Pneumatic signaling device for divers
OwnerJames T. Dexter, David A. Hancockinventors
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Abstract
The present invention relates to an all-purpose, pneumatic powered signaling device including a first component capable of transmitting signals above water and a second component capable of transmitting a signal beneath the water. The first component includes a pneumatic air horn and the second component a diaphragm and piston. A button actuator is selectively depressed to create a flow passageway from a source of compressed air to the first and second components. A selector switch is selectively adjustable to allow a stream of compressed air flowing through the passageway to enter either the first or the second component and transmit a signal above or below the water.
Claims17
A pneumatic signaling device operable above and below the surface of the water from a source of compressed gas, comprising:
- continuous signaling means for generating a continuous signal detectable above the surface of the water operated at a first flowrate;
- percussion signaling means for generating an intermittent signal detectable below the surface of the water operated at a second flowrate greater than the first flowrate;
- and
- means for selecting an orifice sized to produce one of the first and second flowrates.
An all-purpose signaling device, comprising:
- a first signaling component operable at a first flowrate;
- a second signaling component operable at a second flowrate;
- a selector switch assembly for selectively creating one of first and second flow passageways sized to permit flow of compressed gas at the first and second flowrates, respectively;
- and
- an actuator which provides the compressed gas to the selector switch, wherein:
- the first flowrate is less than that needed to operate the second signaling component.
A pneumatic signaling device operable by compressed gas, comprising:
- a continuous signaling device operable at a first flowrate of the compressed gas,
- a percussion signaling including a single moving element and operable at a second flowrate of the compressed gas greater than the first flowrate;
- and
- a control device including a moveable member which permits operation of a selected one of the continuous signaling device and the percussion signaling device;
- wherein movement of the moveable member between first and second positions selects between the first and second flowrates required to operate the continuous and the percussion signaling devices, respectively, while positioning the moveable member to a third position establishes the selected one of the first and second flowrates.
Dependencies are inferred from the claim text.