Patents by Inventor Lawrence A. Jones

Lawrence A. Jones 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).

  • Publication number: 20050136187
    Abstract: A method for improving the adhesion of a functional coating to an article formed of compressed particles of exfoliated graphite, which includes applying a primer coating to the article, where the primer coating has as its constituents at least some of the constituents of the functional coating and exhibits greater adhesion to the article than does the functional coating.
    Type: Application
    Filed: December 23, 2003
    Publication date: June 23, 2005
    Inventors: Thomas Weber, Matthew Getz, Lawrence Jones, Jeremy Klug
  • Publication number: 20050119748
    Abstract: Cephalad and caudal vertebral facet joint prostheses and methods of use are provided. A pair of fixation elements are adapted to be secured within a vertebra in an orientation that best assures a secure and durable attachment to cortical and/or cancellous bone. Artificial facet joint surfaces are mounted on the fixation elements, either directly or with the aid of a support. The artificial facet joint structure may be carried by an arm. The artificial facet joint structure is adapted for articulation with a complementary natural or artificial facet joint structure. Bilateral prostheses may by coupled by a brace to further secure and stabilize the prostheses.
    Type: Application
    Filed: October 25, 2004
    Publication date: June 2, 2005
    Inventors: Mark Reiley, Robert Scribner, Lawrence Jones, David Stinson
  • Publication number: 20050104243
    Abstract: A method of forming impressions in a flexible graphite sheet is provided. More particularly, the inventive method involves contacting a flexible graphite sheet with an forming element capable of oscillating against the flexible graphite sheet, whereby the oscillations in the element are such that a plurality of impressions are formed in the flexible graphite sheet.
    Type: Application
    Filed: November 14, 2003
    Publication date: May 19, 2005
    Inventors: Robert Mercuri, Matthew Getz, Lawrence Jones
  • Publication number: 20050010291
    Abstract: Cephalad and caudal vertebral facet joint prostheses and methods of use are provided. The cephalad prostheses are adapted and configured to be attached to a lamina portion of a vertebra without blocking a pedicle portion of the cephalad vertebra. In some embodiments, the prosthesis is attached with a non-invasive support member, such as a clamp. In other embodiments, a translaminar screw may be used for additional fixation.
    Type: Application
    Filed: July 8, 2003
    Publication date: January 13, 2005
    Inventors: David Stinson, Lawrence Jones, Robert Scribner, Mark Reiley
  • Publication number: 20050004417
    Abstract: Systems and methods incorporate implant structures, and/or implantation devices, and/or surgical implantation techniques, to make possible the treatment of physiologic conditions, such as sleep disordered breathing, with enhanced effectiveness.
    Type: Application
    Filed: March 22, 2004
    Publication date: January 6, 2005
    Inventors: Lionel Nelson, Jinfang Liu, Ryan Boucher, Eric Doelling, J. Stine, Lawrence Jones
  • Patent number: 5812361
    Abstract: An electrostatic chuck system having an electrostatic chuck for securely holding a wafer on a surface of the electrostatic chuck. The electrostatic chuck system comprises a wafer bias sensor coupled to a first portion of the electrostatic chuck for sensing an alternating current signal at the first portion. The wafer bias sensor outputs, responsive to the alternating current signal, a direct current voltage level representative of a direct current bias level of the wafer. The electrostatic chuck system further comprises a variable electrostatic chuck power supply coupled to the wafer bias sensor. The variable electrostatic chuck power supply provides a first potential level to the first portion of the electrostatic chuck.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: September 22, 1998
    Assignee: Lam Research Corporation
    Inventors: Phillip Lawrence Jones, Seyed Jafar Jafarian-Tehrani, Boris V. Atlas, David R-Chen Liu, Ken Edward Tokunaga, Ching-Hwa Chen
  • Patent number: 5452611
    Abstract: An ultrasonic level instrument detects the presence of a fluid at a defined location and provides a self-diagnostic integrity check. An excitation circuit simultaneously induces vibrations at a first and second frequency in a transmitting piezoelectric crystal, and the vibrations are detected by a receiving crystal. A first and second filter circuit generate first and second filter outputs, respectively, by selectively passing the receiving crystal output at the first and second frequencies, respectively. The first filter output is indicative of the presence of fluid and the second filter output is indicative of the sensor integrity.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: September 26, 1995
    Assignee: Kay-Ray/Sensall, Inc.
    Inventors: Lawrence Jones, Alexander J. Esin, Boris S. Rosselson
  • Patent number: 5428984
    Abstract: An ultrasonic liquid level sensor includes an ultrasonic coupling element for use in self testing. The sensor includes a gap and a pair of transducers spaced apart by the gap. The sensor senses presence of liquid in the gap. The ultrasonic coupling element extends between the transducers and acoustically couples them together. The coupling element is used to test ultrasonic sensor integrity.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: July 4, 1995
    Assignee: Kay-Ray/Sensall, Inc.
    Inventors: Lawrence Jones, Boris Rosselson, Alex Esin
  • Patent number: 5296794
    Abstract: An identity state observer for a smooth-rotor permanent-magnet synchronous motor is derived which reconstructs the electrical and mechanical states of the motor from current and voltage measurements. The observer operates in the rotor frame and estimates direct and quadrature stator currents, rotor velocity, and rotor position. Since the rotor position is estimated, the rotor reference frame is approximated using the latest rotor position estimate. The motor dynamics and the transformation into the estimated rotor frame are nonlinear and thus the observer and observer error dynamics are nonlinear. Therefore, small signal stability is analyzed from a linearized model. Simulations including realistic measurement disturbances are used to investigate the global stabilitiy and accuracy of the observer.
    Type: Grant
    Filed: April 13, 1993
    Date of Patent: March 22, 1994
    Assignee: Massachusetts Institute of Technology
    Inventors: Jeffrey H. Lang, Lawrence A. Jones
  • Patent number: 5039939
    Abstract: Chip performance is measured using LSSD logic to propagate a signal through the LSSD scan path of the chip. The measurement data is compared to tabular data which is used to classify the AC chip performance. The use of the LSSD scan path provides an accurate overall measurement of an entire chip. The circuitry is internal to the system and does not require external test circuitry. No unique test patterns are required for a given chip design. The chip measurements can be made after installation of the chip in a field operational environment as well as during a manufacturing and testing environment. The chip measurements can be made by local execution of the testing or controlled from a remote location.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: August 13, 1991
    Assignee: International Business Machines Corporation
    Inventors: Carroll J. Dick, Bruce J. Ditmyer, Thomas L. Jeremiah, Lawrence Jones, Gregory S. Still
  • Patent number: 4248012
    Abstract: A miniature toy steerable car uses the selective direction of rotation of the motor to effectively steer the front wheels of the vehicle. A reversible motor selectively drives one of a pair of rear wheels by means of a gear arrangement and one-way drive mechanisms such that one or the other of the rear wheels of the vehicle acts to drive and propel the vehicle in a forward direction. The motor is coupled with a front wheel steering mechanism which causes the front wheels to turn in one direction when the rotation of the motor is clockwise and causes the front wheels to turn in the other direction when the rotation of the motor is reversed or made to rotate counterclockwise.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: February 3, 1981
    Inventors: James S. Kirby, Lawrence Jones, Walter Moe, Charles M. Diker