Patents by Inventor Henry G. Grilk

Henry G. Grilk 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: 4860223
    Abstract: An instrument for use on a marine vehicle including a sensor for determining the concentration of carbon monoxide (COC) present on the vehicle, an LED indicator for visually displaying the concentration, a microprocessor using a mathematical formula for calculating the health hazard to a person on the vehicle occasioned by the level of carbon monoxhemoglobin %COHb in the blood of that person resulting from breathing concentrations of carbon monoxide over a period of time. The instrument also determines for determining the health hazard condition in terms of long term exposure to a low COC level, moderate term exposure to a moderate COC level, and short term exposure to a high COC level, and in addition visually and audibly indicates the health hazard conditions. A method for the operating instrument, and a method of testing operativeness of the instrument are also provided.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: August 22, 1989
    Assignee: Rule Industries, Inc.
    Inventor: Henry G. Grilk
  • Patent number: 4644512
    Abstract: A computer system is proposed for finding and displaying the depth and depth related values of an object in an aquatic environment in which and LCD display is subdivided into segments each representing a fraction of the total depth range in which the system is operating as well as a fraction of the transit time for the transmission of pulses within the depth range. Each segment is addressed and activated in response to the presence of a receiver output in the microprocessor for a given number of consecutive time-scans, thus providing a quasi-analog visual display of depth on the array of the segmented scale.
    Type: Grant
    Filed: February 16, 1984
    Date of Patent: February 17, 1987
    Assignee: Ketcham & McDougall, Inc.
    Inventor: Henry G. Grilk
  • Patent number: D286384
    Type: Grant
    Filed: August 15, 1984
    Date of Patent: October 28, 1986
    Assignee: Aqua Meter Instrument Corporation
    Inventor: Henry G. Grilk
  • Patent number: D305888
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: February 6, 1990
    Assignee: Goldstar Products Co., Ltd.
    Inventors: Ernest M. Bevilacqua, Nathan Ehrlich, Anthony D. Franks, Henry G. Grilk, Wen-Jeng Li, Arthur B. Nichols, IV
  • Patent number: D308646
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: June 19, 1990
    Assignee: Aqua Meter Instrument Corporation
    Inventor: Henry G. Grilk
  • Patent number: D361043
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: August 8, 1995
    Assignee: Datcon Instrument Company, Inc.
    Inventor: Henry G. Grilk
  • Patent number: D378284
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: March 4, 1997
    Assignee: Datcon Instrument Co., Inc.
    Inventors: Henry G. Grilk, David P. Riegel, John A. Roser