Patents by Inventor Andrew D. Niedert

Andrew D. Niedert 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
  • 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: 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: 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
  • Patent number: 10239187
    Abstract: Methods for post-mold processing a Venturi device for generating vacuum are disclosed that improve the evacuation time thereof. The methods include providing a molded Venturi device having a body defining a Venturi gap between an outlet end of a converging motive passageway and an inlet end of a diverging discharge passageway, where the outlet end defines a motive exit having flash extending radially inward and the inlet end defines a discharge inlet having flash extending radially inward. Then, the method includes positioning the molded Venturi device with an inlet end of the converging motive passageway facing a blasting nozzle or with an outlet end of a diverging discharge passageway facing a blasting nozzle, and propelling blasting media into the motive inlet or the discharge exit of the Venturi device to remove the flash in the motive exit and in the discharge inlet, or vice versa.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: March 26, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Matthew C. Gilmer, Keith Hampton, Andrew D. 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: 10107240
    Abstract: Check valves, Venturi devices and engines that include the check valves are disclosed. The 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 first seat is proximate the first port and has a first annular seal bead, and a second annular seal bead radially inward from the first annular seal bead. The seal disk has a first sealing portion seatable against the first annular seal bead and a second sealing portion seatable against the second annular seal bead (both of a first thickness), an intermediate portion between the first and second sealing portions of a second thickness, and a lip portion defining the outer periphery of the seal disk of a third thickness. The second thickness is greater than the first thickness, and the third thickness is less than the first thickness.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: October 23, 2018
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, Matthew C. Gilmer, Andrew D. Niedert, James H. Miller, Keith Hampton
  • Publication number: 20180283578
    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: Application
    Filed: June 5, 2018
    Publication date: October 4, 2018
    Applicant: DAYCO IP HOLDINGS, LLC
    Inventors: Andrew D. Niedert, Brian M. Graichen
  • Patent number: 10024339
    Abstract: Ejector assemblies and engine systems have a pressure regulator in fluid communication with an ejector. The pressure regulator receives boost pressure and selectively allows the boost pressure to pass through a valve opening therein under selected engine conditions and into the ejector as regulated boost pressure. Both the pressure regulator and the ejector each have a conduit defining a passageway that includes a Venturi gap separating the passageway into a converging section and a first diverging section that both narrow toward the Venturi gap. The pressure regulator has a piston operatively connected to a valve mechanism positioned for movement therewith to control the passage of the boost pressure through the valve opening, and the valve mechanism defines a passage therethrough that includes a gradually narrowing portion that is narrower than the valve opening.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: July 17, 2018
    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
  • Patent number: 10024458
    Abstract: Bypass check valves, suitable for bypassing a Venturi gap, 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 defines a support structure having a middle region of a predetermine height and a downstream side having a height that is shorter than the predetermined height of the middle region. The seal member is seatable against the second seat with a downstream portion thereof a further distance from the first seat than an upstream portion thereof.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: July 17, 2018
    Assignee: Dayco IP Holdings, LLC
    Inventors: Andrew D. Niedert, Brian M. Graichen
  • Patent number: D821302
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: June 26, 2018
    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 Bruder
  • Patent number: D821546
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: June 26, 2018
    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 Bruder
  • 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