Patents by Inventor James M. Potter

James M. Potter 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: 11430174
    Abstract: Techniques are disclosed relating to specifying memory consistency constraints. In some embodiments, an instruction may specify, for a memory operation, a type of memory consistency and a scope at which to enforce the type of consistency. For example, these fields may specify whether to sequence memory accesses relative to the operation at one or more of multiple different cache levels based on the type of memory consistency and the scope.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: August 30, 2022
    Assignee: Apple Inc.
    Inventors: Terence M. Potter, Richard W. Schreyer, James J. Ding, Alexander K. Kan, Michael Imbrogno
  • Patent number: 10624199
    Abstract: A system for injecting radio frequency (RF) pulses into an RF linear accelerator (RF LINAC) cavity is described. In accordance with the description an RF power amplifying element, typically a compact planar triode (CPT), is directly mounted to an outside of a hermetically sealed RF cavity. The direct mounting of the RF power amplifying element places the antenna—responsible for coupling power into the RF cavity—physically on the RF cavity side of a hermetic high-voltage (HV) break. The RF input, RF circuitry, biasing circuitry, and RF power amplifier are all outside of the vacuum cavity region. The direct mounting arrangement facilitates easy inspection and replacement of the RF power amplifier, the RF input and biasing circuitry. The direct mounting arrangement also mitigates the deleterious effects of multipactoring associated with placing the RF power amplifier and associated RF circuitry in the vacuum environment of the RF LINAC cavity.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: April 14, 2020
    Assignee: Starfire Industries, LLC
    Inventors: Robert A. Stubbers, Brian E. Jurczyk, Thomas J. Houlahan, Jr., James M. Potter
  • Publication number: 20180124910
    Abstract: A system for injecting radio frequency (RF) pulses into an RF linear accelerator (RF LINAC) cavity is described. In accordance with the description an RF power amplifying element, typically a compact planar triode (CPT), is directly mounted to an outside of a hermetically sealed RF cavity. The direct mounting of the RF power amplifying element places the antenna—responsible for coupling power into the RF cavity—physically on the RF cavity side of a hermetic high-voltage (HV) break. The RF input, RF circuitry, biasing circuitry, and RF power amplifier are all outside of the vacuum cavity region. The direct mounting arrangement facilitates easy inspection and replacement of the RF power amplifier, the RF input and biasing circuitry. The direct mounting arrangement also mitigates the deleterious effects of multipactoring associated with placing the RF power amplifier and associated RF circuitry in the vacuum environment of the RF LINAC cavity.
    Type: Application
    Filed: November 3, 2017
    Publication date: May 3, 2018
    Inventors: Robert A. Stubbers, Brian E. Jurczyk, Thomas J. Houlahan, JR., James M. Potter
  • Patent number: 9948011
    Abstract: A superluminal antenna element integrates a balun element to better impedance match an input cable or waveguide to a dielectric radiator element, thus preventing stray reflections and consequent undesirable radiation. For example, a dielectric housing material can be used that has a cutout area. A cable can extend into the cutout area. A triangular conductor can function as an impedance transition. An additional cylindrical element functions as a sleeve balun to better impedance match the radiator element to the cable.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: April 17, 2018
    Assignee: Los Alamos National Security, LLC
    Inventors: John Singleton, Lawrence M. Earley, Frank L. Krawczyk, James M. Potter, William P. Romero, Zhi-Fu Wang
  • Publication number: 20170133768
    Abstract: A superluminal antenna element integrates a balun element to better impedance match an input cable or waveguide to a dielectric radiator element, thus preventing stray reflections and consequent undesirable radiation. For example, a dielectric housing material can be used that has a cutout area. A cable can extend into the cutout area. A triangular conductor can function as an impedance transition. An additional cylindrical element functions as a sleeve balun to better impedance match the radiator element to the cable.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 11, 2017
    Inventors: John SINGLETON, Lawrence M. EARLEY, Frank L. KRAWCZYK, James M. POTTER, William P. ROMERO, Zhi-Fu WANG
  • Patent number: 9608330
    Abstract: A superluminal antenna element integrates a balun element to better impedance match an input cable or waveguide to a dielectric radiator element, thus preventing stray reflections and consequent undesirable radiation. For example, a dielectric housing material can be used that has a cutout area. A cable can extend into the cutout area. A triangular conductor can function as an impedance transition. An additional cylindrical element functions as a sleeve balun to better impedance match the radiator element to the cable.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: March 28, 2017
    Assignee: Los Alamos National Laboratory
    Inventors: John Singleton, Lawrence M. Earley, Frank L. Krawczyk, James M. Potter, William P. Romero, Zhi-Fu Wang
  • Publication number: 20130201073
    Abstract: A superluminal antenna element integrates a balun element to better impedance match an input cable or waveguide to a dielectric radiator element, thus preventing stray reflections and consequent undesirable radiation. For example, a dielectric housing material can be used that has a cutout area. A cable can extend into the cutout area. A triangular conductor can function as an impedance transition. An additional cylindrical element functions as a sleeve balun to better impedance match the radiator element to the cable.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 8, 2013
    Inventors: John Singleton, Lawrence M. Earley, Frank L. Krawczyk, James M. Potter, William P. Romero, Zhi-Fu Wang
  • Patent number: 8274806
    Abstract: The systems and methods presented herein provide for readily configurable high voltage electrical energy generation. For example, a high voltage electrical energy generation system may include an AC power supply configured with an inductor to transfer AC electrical energy. In this regard, the system may also include a first receptor stage that includes an inductor for inductively coupling to the inductor of the AC power supply to receive the AC electrical energy. Similarly, a second receptor stage may inductively couple to the inductor of the AC power supply as well as to the inductor of the first receptor stage to receive the AC electrical energy, with each receptor being configured as a stackable plate. Each receptor stage may include a rectifier that converts the AC electrical energy to DC electrical energy. The rectifiers may be coupled together via a DC to DC connection provide a DC bias.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: September 25, 2012
    Assignee: Applied Energetics, Inc
    Inventors: Rudolf H. Potter, Richard J Adler, James M. Potter
  • Patent number: 6850071
    Abstract: The method and apparatus of the present invention are useful for the monitoring of the electrical signals within an internal combustion spark plug circuit and the killing of a spark plug within that circuit. The invention essentially consists of connecting a transformer to the high voltage side of the spark plug circuit. Through the use of impedance and inductance, the present invention can either produce a low voltage replica of the waveform of the high voltage electrical signal which is directed to a spark plug or can effectively prohibit that spark plug from firing by short circuiting the low voltage side of the transformer of the device.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: February 1, 2005
    Assignee: Automotive Test Solutions, Inc.
    Inventors: Neal R. Pederson, Bernie C. Thompson, James M. Potter
  • Patent number: 6774741
    Abstract: A non-uniform transmission line includes at least one patterned conductive layer, a dielectric layer adjacent to the patterned conductive layer(s), and an insulating layer surrounding the patterned conductive layer(s) and the dielectric layer.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: August 10, 2004
    Assignee: DeCorp Americas, Inc.
    Inventors: Michael W. McCurdy, David Murray, James M. Potter, Robert J. Sexton, Linda Sue Walling
  • Publication number: 20030222727
    Abstract: A non-uniform transmission line includes at least one patterned conductive layer, a dielectric layer adjacent to the patterned conductive layer(s), and an insulating layer surrounding the patterned conductive layer(s) and the dielectric layer.
    Type: Application
    Filed: May 28, 2002
    Publication date: December 4, 2003
    Inventors: Michael W. McCurdy, David Murray, James M. Potter, Robert J. Sexton, Linda Sue Walling
  • Patent number: 6377004
    Abstract: A thin vacuum valve for particle accelerator beam lines comprising of a frame, a slide, a shaft, a first clamp, and preferably a second clamp, which is easily constructed from highly electrically conductive material and presents substantially smooth, flat surfaces towards adjacent particle accelerator component. The frame has first and second surfaces respectively facing toward the two adjacent particle accelerator system components, the first surface including a slide slot. A frame orifice extends through the frame between the first and second surfaces, preferably at the slide slot, and is positioned and sized on the frame to permit passage of a particle beam generated by the particle accelerator system along a beam line The slide is housed substantially within the slide slot and is movable between a first position and a second position along a slide axis. In the first position, the slide permits a particle beam to pass through the slide orifice and through the frame orifice along the beam line.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: April 23, 2002
    Assignee: International Isotopes, Inc.
    Inventors: Floyd Del McDaniel, James M. Potter, Gan Li
  • Patent number: 6201355
    Abstract: The apparatus is a gas filled ultraviolet generating lamp for use as a liquid purifier. The lamp is powred by high voltage AC, but has no metallic electrodes within or in contact with the gas enclosure which is constructed as two concentric quartz cylinders sealed together at their ends with the gas fill between the cylinders. Cooling liquid is pumped through the volume inside the inner quartz cylinder where an electrically conductive pipe spaced from the inner cylinder is used to supply the cooling liquid and act as the high voltage electrode. The gas enclosure is enclosed within but spaced from a metal housing which is connected to operate as the ground electrode of the circuit and through which the treated fluid flows. Thus, the electrical circuit is from the central pipe, and through the cooling liquid, the gas enclosure, the treated liquid on the outside of the outer quartz cylinder, and to the housing.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: March 13, 2001
    Assignee: Triton Thalassic Technologies, Inc.
    Inventors: Gary L. Morgan, James M. Potter
  • Patent number: 5834784
    Abstract: The apparatus is a gas filled ultraviolet generating lamp for use as a liquid purifier. The lamp is powered by high voltage AC, but has no metallic electrodes within or in contact with the gas enclosure which is constructed as two concentric quartz cylinders sealed together at their ends with the gas fill between the cylinders. Cooling liquid is pumped through the volume inside the inner quartz cylinder where an electrically conductive pipe spaced from the inner cylinder is used to supply the cooling liquid and act as the high voltage electrode. The gas enclosure is enclosed within but spaced from a metal housing which is connected to operate as the ground electrode of the circuit and through which the treated fluid flows. Thus, the electrical circuit is from the central pipe, and through the cooling liquid, the gas enclosure, the treated liquid on the outside of the outer quartz cylinder, and to the housing.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: November 10, 1998
    Assignee: Triton Thalassic Technologies, Inc.
    Inventors: Gary L. Morgan, James M. Potter
  • Patent number: 5382914
    Abstract: A compact proton-beam therapy linac utilizing a linear, cascaded organization including a proton source, a radio-frequency-quadrupole (RFQ) linac coupled to the output of the source, a stepped-frequency (around 500- to around 100-MHz), low-peak-beam-current (around 100- to around 300-.mu. A) drift-tube linac (DTL) coupled to receive the output of the RFQ, and a plural-stage, low-peak-beam-current stage-switchable, side-coupled linac (SCL) coupled to the output of the DTL for producing the ultimate output proton-therapy beam.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: January 17, 1995
    Assignee: AccSys Technology, Inc.
    Inventors: Robert W. Hamm, Kenneth R. Crandall, James M. Potter
  • Patent number: 5315120
    Abstract: A radio-frequency quadrupole which includes four, extruded, identical cross-section, elongate structural components, each of which lacks any longitudinally extending plane of bilateral assembly. Joinder of these components to form a quadrupole body results in an overall axial cross-sectional configuration which has an infinite number of claims of inverted bilateral symmetry extending in all radial directions relative to the long axis of that body. Coolant-carrying boreholes extend longitudinally throughout each component with precise location and proper longitudinal-axial-parallelism.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: May 24, 1994
    Assignee: AccSys Technology, Inc.
    Inventor: James M. Potter
  • Patent number: 5179350
    Abstract: Apparatus for normalizing and maximizing the performance of a drift tube on the operational axis of a drift tube linac. The apparatus features drift tube positioning through structure which includes orthogonally disposed, facially complementary datum surfaces, interposed which surfaces are dimensionally stable, clamped shim structure. Also offered is independently attachable/detachable (non-dedicated in place) adjustment mechanism employable to effect adjustments in the usual post-coupler structures associated with drift tubes.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: January 12, 1993
    Assignee: AccSys Technology, Inc.
    Inventors: John H. Bower, James M. Potter, Joseph P. Rymer
  • Patent number: 4485346
    Abstract: A linear accelerator system includes a plurality of post-coupled drift-tubes wherein each post coupler is bistably positionable to either of two positions which result in different field distributions. With binary control over a plurality of post couplers, a significant accumlative effect in the resulting field distribution is achieved yielding a variable-energy drift-tube linear accelerator.
    Type: Grant
    Filed: July 15, 1982
    Date of Patent: November 27, 1984
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Donald A. Swenson, Thomas J. Boyd, Jr., James M. Potter, James E. Stovall