Patents by Inventor Stephen Arthur Ifft

Stephen Arthur Ifft 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: 9651410
    Abstract: A differential pressure fluid flow meter element for insertion between the connecting flanges of conduit sections of a fluid carrying conduit includes a flat orifice plate having a fluid contacting region for positioning in a flow of fluid through the conduit and a handle extending outward from an outer portion of the fluid contacting region. The flat orifice plate includes at least one pressure port formed in the fluid contacting region of the plate, and at least one impulse line channel formed in the flat orifice plate and extending from one of the at least one pressure port through the handle to a corresponding transmitter interface port. A plurality of apertures formed in the handle and disposed and arranged relative to the at least one transmitter interface port allow mounting of the process variable transmitter directly to the paddle style orifice plate handle, with the transmitter substantially perpendicular to a plane of the handle.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 16, 2017
    Assignee: Dieterich Standard, Inc.
    Inventors: John Henry Stehle, Paul Timothy Deegan, Stephen Arthur Ifft
  • Publication number: 20160290840
    Abstract: A differential pressure fluid flow meter element for insertion between the connecting flanges of conduit sections of a fluid carrying conduit includes a flat orifice plate having a fluid contacting region for positioning in a flow of fluid through the conduit and a handle extending outward from an outer portion of the fluid contacting region. The flat orifice plate includes at least one pressure port formed in the fluid contacting region of the plate, and at least one impulse line channel formed in the flat orifice plate and extending from one of the at least one pressure port through the handle to a corresponding transmitter interface port. A plurality of apertures formed in the handle and disposed and arranged relative to the at least one transmitter interface port allow mounting of the process variable transmitter directly to the paddle style orifice plate handle, with the transmitter substantially perpendicular to a plane of the handle.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 6, 2016
    Inventors: John Henry Stehle, Paul Timothy Deegan, Stephen Arthur Ifft
  • Patent number: 9285288
    Abstract: A retractable flow conditioner that includes a body adapted for insertion into a fluid in a confined conduit upstream of a differential pressure measuring probe. The body has at least one flow conditioning element. The retractable flow conditioner also includes a mounting assembly attached to the body. The mounting assembly is configured to retractably mount the body into the confined conduit.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: March 15, 2016
    Assignee: Dieterich Standard, Inc.
    Inventor: Stephen Arthur Ifft
  • Patent number: 9062994
    Abstract: A process flow device that includes a self-averaging orifice plate type of primary flow element with a high pressure tap located on or incorporated into its upstream surface, and a low pressure tap located on or incorporated into its downstream surface, for measuring, by a differential pressure process, the volumetric rate of fluid flow at a point in a fluid carrying conduit where the velocity profile of the fluid is asymmetric with respect to the longitudinal axis of the conduit. The improved pressure tap configuration consists of two fluid conduits, one carried by each of the downstream and upstream faces of the orifice plate, establishing fluid communication between openings in the downstream and upstream faces of the orifice plate and their respective terminal pressure ports.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: June 23, 2015
    Assignee: Dieterich Standard, Inc.
    Inventors: Stephen Arthur Ifft, Charles Theodore Orleskie
  • Publication number: 20150082895
    Abstract: A retractable flow conditioner that includes a body adapted for insertion into a fluid in a confined conduit upstream of a differential pressure measuring probe. The body has at least one flow conditioning element. The retractable flow conditioner also includes a mounting assembly attached to the body. The mounting assembly is configured to retractably mount the body into the confined conduit.
    Type: Application
    Filed: September 26, 2013
    Publication date: March 26, 2015
    Inventor: Stephen Arthur Ifft
  • Patent number: 7836780
    Abstract: A device comprises a sensor tube for placement in a process flow and a flow-modifying element. The flow-modifying element is formed on the sensor tube, in order to reduce flow-induced vibrations by reducing coherent vortex shedding in the process flow.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: November 23, 2010
    Assignee: Rosemount Inc.
    Inventors: John Everett Garnett, Stephen Arthur Ifft, Marcos A. V. Peluso, David Eugene Wiklund
  • Patent number: 7654154
    Abstract: An element of an averaging orifice plate fluid flow meter for measuring the volumetric rate of fluid flow in a conduit having an interior circumference for carrying a flow of fluid comprising, a planar flow impedance plate for disposition transversely across the interior of the conduit and perpendicular to the fluid flow, a plurality of spaced apart orifices disposed in the plate where the profile of each orifice is a segment of a circle on an arc where the arc is coincident with a portion of the interior circumference of the conduit.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: February 2, 2010
    Assignee: Dieterich Standard, Inc.
    Inventors: John Everett Garnett, Stephen Arthur Ifft
  • Publication number: 20090235757
    Abstract: An element of an averaging orifice plate fluid flow meter for measuring the volumetric rate of fluid flow in a conduit having an interior circumference for carrying a flow of fluid comprising, a planar flow impedance plate for disposition transversely across the interior of the conduit and perpendicular to the fluid flow, a plurality of spaced apart orifices disposed in the plate where the profile of each orifice is a segment of a circle on an arc where the arc is coincident with a portion of the interior circumference of the conduit.
    Type: Application
    Filed: March 21, 2008
    Publication date: September 24, 2009
    Inventors: John Everett Garnett, Stephen Arthur Ifft
  • Publication number: 20080307896
    Abstract: A process flow device that includes a self-averaging orifice plate type of primary flow element with a high pressure tap located on or incorporated into its upstream surface, and a low pressure tap located on or incorporated into its downstream surface, for measuring, by a differential pressure process, the volumetric rate of fluid flow at a point in a fluid carrying conduit where the velocity profile of the fluid is asymmetric with respect to the longitudinal axis of the conduit. The improved pressure tap configuration consists of two fluid conduits, one carried by each of the downstream and upstream faces of the orifice plate, establishing fluid communication between openings in the downstream and upstream faces of the orifice plate and their respective terminal pressure ports.
    Type: Application
    Filed: June 15, 2007
    Publication date: December 18, 2008
    Inventors: Stephen Arthur Ifft, Charles Theodore Orleskie