Patents Assigned to David
  • Patent number: 5521812
    Abstract: Devices and methods for providing emergency information. This emergency information device is a portable unit which may be carried to an emergency site. It is operative in response to parameter entries by the rescuer according to the victim's condition to provide sequential procedural displays of medical standard rescue steps for assisting the rescuer in carrying out the correct rescue operation. The standard rescue procedure is stored in a microprocessor which, if necessary, can be re-programmed to update to a new rescue standard procedure. It includes a recall feature operative for reverse searching of any desired step in the display if the condition of the victim changes during the rescue operation. Additionally, distinct tone signals are emitted at selected steps of the rescue operation procedure to assist the rescuer in memorizing and conducting such steps in the rescue.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: May 28, 1996
    Assignee: David L. Feder
    Inventors: David L. Feder, Milton L. Goff
  • Patent number: 5519242
    Abstract: An electrical circuit including an NMOS or lateral NPN bipolar transistor includes a zener diode connected thereto to provide ESD protection for the transistor. The NMOS transistor includes an N-type source, an N-type drain, a P-type channel region and a gate over and insulated from the channel region. The zener diode is electrically connected between the gate and the drain of the NMOS transistor with the anode of the zener diode being connected to the gate and the cathode of the zener diode being connected to the drain. For some purposes the anode of the zener diode is positioned close to the gate to provide the desired ESD protection. The lateral NPN bipolar transistor includes an N-type emitter and collector and a P-type base. The zener diode is connected between the collector and the base with the anode of the zener diode being connected to the base and the cathode of the zener diode being connected to the emitter.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: May 21, 1996
    Assignee: David Sarnoff Research Center, Inc.
    Inventor: Leslie R. Avery
  • Patent number: 5516150
    Abstract: A novel ski glove/grip interlock system is disclosed in which the ski pole grip is releasably attached to the glove in a manner to maintain it in proper reflexive grasping position with a preferred swing angle relative to the skier's hand. In one embodiment, a transverse lock bar is positioned immediately adjacent the intersection of the V between thumb and forefinger on the glove for pivotal connection to a clip formed on the ski pole grip. The position and tension of the lock bar on the glove can be adjusted with a series of straps. The connection between glove and ski pole grip permits pivoting of the grip and ski pole relative to the hand at a preferred swing angle while maintaining proper position of the ski pole grip relative to the glove.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: May 14, 1996
    Assignee: David P. Goode
    Inventors: David P. Goode, Frank E. Vogel
  • Patent number: 5514131
    Abstract: A method of medical ablation of tissue accessible thorough the mouth or nose is disclosed having the steps of: a) inserting a probe through the mouth into the oral cavity, wherein said probe has a disposable electrode enclosed within an insulating sleeve bendable therewith; b) steering said probe through the oral cavity into close proximity to the tissue; c) extending the disposable electrode and the insulating sleeve out of the probe and penetrating the tissue; and d) applying RF energy to the tissue surrounding the electrode to effect ablation of said tissue.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: May 7, 1996
    Assignees: Stuart D. Edwards, David L. Douglass
    Inventors: Stuart D. Edwards, David L. Douglass
  • Patent number: 5513519
    Abstract: A method of quantitatively measuring energy transfer efficiency changes resulting from modifications in a boiler system, comprising: measuring the amount of fuel used by the boiler to produce a certain quantity of energy in its output; making modifications to the boiler system; measuring the amount of fuel used by the boiler, after the modifications, to produce the same certain quantity of energy; and determining the difference in the measured fuel usages as a measure of the effectiveness of the boiler system modifications.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: May 7, 1996
    Assignee: David M. Cauger
    Inventors: David M. Cauger, Andrew Sanford
  • Patent number: 5514451
    Abstract: Conductive via fill inks for green tapes to be stacked and bonded to a support substrate, the glass used for the green tape having a firing temperature from 850.degree.-950.degree. C., wherein the glass used for the via fill ink has a glass transition temperature that is higher than that of the glass used to make the green tape, preferably does not crystallize at the maximum firing temperature of the green tape and comprises from 30-75 percent by volume of the glass-conductive metal powder mixture of the via fill ink. These conductive via fill inks will not shrink until the green tape shrinkage has commenced during firing of the composite circuit board and they will flow slightly during firing, forming good bonds to the glass in the walls of the vias, thereby ensuring good integrity of the vias and good connections to the circuitry on the fired ceramic multilayer circuit board.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: May 7, 1996
    Assignee: David Sarnoff Research Center, Inc.
    Inventors: Ananda H. Kumar, Barry J. Thaler, Ashok N. Prabhu, Ellen S. Tormey
  • Patent number: 5509918
    Abstract: A method and apparatus for drilling a curved bore are disclosed, wherein the apparatus includes a handle (20) and a removable cartridge (174) in which cutting bits (240) are disposed to produce the bore. The handle includes a trigger (66), (66'), or (66"), which the user squeezes toward a grip (24) of the handle to both energize a pneumatic motor (42) and to advance the opposed cutting bits in curved arcs at different rates. As the trigger is squeezed, a curved guide arm (234) conveying one of the cutting bits is advanced more rapidly than the other curved guide arm, passing a median point in the bore and then being withdrawn as the other curved guide arm and cutting bit are advanced past the median point. Thus, interference between the two cutting bits is avoided and a clean bore hole is produced. In addition, the removable cartridge minimizes breakage of a flexible drive cable (238) used to transmit rotational force to the cutting bits from rotating left and right extended drive shafts (190 and 192).
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: April 23, 1996
    Assignee: David Romano
    Inventor: Jack W. Romano
  • Patent number: 5505373
    Abstract: A box for conveniently storing and dispensing food has a back wall and a slide connected to the back wall. The slide has a slide opening and two side tabs extending from the slide. A front wall with an opening is connected to the back wall. The box also has an interior supporting wall having first and second side slits. The slide is disposed within the box, with each of the tabs being inserted into a corresponding one of the slits. The box has an open position in which the openings are aligned and in which the contents of the box may be poured out, and a closed position. The box may be made of sulfate cellulose cardboard.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: April 9, 1996
    Assignee: David Hossein Todjar-Hengami
    Inventor: Christoph G. von Stillfried
  • Patent number: 5502445
    Abstract: There is described an electronic interrogation and identification (I/I) system in which an interrogator/reader (I/R) unit operates remotely using a microwave beam in conjunction with one or more coded articles. The articles are identified by a unique method and search sequence. As the I/R unit interrogates the articles, one or more of them respond to the I/R unit whenever a code word (data value) sent from the I/R unit matches a code word stored in one or more of the memory positions within the articles. After searching through all of the possible code words and word positions the I/R unit will have identified at least one code word stored in each of the word positions of at least one article. Then combinations of the just-identified code words are matched with the respective stored words of the various articles. After being uniquely identified each article is "powered-down" on command from the I/R unit and remains inactive so that one-by-one all remaining articles are also identified.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: March 26, 1996
    Assignee: David Sarnoff Research Center, Inc.
    Inventors: Andrew G. F. Dingwall, Jonathan L. Schepps
  • Patent number: 5500612
    Abstract: A constant impedance sampling switch suitable for a high-frequency analog-to-digital converter, presents a substantially constant impedance to the input signal regardless of the instantaneous level of the input signal. The exemplary sampling switch employs a single metal oxide semiconductor (MOS) transistor to selectively couple the input signal to a sampling circuit. The gate signal for this transistor is generated by circuitry which is disconnected from the gate of the transistor while the transistor is in an non-conductive state. During a sampling interval, the gate signal is boot-strapped by the instantaneous potential of the input signal to render the transistor conductive. Accordingly, the potential difference between the signal being sampled and the gate potential of the transistor remains substantially constant over a relatively wide range of amplitudes for the analog input signal.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: March 19, 1996
    Assignee: David Sarnoff Research Center, Inc.
    Inventor: Donald J. Sauer
  • Patent number: 5497127
    Abstract: A voltage controlled oscillator (VCO) which may be adjusted to provide oscillatory signals for a wide range of frequencies includes a relaxation oscillator in which a ramp signal is compared to a reference threshold which exhibits hysteresis. The frequency of the oscillator is changed by varying the hysteresis range of the threshold level and by changing the rate at which the ramp is generated. At higher frequencies, the signal processing delay through the comparator is a factor in determining the frequency of the signal produced by the oscillator. Current sources internal to the oscillator are controlled by a reference potential that is generated from an externally supplied band-gap reference potential. The VCO is used in a phase-locked loop which includes a charge pump circuit that accumulates charge on a capacitor responsive to limited-width pulses applied to a current source which is controlled by the reference potential generated in the VCO.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: March 5, 1996
    Assignee: David Sarnoff Research Center, Inc.
    Inventor: Donald J. Sauer
  • Patent number: 5490571
    Abstract: This invention concerns an accessory, to be inserted in a drill string behind a drill bit, to provide separation of the liquid and air components of a flushing medium. The accessory comprises an inner housing (36) within an outer housing (34). A liquid/gas medium enters through opening (50) onto spiral raceway (48). Holes are provided at intervals along spiral (42). Liquid in the medium is centrifuged by the spiral (42) and projected into the chamber between inner and outer housings (36,34). The expelled liquid (52) falls to the base (70) of the housing (34) where it passes through apertures (38) into the drill bore. Once the medium has traversed the spiral (42) essentially only gas remains to pass through the opening (62) to the drill bit.
    Type: Grant
    Filed: January 25, 1995
    Date of Patent: February 13, 1996
    Assignees: Christopher Richard Carrall, David Thomas Hanns, Jo-Ann Nicol
    Inventors: David T. Hanns, Christopher R. Carrall
  • Patent number: 5491482
    Abstract: There is described an electronic interrogation and identification (I/I) system in which an interrogator/reader (I/R) unit operates remotely using a microwave beam in conjunction with one or more coded articles. The articles are identified by a unique method and search sequence. As the I/R unit interrogates the articles, one or more of them respond to the I/R unit whenever a code word (data value) sent from the I/R unit matches a code word stored in one or more of the memory positions within the articles. After searching through all of the possible code words and word positions the I/R unit will have identified at least one code word stored in each of the word positions of at least one article. Then combinations of the just-identified code words are matched with the respective stored words of the various articles. After being uniquely identified each article is "powered-down" on command from the I/R unit and remains inactive so that one-by-one all remaining articles are also identified.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: February 13, 1996
    Assignee: David Sarnoff Research Center, Inc.
    Inventors: Andrew G. F. Dingwall, Jonathan L. Schepps
  • Patent number: D368048
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: March 19, 1996
    Assignee: David Rozenvasser
    Inventor: David Rozenwasser
  • Patent number: D368049
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: March 19, 1996
    Assignee: David Rozenvasser
    Inventor: David Rozenwasser
  • Patent number: D368968
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: April 16, 1996
    Assignee: David H. Markovich
    Inventors: David H. Markovich, William M. Foster
  • Patent number: PP9524
    Abstract: A shrub rose having repeat flowering with rich yellow old fashioned shaped flowers.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: April 30, 1996
    Assignee: David Austin Roses Limited
    Inventor: David C. H. Austin
  • Patent number: PP9526
    Abstract: A repeat flowering shurb rose having pale pink, scented, very full, old fashioned shaped flowers.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: April 30, 1996
    Assignee: David Austin Roses Limited
    Inventor: David C. H. Austin
  • Patent number: PP9527
    Abstract: A repeat flowering shrub rose of good branching habit having golden yellow and apricot colored old-fashioned shaped flowers and dark foliage.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: April 30, 1996
    Assignee: David Austin Roses Limited
    Inventor: David C. H. Austin
  • Patent number: D370184
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: May 28, 1996
    Assignee: David Rozenvasser
    Inventor: David Rozenwasser