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US 2003/0121466 A1Published application
Underwater signalling devices
OwnerPeter Katzinventor
Life of this patent
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OwnerPeter Katzinventor
Estimating the term…
A signalling device (10) adapted to make a percussive sound, for example, under water. The signalling device (10) may be attached to a pressurised fluid source, such as a diver's compressed air supply, the device (10) including: a housing (12) having a passageway (22), at least in part, for communication with the fluid source; a valve member (34) located in the passageway (22) and movable between a closed position in which it substantially blocks the passageway (22), and an open position in which fluid may flow through the passageway (22); biasing means (42), such as a spring, biasing the valve member (34) towards the closed position, wherein the valve member (34) reciprocates between the open and closed positions when a pressure difference above a set value exists on either of the valve member (34) to produce a perscussive sound.
A signalling device for attachment to a pressurised fluid source, said device including:
A device according to any one of the preceding claims, wherein the valve member is oriented axially within the passageway and contacts a portion of the housing when in the open position.
A device according to anyone of the preceding claims, including a percussive member biased by a second biasing means towards the valve member.
A device according to anyone of the preceding claims, wherein the device includes control means for controlling the flow of fluid along the passageway from the pressurised fluid source.
A device according to anyone of the preceding claims, wherein the valve member is in communication with the immediate environment surrounding the signalling device.
A device according to any one of the preceding claims, wherein the device is for use under water.
Dependencies are inferred from the claim text.