Patents Represented by Attorney William A. Marvin
  • Patent number: 6614831
    Abstract: A mounting enclosure and an improved mounting arrangement for apparatus used in metal melting, refining and processing, particularly those apparatus adapted for steel making in an electric arc furnace, such as burners, lances and the like with supersonic oxygen lancing capability and injectors or the like for the introduction of particulate matter. The mounting enclosure is fluid cooled to survive the hostile environment of the electric arc furnace and is designed to occupy the step between the side wall and hearth of the furnace without any substantial change to the structure of the furnace. The mounting enclosure comprises a plurality of fluid cooling conduits surrounding an apparatus aperture and an injector aperture which are formed through the enclosure and adapted to mount an apparatus and an injector. The mounting arrangement includes utilizing the mounting enclosure to mount an apparatus with supersonic oxidizing gas lancing capability and an injector for particulate carbon in an electric arc furnace.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: September 2, 2003
    Assignee: Process Technology International, Inc.
    Inventor: Valery G. Shver
  • Patent number: 6468571
    Abstract: A method for processing fresh garlic which will not leave an unpleasant odor after having been digested is disclosed. The fresh garlic can be peeled, unpeeled, minced or chopped prior to processing. Garlic is composed of many tiny micrograms containing aromatic oils that are responsible for its strong odor. It has been determined with the correct processing of the fresh garlic by microwaving an aqueous or water soluble solution of fresh garlic, that most if not all of the tiny micrograms can be ruptured such that the aromatic oils can be easily neutralized by digestion. Solutions that are useful in practicing the invention are pure boiled water, boiled water and vinegar, boiled water and lemon juice, and lemon juice in natural concentration. The microwave radiation is useful in rupturing the micrograms without a total cooking of the garlic which would remove its fresh flavor and texture. In addition, edible salts can also be added during the process to adjust taste or as a preservative.
    Type: Grant
    Filed: March 3, 2001
    Date of Patent: October 22, 2002
    Inventor: Tony S. Zaboli
  • Patent number: 6372010
    Abstract: An improved method and apparatus for metal melting, refining and processing, particularly adapted to steel making in an electric arc furnace. The method provides auxiliary thermal energy to the steel making process, particulate injection for the formation of slag and foamy slag, and oxygen injection for the decarburization of the melt, for the formation of foamy slag and for post combustion burning of carbon monoxide. The burner includes two injection barrels for providing finely pulverized particles and for providing either a supersonic or a subsonic primary flow of an oxidizing gas. The barrels are positioned side by side in a nozzle at the entrance of a flame shaping chamber of a fluid cooled combustion chamber. The nozzle also contains a plurality of fuel orifices for the providing pressurized fuel to the combustion chamber and a plurality of oxidizing gas orifices for providing a secondary flow of an oxidizing gas around the periphery of the nozzle.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: April 16, 2002
    Assignee: Process Technology International, Inc.
    Inventors: Valery G. Shver, Terry E. Pulliam
  • Patent number: 6342086
    Abstract: An improved method and apparatus for EAF steelmaking wherein the method provides additional thermal energy to the steel making process, carbon injection for the formation of foamy slag, and oxygen injection for the decarburization of the melt, the formation of foamy slag and post combustion burning of carbon monoxide. The apparatus comprises a unique burner configuration which has a central conduit for alternatively supplying fluid hydrocarbon fuel or particulate carbon with a carrier gas which are discharged through a exit opening. The fuel or carbon is mixed with a high speed, preferably supersonic, stream of oxidizing gas. The high speed stream of oxidizing gas is provided by an annular supersonic nozzle which causes the oxidizing gas to surround the fuel or the particulates with an annular flow. The annular nozzle design can be adjusted to direct the flows of particulates and oxidizing gases in the areas and shapes desired for efficient management of the steelmaking process.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: January 29, 2002
    Assignee: Process Technology International, Inc.
    Inventor: Valery G. Shver
  • Patent number: 6212218
    Abstract: An improved apparatus for EAF steelmaking providing a lance for the injection of oxidizing gas, preferably oxygen, or other metallurgical gases and particulate materials into a steelmaking process. In one embodiment, the apparatus comprises a lance body configuration which has a central conduit for the supply of a pressurized flow of oxygen. A consumable lance tip made of refractory material is connected to the lance body such that it is in fluid communication with the central conduit.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: April 3, 2001
    Assignee: Process Technology International, Inc.
    Inventor: Valery G. Shver
  • Patent number: 6197354
    Abstract: A method for processing fresh garlic which will not leave an unpleasant odor after having been digested is disclosed. The fresh garlic can be peeled, unpeeled, minced or chopped prior to processing. Garlic is composed of many tiny micrograins containing aromatic oils that are responsible for its strong odor. It has been determined with the correct processing of the fresh garlic by microwaving an aqueous or water soluble solution of fresh garlic, that most if not all of the tiny micrograms can be ruptured such that the aromatic oils can be easily neutralized by digestion. Solutions that are useful in practicing the invention are pure boiled water, boiled water and vinegar, boiled water and lemon juice, and lemon juice in natural concentration. The microwave radiation is useful in rupturing the micrograins without a total cooking of the garlic which would remove its fresh flavor and texture. In addition, edible salts can also be added during the process to adjust taste or as a preservative.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: March 6, 2001
    Inventor: Tony S. Zaboli
  • Patent number: 5825479
    Abstract: A method and apparatus for distinguishing between fiber types having different dispersion characteristics and arbitrary lengths is disclosed. An optical pulse having a predetermined wavelength and predetermined time width is propagated through the fiber and then detected. The optical pulse after being fed through the fiber is measured at different wavelengths along with the length of the fiber. If the measured pulse is within a predetermined amount at the determined length, then fiber under test corresponds to a type having a first dispersion characteristic. If it is determined that the measured pulse is within a second amount, then the fiber under test corresponds to a type having a second dispersion characteristic. Alternately one or more optical pulses of arbitrary width each having different wavelengths after being propagated through the fiber under test is fed through a plurality of filters and detected.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: October 20, 1998
    Assignee: VeriFiber Technologies, Inc.
    Inventors: Leo J. Thompson, Emmanuel Anemogiannis
  • Patent number: 5631693
    Abstract: An on demand services feature for the provision of video, audio, and data services for a subscription system of the CTV type, or the like. The system comprises a headend coupled to a distribution network having a multiplicity of subscribers. Standard service signals forming scheduled program channels are coupled commonly with on demand service signals forming on demand program channels in a frequency division multiplexed system. The demand services are provided by a demand service processor having an input processor which stores programs for the demand services in a file server or other massive memory and a plurality of output processors which retrieve the programs on demand and convert them to the demand service signals for application to the distribution network. In the illustrated embodiment the input processor scrambles, digitizes and compresses real time or other stored analog programming for storage in the file server.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: May 20, 1997
    Assignee: Antec Corporation
    Inventors: Richard E. Wunderlich, James O. Farmer
  • Patent number: 5614813
    Abstract: An RMS regulation system for power supplies characterized by a digital loop feedback of a quickly sampled peak crest voltage value of a trapezoidal waveform, whereby a microprocessor controls either the timing of, or rate of, the trapezoidal waveform rise/fall time in order to modulate the crest width of succeeding waveform outputs and provide RMS voltage regulation.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: March 25, 1997
    Assignee: Antec Corporation
    Inventor: J. Gary Batson
  • Patent number: 5426699
    Abstract: An on demand services feature for the provision of video, audio, and data services for a subscription system of the CTV type, or the like. The system comprises a headend coupled to a distribution network having a multiplicity of subscribers. Standard service signals forming scheduled program channels are coupled commonly with on demand service signals forming on demand program channels in a frequency division multiplexed system. The demand services are provided by a demand service processor having an input processor which stores programs for the demand services in a file server or other massive memory and a plurality of output processors which retrieve the programs on demand and convert them to the demand service signals for application to the distribution network. In the illustrated embodiment the input processor scrambles, digitizes and compresses real time or other stored analog programming for storage in the file server.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: June 20, 1995
    Assignee: ANTEC Corporation
    Inventors: Richard E. Wunderlich, James O. Farmer
  • Patent number: 5303295
    Abstract: A program control system for controlling access to premium programming and/or premium channels comprises a program control apparatus which may incorporate one or more subscriber modules. The subscriber modules may use one or more different types of program control technologies to provide different subscribers with different levels of access as well as different levels of security. One subscriber module may comprise a program control apparatus for interdicting premium programming signals transmitted "in the clear". Other modules may comprise positive or negative traps or bandstop filters. The program control apparatus allows a cable television provider to apply new or different program control technologies on a subscriber by subscriber basis.
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: April 12, 1994
    Assignee: Scientific-Atlanta, Inc.
    Inventors: Lamar E. West, Steve Nussrallah
  • Patent number: 5287539
    Abstract: Off premises cable television interdiction apparatus comprises a microprocessor actuation and control means for actuating and controlling at least one frequency agile voltage controlled oscillator. The voltage controlled oscillator selectively jams only unauthorized premium programming transmitted in the clear from a headend to a particular subscriber. The voltage controlled oscillator generates a jamming signal carrier at a frequency 1/N between the video and audio carriers where N is an integer, preferably small. The microprocessor provides a calibration mode and a normal mode of operation. During the normal mode of operation, a frequency hopping rate on the order of four thousand hertz is achievable. the method of interdiction comprises the steps of generating and storing voltage control words for operating the oscillator consistent with a headend selected jamming factor for a particular channel to be jammed and addressably transmitted and stored premium programming authorization data.
    Type: Grant
    Filed: February 21, 1990
    Date of Patent: February 15, 1994
    Assignee: Scientific-Atlanta, Inc.
    Inventor: Lamar E. West, Jr.
  • Patent number: 5282028
    Abstract: A remote control system including a hand held remote control unit with an alphanumeric information display, for controlling and communicating with a first controlled device, such as a digital music tuner connected to a community antenna television (CATV) cable, and for controlling a selected one of a plurality of second controlled devices, such as CATV set-top units, VCRs, or television sets. A first, high speed, error free display information communications protocol is utilized for transmitting program content or other information from a device, such as the CATV-connected music tuner, to the remote control unit for display. A second or control communications protocol is utilized by the remote control unit for controlling the first controlled device and a selected one of the second controlled devices. The CATV cable-connected music tuner utilizes the 44.
    Type: Grant
    Filed: January 8, 1992
    Date of Patent: January 25, 1994
    Assignee: Scientific-Atlanta, Inc.
    Inventors: Lee R. Johnson, Luis A. Rovira, Leo Montreuil, William E. Wall, Jr.
  • Patent number: 5271011
    Abstract: A system and method for disabling the output of a data transmission system when a relatively high error rate is detected in the transmitted signal. The error muting technique of the invention functions as the digital equivalent of a leaky integrator with hysteresis. In particular, the signal quality of the received data transmission is monitored, and a predetermined value is added to an accumulator or error counter when an error is detected. This value varies depending upon the nature of the detected error such that more serious errors are given greater error values. The error counter is also decremented by one or some other amount at a programmable time interval in accordance with the maximum acceptable error rate. The error count (accumulator sum) is continuously compared to a programmable error threshold, and if the threshold is exceeded, the output of the data transmission system is disabled, or in the case of a digital audio transmission system, is muted.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: December 14, 1993
    Assignee: Scientific-Atlanta, Inc.
    Inventors: Jay C. McMullan, Jr., Lee R. Johnson
  • Patent number: 5267071
    Abstract: A system for signal level control in AM fiber systems is provided. The system provides level controls at both transmitter and receiver ends of the fiber transmission system, utilizing compensation and control techniques at each end to maintain and optimize the performance of the system. The transmitter includes two stage level control based on a composite power level of a detected RF signal. The receiver includes two stage level control based on a pilot channel filtered from the channels transmitted to the receiver.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: November 30, 1993
    Assignee: Scientific-Atlanta, Inc.
    Inventors: Frank R. Little, John G. Megna, Heather H. Rand, Frederick T. Zendt
  • Patent number: 5265160
    Abstract: An off-premises method and apparatus for the interdiction of unauthorized channels of a broadband cable television signal includes common circuitry for adjusting the amplitude and equalization levels of the broadband CATV signals and one or more subscriber modules for generating jamming signals of different frequencies which are used to interdict one or more unauthorized channels. Each subscriber module is associated with a subscriber and is programmable and addressable to adjust the jamming parameters of that subscriber independently of other subscribers. Each subscriber module circuit comprises a plurality of latches, each of which is associated with one of a plurality of digital to analog converters. Each of the digital to analog converters drives one or more frequency agile oscillators with its analog output to generate the jamming signals.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: November 23, 1993
    Assignee: Scientific-Atlanta, Inc.
    Inventors: Michael P. Harney, Vibha Rustagi, Himanshu R. Parikh, Mark E. Schutte
  • Patent number: 5262883
    Abstract: A communications network uses optical fibers to carry amplitude modulated broadband CATV signals over a considerable distance (6-30 km) to a fiber node. Electrical to optical transmitters at the headend launch, and optical to electrical receivers at the fiber node receive, optical signals corresponding to the broadband CATV signals. Distribution from the fiber node to the subscribers is obtained by transmitting electrical signals through a limited cascade of amplifiers over an electrical transmission line (coaxial cable). The limited cascade is much shorter than the fiber span and may include trunk amplifiers which are insufficient in number to add significant losses or distortion. Line extender amplifiers may be connected to output couplers located off the subscribers premises and the CATV signals then carried via electrical cables to the subscribers.
    Type: Grant
    Filed: September 15, 1992
    Date of Patent: November 16, 1993
    Assignee: Scientific-Atlanta, Inc.
    Inventor: Rezin Pidgeon
  • Patent number: 5257403
    Abstract: A multiplication circuit for use in an FM television transmitter and receiver is provided. The multiplication circuit includes a limiting circuit for limiting a subcarrier supplied thereto and a dividing circuit coupled to the limiting circuit and dividing the output of the limiting circuit by a predetermined factor. A mixer is coupled to the dividing circuit and mixes the output of the dividing circuit with the subcarrier.
    Type: Grant
    Filed: December 3, 1991
    Date of Patent: October 26, 1993
    Assignee: Scientific-Atlanta, Inc.
    Inventors: Luis A. Rovira, David P. Womble, Allen Walter, Robert Dennison
  • Patent number: 5255086
    Abstract: A method of controlling the allocation of a population of remote units among a plurality of groups of remote units is provided. Each remote unit has a digital identifier respectively associated therewith. A maximum and a minimum average number of remote units per group is fixed. The remote units are assigned to the groups of remote units in accordance with the respective digital identifiers. The average number of remote units per group is then determined as remote units are assigned thereto. Next, the average number of remote units per group is compared to the fixed maximum number of remote units per group. The above steps are repeated while the average number of remote units per group is less than or equal to the fixed maximum number of remote units per group.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: October 19, 1993
    Assignee: Scientific-Atlanta, Inc.
    Inventors: Jay C. McMullan, Jr., David J. Naddor, Robert J. Beyers, II
  • Patent number: 5251324
    Abstract: A method and apparatus for generating and collecting viewing statistics in a cable television system is provided. For example, data relating to television channels being viewed at remote terminals may be generated by each remote terminal and then collected by a system manager. A system manager transmits one or more record times downstream to one or more remote terminals indicating a future point in time at which the terminal is to record the viewing statistics. The remote terminals store the one or more record times in memory and when the record time matches the current real time, the remote terminals store in memory the viewing statistics. Thereafter, in response to a polling signal from the system manager, the set top terminals transmit the previously recorded viewing statistics along with a time code corresponding to the time at which the viewing statistics were recorded upstream to the system manager, and the system manager processes this information accordingly.
    Type: Grant
    Filed: March 19, 1991
    Date of Patent: October 5, 1993
    Assignee: Scientific-Atlanta, Inc.
    Inventor: Jay C. McMullan, Jr.