Patents by Inventor Brian M. Graichen

Brian M. Graichen 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: 10480537
    Abstract: An evacuator for supplying vacuum to a device in a boosted engine air system is disclosed. The evacuator defines a body comprising a converging motive section, a diverging discharge section, at least one suction port, and a Venturi gap located between an outlet end of the converging motive section and an inlet end of the diverging discharge section. A lineal distance is measured between the outlet end and the inlet end. The lineal distance is decreased in length if higher suction vacuum at a specific set of operating conditions is required and the lineal distances is increased in length if higher suction flow rate at the specific set of operating conditions is required.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: November 19, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Matthew C. Gilmer, Keith Hampton, Andrew D. Niedert, Denis Vashuk
  • Patent number: 10473235
    Abstract: Check valves are disclosed and include a housing defining an internal cavity having a first seat and a second seat, and a seal member within the internal cavity translatable between a closed position against the first seat and an open position against the second seat. The second seat has a middle axis transverse to a plane of a longitudinal cross-section of the housing and has a shortest finger positioned to either the left or to the right of the middle axis. The seal member is seatable against the second seat at an angle or in a deflected position against the plurality of fingers, thereby defining a longer distance of travel to reach the closed position for a portion of the check valve disc that is associated with the position of the shortest finger relative to other portions of the check valve disc.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: November 12, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: Andrew D. Niedert, Brian M. Graichen
  • Patent number: 10443627
    Abstract: Venturi devices that create vacuum have a housing defining a motive passageway converging toward a suction chamber, a discharge passageway diverging away from the suction chamber, and a suction passageway in fluid communication with the suction chamber. Within the suction chamber, a motive exit of the motive passageway is generally aligned with and spaced apart from a discharge entrance of the discharge passageway to define a Venturi gap, and the suction passageway enters the suction chamber at a position that generates about a 180 degree change in the direction of suction flow from the suction passageway to the discharge passageway. The motive passageway may terminate in a spout protruding into the suction chamber disposed spaced apart from all one or more sidewalls of the suction chamber and may subdivide downstream of the single entrance into two or more subpassageways each leading to one of two or more motive exits.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: October 15, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Keith Hampton
  • Patent number: 10422351
    Abstract: Devices for producing vacuum using the Venturi effect are disclosed that have a motive passageway converging toward a suction chamber, a discharge passageway diverging away from the suction chamber, and a suction passageway, all of which are in fluid communication with the suction chamber. The motive passageway has a single entrance, and subdivides downstream thereof into a plurality of subpassageways, one each leading to one of the plurality of motive exits, which are spaced apart from a discharge entrance of the discharge passageway to define a Venturi gap. The fletch having a plurality of ribs extending between an exterior surface of the generally conically-shaped main body thereof and an interior surface of the motive passageway is disposed in the motive passageway. The ribs divide the motive passageway into the plurality of sub-passageways, each converging fluid flow over the exterior surface thereof toward one of the plurality of motive exits.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: September 24, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Keith Hampton
  • Publication number: 20190256070
    Abstract: A Venturi device for producing vacuum from fluids in an engine system has a body defining a Venturi gap separating apart an outlet end of a converging motive section and an inlet end of a diverging discharge section by a lineal distance, and a suction port in fluid communication with the Venturi gap. The converging motive section and the diverging discharge section both gradually, continuously taper toward the Venturi gap, the converging motive section defines a circular-shaped motive inlet and an elliptical- or polygonal-shaped motive outlet, the diverging discharge section defines an elliptical- or polygonal-shaped discharge inlet, and an inner passageway of the converging motive section transitions as a hyperbolic function from the motive inlet to the elliptical- or polygonal-shaped motive outlet.
    Type: Application
    Filed: May 6, 2019
    Publication date: August 22, 2019
    Applicant: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert
  • Publication number: 20190257441
    Abstract: Valves having a sprung gate of various constructions are disclosed. In one embodiment, the sprung gate includes a first endless elastic band having an inner perimeter defining an open space sandwiched between a first gate member and a second gate member that each define an opening therethrough in an open position portion thereof. The first endless elastic band is sandwiched therebetween with its open space oriented for alignment with the opening in both of the first and second gate members, which are aligned with one another to form a passage through the sprung gate. In one aspect, the first endless elastic band in positioned inward a distance from the outer sides of the first and second gate members and spaces the first gate member a distance apart from the second gate member thereby defining a channel having a bottom defined by the first endless elastic band.
    Type: Application
    Filed: May 6, 2019
    Publication date: August 22, 2019
    Applicant: Dayco IP Holdings, LLC
    Inventors: Brian M. Graichen, David E. Fletcher, Matthew C. Gilmer
  • Publication number: 20190234430
    Abstract: An evacuator for supplying vacuum to a device in a boosted engine air system is disclosed. The evacuator defines a body comprising a converging motive section, a diverging discharge section, at least one suction port, and a Venturi gap located between an outlet end of the converging motive section and an inlet end of the diverging discharge section. A lineal distance is measured between the outlet end and the inlet end. The lineal distance is decreased in length if higher suction vacuum at a specific set of operating conditions is required and the lineal distances is increased in length if higher suction flow rate at the specific set of operating conditions is required.
    Type: Application
    Filed: April 3, 2019
    Publication date: August 1, 2019
    Applicant: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Matthew C. Gilmer, Keith Hampton, Andrew D. Niedert, Denis Vashuk
  • Patent number: 10323767
    Abstract: Valves having a sprung gate of various constructions are disclosed. In one embodiment, the sprung gate includes a first endless elastic band having an inner perimeter defining an open space sandwiched between a first gate member and a second gate member that each define an opening therethrough in an open position portion thereof. The first endless elastic band is sandwiched therebetween with its open space oriented for alignment with the opening in both of the first and second gate members, which are aligned with one another to form a passage through the sprung gate. In one aspect, the first endless elastic band in positioned inward a distance from the outer sides of the first and second gate members and spaces the first gate member a distance apart from the second gate member thereby defining a channel having a bottom defined by the first endless elastic band.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: June 18, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: Brian M. Graichen, David E. Fletcher, Matt Gilmer
  • Patent number: 10316864
    Abstract: Devices for producing vacuum using the Venturi effect have a housing defining a suction chamber, a motive passageway converging toward the suction chamber, a discharge passageway diverging away from the suction chamber, and a suction passageway in fluid communication with the suction chamber. A solenoid valve is positioned in the suction passageway and has an elongate sealing member received inside a coil, a first seal seat at a first end of the coil, and a second seal seat at the second end of the coil. The elongate sealing member is translatable within the coil between the first seal seat and the second seal seat, which define an open position and a closed position. Within the suction chamber, a motive exit of the motive passageway is generally aligned with and spaced apart from a discharge entrance of the discharge passageway to define a Venturi gap.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: June 11, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Keith Hampton
  • Patent number: 10273978
    Abstract: An evacuator for supplying vacuum to a device in a boosted engine air system is disclosed. The evacuator defines a body comprising a converging motive section, a diverging discharge section, at least one suction port, and a Venturi gap located between an outlet end of the converging motive section and an inlet end of the diverging discharge section. A lineal distance is measured between the outlet end and the inlet end. The lineal distance is decreased in length if higher suction vacuum at a specific set of operating conditions is required and the lineal distances is increased in length if higher suction flow rate at the specific set of operating conditions is required.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: April 30, 2019
    Assignee: Dayco IP, Holdings LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Matthew C. Gilmer, Keith Hampton, Andrew D. Niedert, Denis Vashuk
  • Publication number: 20190085835
    Abstract: Start-stop engine systems for a turbocharged engine have a bypass with fluid flow from upstream of the compressor or downstream of the compressor to a position between the throttle and the engine, or from between the compressor and throttle to a position upstream of the compressor with a Venturi device in the bypass. A device requiring vacuum is in fluid communication with a suction port of the Venturi device. An electronic vacuum pump is added that is in fluid communication with the device requiring vacuum or with the Venturi device. The electronic vacuum pump is operated during a stop condition of the start-stop engine to replace the vacuum generated by the Venturi device or to provide a pressure drop across the Venturi device so the Venturi device continues to generate vacuum for the device requiring vacuum.
    Type: Application
    Filed: September 21, 2018
    Publication date: March 21, 2019
    Applicant: Dayco IP Holdings, LLC
    Inventors: Keith Hampton, David E. Fletcher, Brian M. Graichen, James H Miller
  • Patent number: 10221867
    Abstract: An aspirator for creating vacuum is disclosed that includes a housing defining a fluid passageway with a first tapering portion and a second tapering portion. Each tapering portion has a larger internal opening and a smaller internal opening, the smaller openings facing one another. The aspirator includes a gate positioned between and in fluid communication with the first and second tapering portions, the gate having a first Venturi tube with a Venturi opening creating vacuum when fluid flows in a direction and a second Venturi tube with a Venturi opening that creates vacuum when fluid flows in the opposite direction. The Venturi openings are in fluid communication with a suction port, and the first and second Venturi tubes may provide different mass flow rates through the aspirator. An engine system having an aspirator with a gate having a first bore and a second bore and an actuator is also disclosed.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: March 5, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: Keith Hampton, David Fletcher, Brian M. Graichen, Rex Bravo, James H. Miller, Matt Gilmer, Andrew Niedert
  • Patent number: 10190549
    Abstract: Check valves, Venturi devices and engines having such check valves, define an internal cavity having a first port and a second port, a first seat and a second seat, and a translatable seal disk. The check valves have an outlet conduit extending from the second port and/or the first seat has a first annular seal bead and a second annular seal bead disposed radially inward of the first annular seal bead with a plurality of ribs extending between the first annular seal bead and the second annular seal bead within the fluid flow path of the first port. The outlet conduit defines an outlet passageway having a restrictor profile that is circular in a transverse profile, and the ribs decrease the flow area of the fluid flow path of the first port by about 10% to about 60%.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: January 29, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, Matthew C. Gilmer, Andrew D. Niedert, James H. Miller, Keith Hampton
  • Patent number: 10190455
    Abstract: A device for producing vacuum using the Venturi effect, systems utilizing the device, and methods of making the device are disclosed. The device has a housing defining a Venturi gap, a motive passageway converging toward the Venturi gap and in fluid communication therewith, a discharge passageway diverging away from the Venturi gap and in fluid communication therewith, and a suction passageway in fluid communication with the Venturi gap. The suction passageway has an interior surface with a surface topography that renders the interior surface hydrophobic and has an oleophobic coating applied to the interior surface while maintaining the surface topography.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: January 29, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: Keith Hampton, David E. Fletcher, Brian M. Graichen, James H. Miller, Andrew D. Niedert
  • Patent number: D840920
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: February 19, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Lavis
  • Patent number: D840921
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: February 19, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Lavis
  • Patent number: D840922
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: February 19, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Lavis
  • Patent number: D840923
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: February 19, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Lavis
  • Patent number: D843315
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: March 19, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Lavis
  • Patent number: D844550
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: April 2, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Lavis