Patents by Inventor Matt Gilmer

Matt Gilmer 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: 10336305
    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: Grant
    Filed: October 24, 2017
    Date of Patent: July 2, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: Dave Fletcher, Brian Graichen, Keith Hampton, Matt Gilmer, Andrew Niedert
  • 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: 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
  • Publication number: 20180094744
    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: November 22, 2017
    Publication date: April 5, 2018
    Inventors: Brian M. Graichen, David E. Fletcher, Matt Gilmer
  • Publication number: 20180043875
    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: October 24, 2017
    Publication date: February 15, 2018
    Applicant: DAYCO IP Holdings, LLC
    Inventors: Dave Fletcher, Brian Graichen, Keith Hampton, Matt Gilmer, Andrew Niedert
  • Patent number: 9845773
    Abstract: An engine system having a flowpath between a junction upstream of a turbocharger and an intake manifold that includes an ejector and an aspirator connected in parallel relative to one another within the flowpath is disclosed. The motive flow through the ejector is in the opposite direction relative to the direction of the motive flow through the aspirator, and both the ejector and the aspirator have a suction port fluidly coupled to a device requiring vacuum. The engine system also includes a first check valve disposed in control of the motive flow through the ejector and a second check valve disposed in control of the motive flow through the aspirator and may also include a control valve in fluid communication within the flowpath upstream or downstream of the ejector and the aspirator that controls the flow into and/or out of both thereof.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: December 19, 2017
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, Matt Gilmer, Andrew Niedert, Steve Long
  • Patent number: 9845899
    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: May 15, 2014
    Date of Patent: December 19, 2017
    Assignee: Dayco IP Holdings, LLC
    Inventors: Brian M. Graichen, David E. Fletcher, Matt Gilmer
  • Patent number: 9841110
    Abstract: A sprung gate for a valve having an endless elastic band sandwiched between first and second gate members that each define an opening therethrough in an open position portion thereof, which collectively form a passage through the sprung gate. The first gate member includes a fastener connected to a fastener receiving member of the second gate member thereby securing the first and second gate members together as a unit. This sprung gate unit is operatively connected to an actuator for linear translation within a pocket of a conduit to control fluid flow through the conduit. This assembled device may be manufactured using spin welding to sealingly mate the conduit to a housing enclosing the actuator.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: December 12, 2017
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, Matt Gilmer, James H. Miller
  • Patent number: 9827963
    Abstract: Aspirators are disclosed herein that include a body defining a Venturi gap between an outlet end of a converging motive section and an inlet end of a diverging discharge section and have a suction port in fluid communication with the Venturi gap. The converging motive section defines a circular-shaped motive inlet and defines an elliptical- or polygonal-shaped motive outlet, and the diverging discharge section defines an elliptical- or polygonal-shaped discharge inlet. In one embodiment, the converging motive section defines an inner passageway that transitions as a hyperbolic function from the circular-shaped motive inlet to the elliptical- or polygonal-shaped motive outlet and the elliptical- or polygonal-shaped motive outlet has an area that is less than the area of the circular-shaped motive inlet.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: November 28, 2017
    Assignee: Dayco IP Holdings, LLC
    Inventors: Dave Fletcher, Brian Graichen, Keith Hampton, Matt Gilmer, Andrew Niedert
  • Patent number: 9822785
    Abstract: Recirculation systems for engine intake air are disclosed having a turbocharger compressor with an inlet and an outlet, a recirculation pathway connecting fluid flow from the outlet of the turbocharger compressor to fluid flow into the inlet of the turbocharger compressor, and a recirculation valve assembly controlling fluid flow through the recirculation pathway. The recirculation valve assembly includes an actuator operating a valve coupled to an aspirator assembly that produces vacuum when the fluid flows through the recirculation pathway from the inlet to the outlet and when fluid flows through the recirculation pathway from the outlet to the inlet. Fluid flows through the recirculation pathway from the outlet to the inlet when the turbocharger generates boost. The vacuum generated by the aspirator assembly is in fluid communication with the actuator to move the valve between two or more positions.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: November 21, 2017
    Assignee: Dayco IP Holdings, LLC
    Inventors: David Fletcher, Brian M. Graichen, James H. Miller, Keith Hampton, Matt Gilmer, Rex Bravo, Andrew Niedert
  • Patent number: 9671034
    Abstract: Piston actuators and methods of its operation are described. The piston actuators include a housing defining a chamber having a piston therein and a spring seated against the piston to bias it into a starting position. The piston includes a ferromagnetic material, a magnet or both and a secondary magnet or ferromagnetic material, forming a first magnetic/ferromagnetic pair with the piston, is positioned to maintain the piston in a secondary position. A tertiary magnet or ferromagnetic material, forming a second magnetic/ferromagnetic pair with the piston, may assist the spring in maintaining the piston in the starting position. During operation, introduction into or removal from the chamber of an amount of fluid sufficient to overcome the force of the spring (and the tertiary magnet or ferromagnetic material) enables the attraction between the members of the first magnetic/ferromagnetic pair to move the piston to the secondary position as a snap movement.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: June 6, 2017
    Assignee: DAYCO IP HOLDINGS, LLC
    Inventors: Brian M. Graichen, Dave Fletcher, Matt Gilmer, James H. Miller, Keith Hampton
  • Patent number: 9581258
    Abstract: Check valves are disclosed, including check valve included in an aspirator, that includes a housing defining an internal cavity having a first port and a second port both in fluid communication therewith, and a sealing member within the cavity. The sealing member is translatable between a closed position against a first seat within the internal cavity of the housing and an open position against a second seat within the internal cavity of the housing. The sealing member has a sealing material positioned for sealing engagement with the first seat when the sealing member is in the closed position and a reinforcing member positioned for engagement with the second seat when the sealing member is in the open position.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: February 28, 2017
    Assignee: DAYCO IP HOLDINGS, LLC
    Inventors: David Fletcher, James H. Miller, Rex Bravo, Andrew Niedert, Matt Gilmer
  • Patent number: 9534704
    Abstract: Check valve units having one or more sound attenuating members are disclosed. A check valve unit includes a housing defining an inlet port, an outlet port, and a chamber in fluid communication therewith thereby defining a flow path from the inlet port through the chamber to the outlet port. The chamber includes first and second valve seats and has a sealing member disposed therein that is moveable from a position seated on the first valve seat to a position seated on the second valve seat. A sound attenuating member is disposed in the flow path downstream of the chamber, within the chamber, or both. In another embodiment, the check valve unit includes a Venturi portion in fluid communication with the chamber. The Venturi portion has a fluid junction with the flow path downstream of the chamber or forms the discharge section of the Venturi portion thereby defining the outlet port.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: January 3, 2017
    Assignee: DAYCO IP HOLDINGS, LLC
    Inventors: Keith Hampton, David E. Fletcher, Brian M. Graichen, Rex Bravo, Matt Gilmer, Andrew Niedert
  • Patent number: 9303548
    Abstract: A diesel engine fluid reservoir system having a reservoir of diesel exhaust fluid in thermal communication with a heating element, a first conduit for the flow of engine coolant fluid to the heating element, a temperature sensor disposed to sense ambient temperature and/or a temperature of the diesel exhaust fluid, a controller communicatively coupled to the temperature sensor and communicatively coupled to a sprung gate valve included in the first conduit. The gate valve has a no-flow position and a flow position for control of the flow of engine coolant and includes an endless elastic band sandwiched between a first gate member and a second gate member each defining an opening therethrough alignable with the first conduit in the flow position. In response to a sensed temperature at which the diesel exhaust fluid is frozen, the controller signals the gate valve to be in the flow position.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: April 5, 2016
    Assignees: Dayco IP Holdings, LLC, TLX Technologies, LLC
    Inventors: Dave Fletcher, Brian M. Graichen, Matt Gilmer, James H. Miller, Jeff Rogala
  • Patent number: 9145824
    Abstract: An engine system having a compressor coupled to an engine and supplying air to an intake manifold, a throttle controlling the supply of air from the compressor to the intake manifold, a vacuum reservoir, an aspirator having its motive section in fluid communication with the air intake system upstream of the compressor and its discharge section in fluid communication downstream of the compressor and a suction port in fluid communication with the vacuum reservoir, a compressor recirculation valve having a pneumatic control chamber in fluid communication with downstream air from the compressor and in fluid communication with the vacuum reservoir, a gate valve controlling the fluid communication of the pneumatic control chamber of the compressor recirculation valve with the downstream air and the vacuum reservoir, and a bleed line having a bleed valve in fluid communication with the vacuum reservoir and the pneumatic control chamber of the compressor recirculation valve.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: September 29, 2015
    Assignee: DAYCO IP HOLDINGS, LLC
    Inventors: Dave Fletcher, Brian M. Graichen, Keith Hampton, Matt Gilmer, James H. Miller, Steve Long
  • Patent number: 9133852
    Abstract: An engine system having a compressor coupled to an engine and supplying air to an intake manifold, a throttle controlling the supply of air from the compressor to the intake manifold, a compressor recirculation valve (CRV) having a pneumatic control chamber, and a throttle aspirator having its motive section in fluid communication with an inlet of the throttle and its discharge section in fluid communication with an outlet of the throttle and its suction port in fluid communication with the pneumatic control chamber of the CRV. Such an engine system automatically minimizes surge during boost without a control system activating the CRV. Here, the CRV operates purely on the changes in pressure within the system forming a loop that resets itself. In another embodiment, a gate valve and a vacuum canister may be included rather than having the throttle aspirator directly connected to the CRV's pneumatic control chamber.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: September 15, 2015
    Assignee: DAYCO IP HOLDINGS, LLC
    Inventors: Dave Fletcher, Brian M. Graichen, Keith Hampton, Matt Gilmer, James H. Miller, Steve Long
  • Publication number: 20150204452
    Abstract: Check valves are disclosed, including check valve included in an aspirator, that includes a housing defining an internal cavity having a first port and a second port both in fluid communication therewith, and a sealing member within the cavity. The sealing member is translatable between a closed position against a first seat within the internal cavity of the housing and an open position against a second seat within the internal cavity of the housing. The sealing member has a sealing material positioned for sealing engagement with the first seat when the sealing member is in the closed position and a reinforcing member positioned for engagement with the second seat when the sealing member is in the open position.
    Type: Application
    Filed: January 20, 2015
    Publication date: July 23, 2015
    Applicant: DAYCO IP HOLDINGS, LLC
    Inventors: David Fletcher, James H. Miller, Rex Bravo, Andrew Niedert, Matt Gilmer
  • Publication number: 20150159677
    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: Application
    Filed: December 9, 2014
    Publication date: June 11, 2015
    Applicant: DAYCO IP HOLDINGS, LLC
    Inventors: Keith Hampton, David Fletcher, Brian M. Graichen, Rex Bravo, James H. Miller, Matt Gilmer, Andrew Niedert
  • Publication number: 20150159665
    Abstract: Recirculation systems for engine intake air are disclosed having a turbocharger compressor with an inlet and an outlet, a recirculation pathway connecting fluid flow from the outlet of the turbocharger compressor to fluid flow into the inlet of the turbocharger compressor, and a recirculation valve assembly controlling fluid flow through the recirculation pathway. The recirculation valve assembly includes an actuator operating a valve coupled to an aspirator assembly that produces vacuum when the fluid flows through the recirculation pathway from the inlet to the outlet and when fluid flows through the recirculation pathway from the outlet to the inlet. Fluid flows through the recirculation pathway from the outlet to the inlet when the turbocharger generates boost. The vacuum generated by the aspirator assembly is in fluid communication with the actuator to move the valve between two or more positions.
    Type: Application
    Filed: December 10, 2014
    Publication date: June 11, 2015
    Applicant: DAYCO IP HOLDINGS, LLC
    Inventors: David Fletcher, Brian M. Graichen, James H. Miller, Keith Hampton, Matt Gilmer, Rex Bravo, Andrew Niedert
  • Publication number: 20150128573
    Abstract: A diesel engine fluid reservoir system having a reservoir of diesel exhaust fluid in thermal communication with a heating element, a first conduit for the flow of engine coolant fluid to the heating element, a temperature sensor disposed to sense ambient temperature and/or a temperature of the diesel exhaust fluid, a controller communicatively coupled to the temperature sensor and communicatively coupled to a sprung gate valve included in the first conduit. The gate valve has a no-flow position and a flow position for control of the flow of engine coolant and includes an endless elastic band sandwiched between a first gate member and a second gate member each defining an opening therethrough alignable with the first conduit in the flow position. In response to a sensed temperature at which the diesel exhaust fluid is frozen, the controller signals the gate valve to be in the flow position.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Applicants: TLX TECHNOLOGIES, LLC, DAYCO IP HOLDINGS, LLC
    Inventors: Dave Fletcher, Brian M. Graichen, Matt Gilmer, James H. Miller, Jeff Rogala