Patents by Inventor Andrew J. STAUDT

Andrew J. STAUDT 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: 12181328
    Abstract: A system for removing dead volume in a sensor assembly of a mass flow controller is presented. The system comprises a valve assembly communicable coupled to the sensor assembly. The valve assembly is in fluid communication with fluid in a primary flow path and the sensor assembly is in fluid communication with fluid in the primary flow path. The sensor assembly comprises a pressure transducer having a first reservoir and another pressure transducer having a second reservoir. The first reservoir has a port in fluid communication with fluid in a sampled flow path. The second reservoir is coupled to a second pressure transducer and is fluidly coupled to the first reservoir through a flow through path. The second reservoir also includes another port for communicating the flow of fluid from the flow through path to another flow path. A flow rate restrictor is disposed in the flow through path.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: December 31, 2024
    Assignee: Illinois Tool Works Inc.
    Inventors: Daniel Mudd, Mohamed Saleem, Arun Nagarajan, Andrew J. Staudt
  • Patent number: 12072719
    Abstract: A valve assembly used to control fluid flow rate. The valve assembly comprises a valve plunger and a shield. The valve plunger forces fluid having a flow rate to flow between an inlet and an outlet in response to an applied actuator force. The actuator force is applied to a first side and the fluid is applied to a second side of the valve plunger. The shield minimizes or eliminates a destabilizing force caused by static pressure, created by fluid interaction on the second side. The shield is either coupled to, formed in, or suspended from underneath the valve plunger and extends a length into the outlet. The valve assembly further comprises an orifice between the inlet and the outlet wherein the orifice comprises at least one planar surface and at least one non-planar surface. The shield shields a section of the second side from the fluid.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: August 27, 2024
    Assignee: Illinois Tool Works Inc.
    Inventors: Andrew J. Staudt, Bradley G. Carman, Mana Mokhtabad Amrei, Anthony B. Kehoe
  • Patent number: 12032394
    Abstract: A valve assembly used to control fluid flow rate. The valve assembly comprises a valve plunger and a shield. The valve plunger forces fluid having a flow rate to flow between an inlet and an outlet in response to an applied actuator force. The actuator force is applied to a first side and the fluid is applied to a second side of the valve plunger. The shield minimizes or eliminates a destabilizing force caused by static pressure, created by fluid interaction on the second side. The shield is either coupled to, formed in, or suspended from underneath the valve plunger and extends a length into the outlet. The valve assembly further comprises an orifice between the inlet and the outlet wherein the orifice comprises at least one planar surface and at least one non-planar surface. The shield shields a section of the second side from the fluid.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: July 9, 2024
    Assignee: Illinois Tool Works Inc.
    Inventors: Andrew J. Staudt, Bradley G. Carman, Mana Mokhtabad Amrei, Anthony B. Kehoe
  • Publication number: 20200201364
    Abstract: A valve assembly used to control fluid flow rate. The valve assembly comprises a valve plunger and a shield. The valve plunger forces fluid having a flow rate to flow between an inlet and an outlet in response to an applied actuator force. The actuator force is applied to a first side and the fluid is applied to a second side of the valve plunger. The shield minimizes or eliminates a destabilizing force caused by static pressure, created by fluid interaction on the second side. The shield is either coupled to, formed in, or suspended from underneath the valve plunger and extends a length into the outlet. The valve assembly further comprises an orifice between the inlet and the outlet wherein the orifice comprises at least one planar surface and at least one non-planar surface. The shield shields a section of the second side from the fluid.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 25, 2020
    Inventors: Andrew J. STAUDT, Bradley G. CARMAN, Mana Mokhtabad AMREI, Anthony B. KEHOE