Patents Assigned to Seron Manufacturing Co.
  • Multiple tone whistle
    Patent number: 5251569
    Abstract: A whistle having a whistle body (10) including two distinct resonating chambers (20), each with an opening (34) to the exterior of the whistle body (10) and a mouthpiece (14) in fluid communication with both of the chambers (20). At least one of the chambers (20) is provided with at least one additional opening (36) to the interior thereof.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: October 12, 1993
    Assignee: Seron Manufacturing Co.
    Inventor: Suren V. Seron