors: Tim Coulter, Thomas Gose, Steven Herndon, James Jenkins, Bill Koons, Brent Kramer, Scott Leimkuehler, Dean Martin, Alvin Miller, Kevin Noel, Mauro Oliveira, Lester Ott, Ron Paulsen, Chad Rotter, David Stauffer, Kyle Van Meter, Alan Welch, Robert Wetekamp
  • Publication number: 20050206024
    Abstract: Apparatus and methods for producing a decorated plastic product are disclosed. A strip of plastics material is extruded from a strip extruder and moved along a production line in sequence from the strip extruder past a decoration media dispenser to a thermoformer. At the decoration media dispenser, decoration media is dispensed from the decoration media dispenser onto a portion of the strip. The thermoformer is used to heat and form the decorated strip portion into the plastic product.
    Type: Application
    Filed: March 19, 2004
    Publication date: September 22, 2005
    Inventors: David Jochem, Jeffrey Mann, Milan Maravich, Alan Welch