Patents by Inventor John F. Smith

John F. Smith 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: 20220205589
    Abstract: A method of generating a pressurized, sub-cooled mixed-phase cryogen is disclosed, including providing a cryogenic system including a reservoir containing a liquid cryogen; and a heat exchange coil immersed in the liquid cryogen, the heat exchange coil having an input end and an output end not immersed in the liquid cryogen; introducing a pressurized gas cryogen to the input end of the heat exchange coil; cooling the pressurized gas cryogen within the heat exchange coil; and collecting the pressurized gas cryogen at an output end of the heat exchange coil.
    Type: Application
    Filed: March 18, 2022
    Publication date: June 30, 2022
    Inventors: John M. Baust, Joshua T. Smith, Anthony T. Robilotto, Jennie F. McKain
  • Publication number: 20140245205
    Abstract: Embodiments that relate to systems and methods for navigating a user interface via a keyboard are provided. In one embodiment, one or more keystroke events corresponding to one or more keystrokes are received from a listener module. The one or more keystrokes are associated with one or more keys that correspond to a navigation direction in the user interface. A current HTML element in the user interface is identified that has a keyboard focus and may receive input from a keyboard navigation module. A destination HTML element that is nearest to the current HTML element in the navigation direction and can receive keyboard focus is located in the user interface. The keyboard focus is then moved to the destination HTML element.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 28, 2014
    Applicant: MICROSOFT CORPORATION
    Inventor: John F. Smith
  • Patent number: 5527628
    Abstract: A Pb-free solder includes a ternary eutectic composition consisting essentially of about 93.6 weight % Sn-about 4.7 weight % Ag-about 1.7 weight % Cu having a eutectic melting temperature of about 217.degree. C. and variants of the ternary composition wherein the relative concentrations of Sn, Ag, and Cu deviate from the ternary eutectic composition to provide a controlled melting temperature range (liquid-solid "mushy" zone) relative to the eutectic melting temperature (e.g. up to 15.degree. C. above the eutectic melting temperature).
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: June 18, 1996
    Assignees: Iowa State University Research Foudation, Inc., Sandia Corporation
    Inventors: Iver E. Anderson, Frederick G. Yost, John F. Smith, Chad M. Miller, Robert L. Terpstra
  • Patent number: 5503360
    Abstract: This disclosure relates to a device which enables adjustments and positioning in three dimensions for racks and other bulk stowage structures. A friction surface provides a sliding adjustment for stowage structures having surfaces in contact therewith. Further, a pin connected to a spacer is slidably inserted into a button base to enable vertical adjustments for raising and lowering the stowage structure, as needed, by adding or removing shims thereon.
    Type: Grant
    Filed: May 5, 1994
    Date of Patent: April 2, 1996
    Assignee: FMC Corp.
    Inventors: Keith A. Zimmerman, John F. Smith, John D. Stein
  • Patent number: 5251486
    Abstract: A method for measuring texture of metal plates or sheets using non-destructive ultrasonic investigation includes measuring the velocity of ultrasonic energy waves in lower order plate modes in one or more directions, and measuring phase velocity dispersion of higher order modes of the plate or sheet if needed. Texture or preferred grain orientation can be derived from these measurements with improves reliability and accuracy. The method can be utilized in production on moving metal plate or sheet.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: October 12, 1993
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: R. Bruce Thompson, John F. Smith, Seung S. Lee, Yan Li
  • Patent number: 4899589
    Abstract: A method for measuring texture of metal plates or sheets using non-destructive ultrasonic investigation includes measuring the velocity of ultrasonic energy waves in lower order plate modes in one or more directions, and measuring phase velocity dispersion of higher order modes of the plate or sheet if needed. Texture or preferred grain orientation can be derived from these measurements with improved reliability and accuracy. The method can be utilized in production on moving metal plate or sheet.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: February 13, 1990
    Assignee: Iowa State University Research Foundation
    Inventors: R. Bruce Thompson, John F. Smith, Seung S. Lee, Yan Li
  • Patent number: 4843399
    Abstract: A hand held navigational-communications transceiver is compressed into a case having a volume of about 37 cubic inches by defining functional implementation for VOR (VHF omni-directional range) navigation. The transceiver can be selectively switched to process and display directional radial information. A microprocessor circuit provides primary circuitry information in combination with transceiver function software held in ROM (read only memory). A plurality of pre-programmed frequencies may be selected.
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: June 27, 1989
    Assignee: Narco Avionics, Inc.
    Inventors: Robert A. Bongiorno, John F. Smith
  • Patent number: 4778394
    Abstract: The cartridge disclosed is provided with an extractor means which is instrumental in the removal of the cartridge from the machine, by providing a smooth camming action to move the cartridge away from the machine circuit board. The extractor allows the cartridge to protrude only a small amount outside the machine housing and still be removed such that the cartridge is not rocked or moved to and fro relative to the machine circuit board.
    Type: Grant
    Filed: December 19, 1986
    Date of Patent: October 18, 1988
    Assignee: International Business Machines Corporation
    Inventor: John F. Smith
  • Patent number: 4368089
    Abstract: An improved method for manufacturing a dentifrice containing dispersed speckles therein includes converting a gel or paste dental composition into a plurality of flowing ribbons thereof, directing a stream of speckles onto one such ribbon of dental composition, to which the speckles adhere, bringing together such stream and another stream of such dental compositions so that they adhere together with the deposited speckles sandwiched between them, and controlling relative feed rates of the dental composition and the speckles so that there is produced a dentifrice containing the speckles distributed through it in desired proportion. Also described are apparatuses for carrying out the process.
    Type: Grant
    Filed: September 30, 1981
    Date of Patent: January 11, 1983
    Assignee: Colgate-Palmolive Company
    Inventor: John F. Smith
  • Patent number: 4044309
    Abstract: A radio receiver squelch circuit operative as a function of a comparison of the audio component level of the detected signal with the noise component level, so as to amplify and pass signals when the audio component exceeds the noise component by a predetermined ratio and to shunt the signals, thus squelching any output, when the noise component exceeds the audio component by a predetermined ratio. The circuit incorporates a hysteresis function such that the audio level required to initiate squelch is less than that required to break squelch.
    Type: Grant
    Filed: February 9, 1976
    Date of Patent: August 23, 1977
    Assignee: Narco Scientific Industries, Inc.
    Inventor: John F. Smith
  • Patent number: 3968383
    Abstract: In a radio receiver, noise limiter apparatus specifically designed to clip impulse noise and to pass the audio signal undistorted up to about 80% carrier modulation. The noise limiter comprises a clipping circuit which is normally turned on by the audio signal to pass same, and a noise impulse amplifier branch containing an amplifier which is edgetriggered to cause clipping during the presence of noise impulses and to eliminate an output from the impulse amplifier when an audio signal is present.
    Type: Grant
    Filed: July 10, 1974
    Date of Patent: July 6, 1976
    Assignee: Narco Scientific Industries, Inc.
    Inventor: John F. Smith
  • Patent number: 3949296
    Abstract: For use in a channel synthesizer utilizing a pulse swallowing phase locked loop, an eight bit code represents the megahertz component of the selected channel. An eight stage shift register is preloaded with the coded version of the selected megahertz component, and exclusive OR logic responsive selectively to the first, third, fifth, and eighth stages generates data for the first stage during the next shift. NAND logic responsive to the various stages detects presence of certain code combinations which are representative of terminal count states. Each terminal count pulse is utilized for comparison with the frequency reference in the phase locked loop, and also in a feedback arrangement to reset the registers to their preloaded states.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: April 6, 1976
    Assignee: Narco Scientific Industries, Inc.
    Inventors: Boyd M. McClaskey, John F. Smith
  • Patent number: 3949305
    Abstract: In order to produce signals having a desired communication channel frequency, a phase locked loop is provided, along with appropriate frequency division. For channels in the megahertz range having bandwidth in the kilohertz range, a kilohertz reference is provided for comparison, to drive the voltage controlled oscillator. The oscillator output is divided by the megahertz quantity, and by optional division multiples in the kilohertz channel range. In particular, a first division ratio is utilized for a portion of a reference cycle, and a second division ratio for the remainder of this cycle. Preloaded logic controls the two division rates, and by adjusting the portions of the cycle, correspondingly regulates the effective division ratio for the loop, and yields the proper channel frequency for locking.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: April 6, 1976
    Assignee: Narco Scientific Industries, Inc.
    Inventors: McClaskey, Boyd M., John F. Smith