Patents Assigned to Zelco Industries
  • Patent number: 4247844
    Abstract: An alarm light includes a lamp, an alarm, and an actuator moveable for actuating the lamp and alarm. The alarm is powered by pressurized gas for vibrating a chamber-sealing disk to emit a shrieking sound. The actuator is located adjacent to the tank and the bulb and includes a passage leading from the outlet to a disk located in the actuator. The outlet is in communication with the passage and gas is capable of flowing through the outlet, the passage, and an entrance to the chamber containing the disk when the valve is open. The disk is caused to vibrate thereby and emit a piercing sound.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: January 27, 1981
    Assignee: Zelco Industries, Inc.
    Inventors: Bronislaw Zapolski, Arthur Eisenkramer, Noel E. Zeller
  • Patent number: D263258
    Type: Grant
    Filed: February 28, 1980
    Date of Patent: March 2, 1982
    Assignee: Zelco Industries, Inc.
    Inventor: Noel E. Zeller