Patents Represented by Attorney William F. Herbert

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  • Electrically-operated backup alarm
    Patent number: 4603317
    Abstract: An improved electrically-operated backup alarm for use on mobile construction and industrial machinery, including selectable lower and higher loudness levels, automatically adjustable loudness level with respect to varying ambient noise level in which the alarm is operating, high and low frequency compensation to substantially eliminate high and low frequency signal components of the sensed ambient noise, and compensation for responding to transient signal components of the sensed ambient noise.
    Type: Grant
    Filed: November 8, 1982
    Date of Patent: July 29, 1986
    Assignee: Electronic Controls Co.
    Inventors: Samuel H. Gailbreath, Ronald K. Whitaker