Patents by Inventor David A. May

David A. May 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: 9964058
    Abstract: Methods and systems for increasing fuel economy of a vehicle including a SCR catalyst are presented. In one example, an amount of EGR provided to an engine is decreased in response to performance of the SCR being within a predetermined range of performance. The methods and systems may increase vehicle fuel economy while vehicle tailpipe emissions are achieved.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: May 8, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Eric Kurtz, Paul Joseph Tennison, William Charles Ruona, Waheed Alashe, David A. May, Joshua Putman Styron
  • Patent number: 9175661
    Abstract: Methods and systems for operating a glow plug are disclosed. In one example, current supplied to a glow plug can be controlled to promote combustion stability of a cylinder after an engine start. Engine feedgas hydrocarbons may be reduced during conditions where combustion stability may be otherwise reduced to reduce tailpipe emissions.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: November 3, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Eric Kurtz, Paul Joseph Tennison, David A. May
  • Patent number: 8550060
    Abstract: Methods and systems for operating a glow plug are disclosed. In one example, current supplied to a glow plug can be controlled to promote combustion stability of a cylinder after an engine start. Engine feedgas hydrocarbons may be reduced during conditions where combustion stability may be otherwise reduced in order to reduce tailpipe emissions.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: October 8, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Eric Kurtz, Paul Joseph Tennison, David A. May
  • Publication number: 20130261930
    Abstract: Methods and systems for increasing fuel economy of a vehicle including a SCR catalyst are presented. In one example, an amount of EGR provided to an engine is decreased in response to performance of the SCR being within a predetermined range of performance. The methods and systems may increase vehicle fuel economy while vehicle tailpipe emissions are achieved.
    Type: Application
    Filed: April 3, 2012
    Publication date: October 3, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Eric Kurtz, Paul Joseph Tennison, William Charles Ruona, Waheed Alashe, David A. May, Joshua Putman Styron
  • Publication number: 20130087129
    Abstract: Methods and systems for operating a glow plug are disclosed. In one example, current supplied to a glow plug can be controlled to promote combustion stability of a cylinder after an engine start. Engine feedgas hydrocarbons may be reduced during conditions where combustion stability may be otherwise reduced to reduce tailpipe emissions.
    Type: Application
    Filed: October 11, 2011
    Publication date: April 11, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Eric Kurtz, Paul Joseph Tennison, David A. May
  • Publication number: 20130087122
    Abstract: Methods and systems for operating a glow plug are disclosed. In one example, current supplied to a glow plug can be controlled to promote combustion stability of a cylinder after an engine start. Engine feedgas hydrocarbons may be reduced during conditions where combustion stability may be otherwise reduced in order to reduce tailpipe emissions.
    Type: Application
    Filed: September 14, 2012
    Publication date: April 11, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Eric Kurtz, Paul Joseph Tennison, David A. May
  • Patent number: 8281772
    Abstract: Methods and systems for operating a glow plug are disclosed. In one example, current supplied to a glow plug can be controlled to promote combustion stability of a cylinder after an engine start. Engine feedgas hydrocarbons may be reduced during conditions where combustion stability may be otherwise reduced in order to reduce tailpipe emissions.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: October 9, 2012
    Assignee: Ford Global Technologies, LLC
    Inventors: Eric Kurtz, Paul Joseph Tennison, David A. May
  • Publication number: 20120138033
    Abstract: Methods and systems for operating a glow plug are disclosed. In one example, current supplied to a glow plug can be controlled to promote combustion stability of a cylinder after an engine start. Engine feedgas hydrocarbons may be reduced during conditions where combustion stability may be otherwise reduced in order to reduce tailpipe emissions.
    Type: Application
    Filed: October 11, 2011
    Publication date: June 7, 2012
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Eric Kurtz, Paul Joseph Tennison, David A. May
  • Patent number: 8166957
    Abstract: Systems and methods are provided for operating an engine exhaust system. In one example, a system comprises a first valve, and a second valve coupled to the first valve via a shaft. A first position of the shaft situates the first valve closed and the second valve open, a second position situates the second valve closed and the first valve open by a first amount, and a third position situates the second valve closed and the first valve open by a second, larger amount.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: May 1, 2012
    Assignee: Ford Global Technologies, LLC
    Inventors: Jason Aaron Lupescu, Daniel Joseph Styles, James Michael Kerns, Michael James Uhrich, Stephen B. Smith, David A. May
  • Publication number: 20110252794
    Abstract: Systems and methods are provided for operating an engine exhaust system. In one example, a system comprises a first valve, and a second valve coupled to the first valve via a shaft. A first position of the shaft situates the first valve closed and the second valve open, a second position situates the second valve closed and the first valve open by a first amount, and a third position situates the second valve closed and the first valve open by a second, larger amount.
    Type: Application
    Filed: June 28, 2011
    Publication date: October 20, 2011
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Jason Aaron Lupescu, Daniel Joseph Styles, James Michael Kerns, Michael James Uhrich, Stephen B. Smith, David A. May
  • Patent number: 7987837
    Abstract: Systems and methods are provided for operating an engine exhaust system. In one example, a system comprises a first valve, and a second valve coupled to the first valve via a shaft. A first position of the shaft situates the first valve closed and the second valve open, a second position situates the second valve closed and the first valve open by a first amount, and a third position situates the second valve closed and the first valve open by a second, larger amount.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: August 2, 2011
    Assignee: Ford Global Technologies, LLC
    Inventors: Jason Aaron Lupescu, Daniel Joseph Styles, James Michael Kerns, Michael James Uhrich, Stephen B. Smith, David A. May
  • Publication number: 20110132337
    Abstract: Systems and methods are provided for operating an engine exhaust system. In one example, a system comprises a first valve, and a second valve coupled to the first valve via a shaft. A first position of the shaft situates the first valve closed and the second valve open, a second position situates the second valve closed and the first valve open by a first amount, and a third position situates the second valve closed and the first valve open by a second, larger amount.
    Type: Application
    Filed: February 16, 2010
    Publication date: June 9, 2011
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Jason Aaron Lupescu, Daniel Joseph Styles, James Michael Kerns, Michael James Uhrich, Stephen B. Smith, David A. May
  • Patent number: 4921032
    Abstract: A Roman shade having spacers for spacing the folds of the shade when in a raised position to provide the raised Roman shade with a cascading effect.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: May 1, 1990
    Assignee: Appropriate Technology Corporation
    Inventor: David A. May
  • Patent number: 4651796
    Abstract: An insulating window shade assembly includes a shade frame having a pair of vertical side channels open in a direction facing one another and designed to be mounted on the inside of the window to be insulated. A flexible insulating shade having inner and outer spaced apart parallel panels extends downwardly from the top of the channels, and the margins of the panels extend into the channels. Edge seals are provided in each channel made up of a pair of flexible polyester film strips with the adjacent sides of the strips being spring biased towards one another but being separable so that the margins of the shade panels may lie between them. The flexible character of the strips forms an effective insulating seal about the margins. A rerailer assembly is provided at the tops of the edge seals to guide the margins of the each panel between the strips of the edge seal should they become dislodged.
    Type: Grant
    Filed: October 22, 1984
    Date of Patent: March 24, 1987
    Assignee: Appropriate Technology Corporation
    Inventors: Bruce C. Gardner, Daniel L. Ingold, David A. May
  • Patent number: 4516618
    Abstract: An insulating window shade assembly includes a shade frame having a pair of vertical side channels open in a direction facing one another and designed to be mounted on the inside of the window to be insulated. A flexible insulating shade having inner and outer spaced apart parallel panels extends downwardly from the top of the channels, and the margins of the panels extend into the channels. Edge seals are provided in each channel made up of a pair of flexible polyester film strips with the adjacent sides of the strips being spring biased towards one another but being separable so that the margins of the shade panels may lie between them. The flexible character of the strips forms an effective insulating seal about the margins. A rerailer assembly is provided at the tops of the edge seals to guide the margins of the each panel between the strips of the edge seal should they become dislodged.
    Type: Grant
    Filed: August 6, 1982
    Date of Patent: May 14, 1985
    Assignee: Appropriate Technology Corporation
    Inventors: Bruce C. Gardner, Daniel L. Ingold, David A. May
  • Patent number: 4418739
    Abstract: An insulating shade including a channel-type frame which is designed to be permanently installed on the prime window frame. The shade assembly which is mounted in the frame includes a pair of rollers which are geared together so as to rotate simultaneously and simultaneously either take up or play out the shade material. The rollers with the shade are supported on bearing plates which in turn are hung on spring brackets that snap into the channels permanently secured to the window frame. A cord operated pulley carries a gear which in turn drives the two rollers so as to raise and lower the shade. Weather stripping is secured inside the channels of the frame, which cooperate both with the sides of the shade itself and the weighted roller at the bottom of the shade to prevent cold air from flowing about the shade.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: December 6, 1983
    Assignee: Appropriate Technology Corporation
    Inventors: James Woolnough, Bruce Gardner, David A. May