Automatic signaling device

Details Automatic signaling device Automatic signaling device

1978-12-20

1981-02-24

Swisher, S. Clement

Signals and indicators

Horns, whistles and compressional wave generators

116266, 116112, B06B 120

Patent

active

042520762

ABSTRACT:
An automatic signaling device responsive to small pressure variation, said pressure variations being created by a restriction of fluid flow within a flow system. The pressure variation causes fluid to flow through a resonant; loading chamber, activating a longitudinal wave resonator. The generation of longitudinal waves is apparent by the production of an audible signal. The device is mounted to the flow system using attaching means designed as part of or appurtenant to the device. In some embodiments the dimensions of the respective components of the device are adjustable.

REFERENCES:
patent: 1530899 (1925-03-01), Limon
patent: 1540023 (1925-06-01), Kollinek

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