Patents by Inventor Mark T. Kern

Mark T. Kern 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: 20200139111
    Abstract: Radiopaque markers represent that a lead is suitable for a particular medical procedure such as a magnetic resonance image scan and are added to the lead or related device. The markers may be added after implantation of the lead in various ways including suturing, gluing, crimping, or clamping a radiopaque tag to the lead or to the device. The markers may be added by placing a radiopaque coil about the lead, and the radiopaque coil may radially contract against the lead to obtain a fixed position. The markers may be added by placing a polymer structure onto the lead where the polymer structure includes a radiopaque marker within it. The polymer structure may include a cylindrical aperture that contracts against the lead to fix the position of the polymer structure. The polymer structure may form a lead anchor that includes suture wings that can be sutured to the lead.
    Type: Application
    Filed: December 19, 2019
    Publication date: May 7, 2020
    Inventors: James M. Olsen, Michael R. Klardie, Richard T. Stone, Chad Q. Cai, Spencer Fodness-Bondhus, Mark J. Conroy, Timothy R. Abraham, Bruce R. Mehdizadeh, Michael J. Kern, Jay K. Lahti
  • Patent number: 10556105
    Abstract: A shield located within an implantable medical lead may be terminated in various ways. The shield may be terminated by butt, scarf, lap, or other joints between insulation layers surrounding the lead and an insulation extension. For lap joints, a portion of an outer insulation layer may be removed and a replacement outer insulation layer is positioned in place of the removed outer insulation layer, where the replacement layer extends beyond an inner insulation layer and the shield. The replacement layer may also lap onto a portion of the insulation extension. Barbs may be located between the replacement layer and the inner insulation layer or the insulation extension. The shield wires have ends at the termination point that may be folded over individually or may be capped with a ring located within one of the insulation layers of the jacket.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: February 11, 2020
    Assignee: MEDTRONIC, INC.
    Inventors: Michael J. Kern, James M. Olsen, Michael R. Klardie, Richard T. Stone, Chad Q. Cai, Spencer Fodness-Bondhus, Mark J. Conroy, Timothy R. Abraham, Brian T. Stolz
  • Patent number: 10525263
    Abstract: Radiopaque markers represent that a lead is suitable for a particular medical procedure such as a magnetic resonance image scan and are added to the lead or related device. The markers may be added after implantation of the lead in various ways including suturing, gluing, crimping, or clamping a radiopaque tag to the lead or to the device. The markers may be added by placing a radiopaque coil about the lead, and the radiopaque coil may radially contract against the lead to obtain a fixed position. The markers may be added by placing a polymer structure onto the lead where the polymer structure includes a radiopaque marker within it. The polymer structure may include a cylindrical aperture that contracts against the lead to fix the position of the polymer structure. The polymer structure may form a lead anchor that includes suture wings that can be sutured to the lead.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: January 7, 2020
    Assignee: MEDTRONIC, INC.
    Inventors: James M. Olsen, Michael R. Klardie, Richard T. Stone, Chad Q. Cai, Spencer Fodness-Bondhus, Mark J. Conroy, Timothy R. Abraham, Bruce R. Mehdizadeh, Michael J. Kern, Jay K. Lahti
  • Publication number: 20190160280
    Abstract: A shield located within an implantable medical lead may be terminated in various ways at a metal connector. The shield may be terminated by various joints including butt, scarf, lap, or other joints between insulation layers surrounding the lead and an insulation extension. The shield may terminate with a physical and electrical connection to a single metal connector. The shield may terminate with a physical and electrical connection by passing between an overlapping pair of inner and outer metal connectors. The metal connectors may include features such as teeth or threads that penetrate the insulation layers of the lead. The shield may terminate with a physical and electrical connection by exiting a jacket of a lead adjacent to a metal connector and lapping onto the metal connector.
    Type: Application
    Filed: January 31, 2019
    Publication date: May 30, 2019
    Inventors: Bruce R. Mehdizadeh, Brian T. Stolz, Michael Robert Klardie, James M. Olsen, Michael J. Kern, Richard T. Stone, Chad Q. Cai, Spencer Fodness-Bondhus, Mark J. Conroy, Timothy R. Abraham
  • Patent number: 10184831
    Abstract: A method for calibrating a test light to simulate a fire includes measuring a baseline resistance induced in a sensor cell of a two-color detector in response to a controlled fire. The method includes monitoring a test resistance induced in the sensor cell in response to exposure to emissions from a test light and adjusting the emissions of the test light until the test resistance of the sensor cell equals the baseline resistance of the sensor cell to achieve a calibration setting for the test light. A test light for a detector includes a housing and a first LED within the housing having a first emission wavelength. A second LED is within the housing. The second LED has a second emission wavelength. The second emission wavelength is different than the first emission wavelength.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: January 22, 2019
    Assignee: Kidde Technologies, Inc.
    Inventors: Mark T. Kern, Ken Bell, Terry Simpson, Christopher Wilson, David Frasure, Charles B. McLean, Clinton E. Piland
  • Publication number: 20170205286
    Abstract: A method for calibrating a test light to simulate a fire includes measuring a baseline resistance induced in a sensor cell of a two-color detector in response to a controlled fire. The method includes monitoring a test resistance induced in the sensor cell in response to exposure to emissions from a test light and adjusting the emissions of the test light until the test resistance of the sensor cell equals the baseline resistance of the sensor cell to achieve a calibration setting for the test light. A test light for a detector includes a housing and a first LED within the housing having a first emission wavelength. A second LED is within the housing. The second LED has a second emission wavelength. The second emission wavelength is different than the first emission wavelength.
    Type: Application
    Filed: January 20, 2016
    Publication date: July 20, 2017
    Inventors: Mark T. Kern, Ken Bell, Terry Simpson, Christopher Wilson, David Frasure, Charles B. McLean, Clinton E. Piland
  • Patent number: 9415882
    Abstract: An overheat sensor system is provided. A controller may create an aircraft temperature profile and may compare temperature sensor data to the profile. The system may provide an output indicating temperatures or fires.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: August 16, 2016
    Assignee: Kidde Technologies, Inc.
    Inventors: Mark T. Kern, Ken Bell, Aaron Stanley Rogers
  • Publication number: 20150336681
    Abstract: An overheat sensor system is provided. A controller may create an aircraft temperature profile and may compare temperature sensor data to the profile. The system may provide an output indicating temperatures or fires.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 26, 2015
    Applicant: Kidde Technologies, Inc.
    Inventors: Mark T. Kern, Ken Bell, Aaron Stanley Rogers
  • Patent number: 6222111
    Abstract: A thermopile radiation detector (10) has an optical filter layer (16) that supports a thermopile detector (22) and, in addition, filters undesired wavelengths. The filtering is accomplished by selectively absorbing electromagnetic radiation at predetermined wavelengths. The use of the thermopile radiation detector simplifies the overall construction of a system that incorporates the detector by eliminating one focal point in the optical system. By altering the filter material, the number of layers of filter material, etc., a plurality of detectors can be constructed, each responsive to a different wavelength. In forming the detector, the filter can be deposited on a thin backing material such as aluminum. Examples of suitable filter materials include alternating layers of zinc selenide/magnesium fluoride or germanium/magnesium fluoride. After the filter is deposited, the backing is etched away and suitable thermocouples, such as bismuth/antimony, are deposited on one side of the filter.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 24, 2001
    Assignee: Raytheon Company
    Inventor: Mark T. Kern
  • Patent number: 5064271
    Abstract: A fiber optic fire and overheat sensor system 10 includes a fiber optic cable 12 having a lens 14 at a distal to direct radiation from a fire 16 into the cable 12 and to a radiation detector 18 disposed at a proximal end of the cable 12. Detector 18 is coupled to a fire sensor 19. The detector 18 is sensitive to two wavelength bands including a short wavelength band of approximately 0.8 to approximately 1.1 microns and a long-wavelength band of approximately 1.8 to approximately 2.1 microns. A controller 21, such as a microprocessor, analyzes the fire sensor 19 output signals which correspond to the two spectral bands to determine if a fire is present. The system 10 further includes a body of fluorescent material 20 disposed at the distal end of the cable 12. The material 20 can be interposed between a reflecting surface, such as a mirror 22, and a lens, such as a collimating lens 24. A fiber optic coupler 26 and 26a launches radiation from a source 28, such as a laser diode, into the fiber optic cable 12.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: November 12, 1991
    Assignee: Santa Barbara Research Center
    Inventors: Mark T. Kern, John M. Wetzork, Kenneth A. Shamordola, Gregory L. Tangonan
  • Patent number: 5051595
    Abstract: A fiber optic fire detection and temperature measurement system 10 includes a fiber optic cable 12 having a lens 14 at a distal to direct radiation from a fire 16 into the cable 12 and to radiation detector 18 disposed at a proximal end of the cable 12. Detector 18 is coupled to a fire sensor 20. Detector 18 is sensitive to three wavelength bands including a short wavelength band of approximately 0.8 to 1.1 microns, a mid-wavelength band of approximately 1.3 to 1.5 microns and a long-wavelength band of approximately 1.8 to 2.1 microns. A controller 22, analyzes the fire sensor 20 output signals which correspond to the two spectral bands to determine if a fire is present. The fiber optic conductor is doped with a material selected for its temperature dependent fluorescent emission characteristics. Radiation from a fire passes via cable 12 to the detector 18. A pulse of radiation from source 28 passes from a coupler 26 and 26a to the cable 12.
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: September 24, 1991
    Assignee: Santa Barbara Research Center
    Inventors: Mark T. Kern, Kenneth A. Shamordola, Gregory L. Tangonan, John M. Wetzork
  • Patent number: 5051590
    Abstract: A fiber optic fire detection and temperature measurement system 10 includes a fiber optic cable 12 having a lens 14 at a distal to direct radiation from a fire 16 into the cable 12 and to a radiation detector 18 disposed at a proximal end of the cable 12. Detector 18 is coupled to a fire sensor 20. The detector 18 is sensitive to three wavelength bands including a short wavelength band of approximately 0.8 to 1.1 microns and a long-wavelength band of approximately 1.8 to 2.1 microns. A controller 22, analyzes the fire sensor 20 output signals which correspond to the two spectral bands to determine if a fire is present. The fiber optic conductor of cable 12 includes an optical filter 32 having a temperature dependent radiation transmission characteristic. Radiation from a fire passes via cable 12 to the detector 18.
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: September 24, 1991
    Assignee: Santa Barbara Research Center
    Inventors: Mark T. Kern, Kenneth A. Shamordola, Gregory L. Tangonan, John M. Wetzork
  • Patent number: 5038866
    Abstract: An apparatus for the discharge of powder by a fluidic propellant is suitable for use as a fire extinguisher, the apparatus including a container wherein powder and propellant is pressurized prior to use of the apparatus. Discharge of the powder and the propellant from the container is accomplished by means of a diaphragm in a wall of the container, there being a gas generator contained within a well of the container for providing an overpressure which, in combination with the pressure to which the propellant has been charged, fractures the diaphragm. Thereupon, the propellant and the powder exits the container in a homogeneous stream. The overpressure is less than approximately 30 percent, preferably 20 percent of the pressure to which the propellant and the powder are subjected during a charging of the container with the powder and the propellant. The charge pressure is in the range of 400-600 p.s.i. so as to be many times greater than the pressure of an environment external to the container.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: August 13, 1991
    Assignee: Santa Barbara Research Center
    Inventors: Mark T. Kern, Richard C. Heath, John Streater
  • Patent number: 4864146
    Abstract: A method and improved apparatus for generating and transmitting the distinguishing radiation characteristics of a fire, an ignition and fire, or an ignition without a fire, to a fire sensing system under test are disclosed. Varying radiant energy attributes of a fire, and in particular a hydrocarbon fire such as might be encountered in a vehicle fuel or engine compartment are safely generated by a blackbody transmitter 100, an ultraviolet transmitter 200 and an ignition flash transmitter 300, having appropriate radiation sources. The radiation sources may be conveniently assembled into a palm-sized radiation "head" 101. The transmitters may be selected sequentially to test installed fire sensing systems in aircraft or vehicles or during manufacture where the environment does not permit the use of an actual fire.
    Type: Grant
    Filed: July 23, 1987
    Date of Patent: September 5, 1989
    Assignee: Santa Barbara Research Center
    Inventors: Steven E. Hodges, Mark T. Kern
  • Patent number: 4785292
    Abstract: Apparatus for sensing the ex(i)stence of a fire and providing a warning, if desired, with improved discrimination against the possibility of false alarms. Dual channel detectors are used, one detector being set to respond to incident radiation having a wavelength in the range of 0.8 to 1.1 microns while the other wavelength range is significantly displaced therefrom, being selected for wavelengths in the range from 14 to 25 microns. Reliability of true signal detection is further improved by the provision of separate flame flicker bandpass filters in the respective channels, these bandpass filters being set for different passbands. Circuits providing ratio discrimination, threshold detectors and delay circuitry are combined with the dual spectrum detectors and disparate flicker frequency filters to achieve improved performance.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: November 15, 1988
    Assignee: Santa Barbara Research Center
    Inventors: Mark T. Kern, Kenneth A. Shamordola
  • Patent number: 4769775
    Abstract: A fire sensor can perform a sophisticated analysis of the outputs of radiant energy detectors, while minimizing size, weight, and cost, by employing a microprocessor to analyze the detector outputs. In a preferred embodiment, an Intel 2920 Signal Processor is utilized as the microprocessor.
    Type: Grant
    Filed: May 21, 1981
    Date of Patent: September 6, 1988
    Assignee: Santa Barbara Research Center
    Inventors: Mark T. Kern, Robert J. Cinzori
  • Patent number: 4701624
    Abstract: A fire sensing system utilizing fiber optics to extend the physical range of radiation sensing elements into areas and environments which are physically inaccessible to, and/or destructive of, such sensors and their associated electronic circuitry. The fiber optics are combined with signal processing circuitry to achieve reliable fire sensing systems which present particular advantages in special applications.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: October 20, 1987
    Assignee: Santa Barbara Research Center
    Inventors: Mark T. Kern, Steven E. Hodges, Danny G. Snider, Kenneth A. Shamordola
  • Patent number: 4691196
    Abstract: Apparatus for sensing the existence of a fire and providing a warning, if desired, with improved discrimination against the possibility of false alarms. Dual channel detectors are used, one detector being set to respond to incident radiation having a wavelength in the range of 0.8 to 1.1 microns while the other wavelength range is significantly displaced therefrom, being selected for wavelengths in the range from 14 to 25 microns. Reliability of true signal detection is further improved by the provision of separate flame flicker bandpass filters in the respective channels, these bandpass filters being set for different passbands. Circuits providing ratio discrimination, threshold detectors and delay circuitry are combined with the dual spectrum detectors and disparate flicker frequency filters to achieve improved performance.
    Type: Grant
    Filed: March 23, 1984
    Date of Patent: September 1, 1987
    Assignee: Santa Barbara Research Center
    Inventors: Mark T. Kern, Kenneth A. Shamordola
  • Patent number: 4679156
    Abstract: A fire sensor that can perform a sophisticated analysis of the outputs of radiant energy detectors, while minimizing size, weight, and cost, by employing a microprocessor to analyze the detector outputs. In one embodiment, an Intel 2920 Signal Processor is utilized as the microprocessor. An alternative embodiment incorporates an RCA 1802 microprocessor to achieve fire sensing while discriminating against false signal radiation.
    Type: Grant
    Filed: August 16, 1984
    Date of Patent: July 7, 1987
    Assignee: Santa Barbara Research Center
    Inventors: Mark T. Kern, Robert J. Cinzori
  • Patent number: 4665390
    Abstract: Circuitry for using the statistical properties of detected radiation in the time domain to discriminate between stimuli from fire and non-fire sources. Statistical discriminators for fire sensing may be combined with other types of sensors operating in the frequency domain for developing improved sensitivity with better security against false alarms. Such other types of sensors may include peak detectors, zero crossing detectors, second derivative-equal-to-zero detectors, for example. The invention determines the mean or average, the variance or standard deviation, the mean deviation, and the Kurtosis of sampled data in statistical analysis to discriminate between fires and non-fires.
    Type: Grant
    Filed: August 22, 1985
    Date of Patent: May 12, 1987
    Assignee: Hughes Aircraft Company
    Inventors: Mark T. Kern, Kenneth A. Shamordola