Patents by Inventor Peter L. Hutchins

Peter L. Hutchins 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).

  • Patent number: 5059953
    Abstract: A system for detecting an overheat condition in aircraft preferably includes two control units each connected to eight thermal imaging modules. The thermal imaging modules monitor the cargo by for an overheat condition and if any module detects an overheat condition, the control unit verifies the overheat condition and then triggers an alarm. The control units execute routines to monitor and test their operational status and that of each thermal imaging module. The control units are connected to the aircraft electronics to indicate the location of an overheat condition or any malfunctioning control units and thermal imaging modules. The thermal imaging modules are identical to each other and include an infrared detector, a rotating optical assembly, threshold circuitry and a motor. The optical assembly is rotated by the motor to provide the detector with a conical field of view. The optical assembly focuses the radiation in the cargo bay on the infrared detector.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: October 22, 1991
    Assignee: Pacific Scientific Company
    Inventors: Michael L. Parsons, Peter L. Hutchins, Yeong-Jeng V. Tseng
  • Patent number: 4975683
    Abstract: An optical fire detection system that uses cosmic radiation or a radioactive source to test whether the ultraviolet light detector tube operates properly and includes self test logic to independently verify that the detector electronics are functioning properly. A high voltage is applied across the ultraviolet light detector tube to produce pulses of current when radiation is present. A pulse rate discriminator circuit measures the current pulses and outputs a fire signal if the pulse rate is equal to or greater than the pulse rate produced by ultraviolet radiation from a fire. A background count circuit also measures the current pulses from the ultraviolet light detector tube to test whether the ultraviolet light detector tube is operational. At least one current pulse should be detected within a specified time because the detector tube senses cosmic radiation or radiation from the radioactive source.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: December 4, 1990
    Assignee: Pacific Scientific Company
    Inventors: Michael L. Parsons, Peter L. Hutchins, Yeong-Jeng V. Tseng
  • Patent number: 4603255
    Abstract: A fire or explosion detection system is disclosed for reliably discriminating between a hydrocarbon fire in an armored vehicle and other sources of radiant energy including explosion of an armor-piercing ammunition round without an accompanying hydrocarbon fire. Radiation detectors sensitive to radiation at 4.4 microns and 0.9 microns, respectively, each produce logic outputs if the viewed radiation intensity exceeds a predetermined relatively low threshold and, in the case of the 4.4 micron detector, is rising at least a predetermined rate or, in the case of the 0.9 micron detector, is not falling at more than a predetermined rate. The logic outputs are fed to a coincidence gate which produces a fire- or explosion-indicating output only if all of the outputs are received concurrently for at least a predetermined period of time. A third radiation detector, in combination with the 0.
    Type: Grant
    Filed: March 20, 1984
    Date of Patent: July 29, 1986
    Assignee: HTL Industries, Inc.
    Inventors: Richard V. Henry, David N. Ball, Robert L. Farquhar, Vincent M. Rowe, Peter L. Hutchins