Amphibious audible alarm device
OwnerFrankie Cheninventor
Life of this patent
Estimating the term…
Abstract
An amphibious audible alarm device for a diver to use with an air tank in the water or above water surface in the event of incident or emergency to get other people's attention. The device includes a valve member connecting with the air tank for controlling compressed air flow, a noise making mechanism includes a piston reciprocally movable within a cylinder because of compressed air and an impact member to receive the impact of the piston to produce audible sound, and a body to house the valve member and the noise making mechanism. The device can work equally well in the water or in the atmosphere. It is compact size, simply structured, easy to carry and use.
Claims9
An amphibious audible alarm device for use with a compressed air tank to produce an audible alarm, comprising;
- a valve means connected to the air tank for controlling air flow;
- a noise making means including a cylinder, a piston reciprocally movable within the cylinder, and an impact member contactable with one end of the piston, said noise making means being capable of receiving said air flow controlled by said valve means to drive said piston to move reciprocally within the cylinder to hit said impact member reciprocally for generating audible sound;
- and
- a body for housing the valve means and the noise making means;
- wherein the valve means includes a button, a valve and a stem, which has one end engaged with the air tank via a connector, the stem further having an internal axial passage and a peripheral air flow path around the outside surface of the stem, the peripheral air flow path is constructed such that when the button is pressed, compressed air flows from the air tank to the peripheral air flow path via the valve and the internal axial passage;
- further wherein the piston is a T-shape member having a radial through bore formed in a front section, and an axial bore formed between the radial bore and a rear end thereof, and the cylinder, which houses the piston therein, has an air channel formed therein for communicating with the peripheral air flow path to receive compressed air into the cylinder for moving the piston reciprocally.
An amphibious audible alarm device for use with a compressed air tank to produce an audible alarm above or below water surface, comprising;
- a tabular stem with an internal axial passage having one end engaged with a connector for connecting with the air tank and a peripheral air flow path around the outside surface of the stem;
- a valve located in the stem for controlling compressed air flow from the internal axial passage to the peripheral air flow path;
- a button located at one end of the valve for actuating the valve to start or stop compressed air flow;
- a piston formed in a T-shape member having a radial through bore in a front portion thereof and an internal axial bore formed between the radial bore and a rear end thereof;
- a cylinder having a cavity to house the piston therein and an air channel fluidly communicating with the peripheral air flow path to receive compressed air from the internal axial passage of the stem, the piston being reciprocally movable within the cylinder resulting from compressed air;
- an impact member secured at a front end of the cylinder by a cap;
- and
- a body for housing the stem, valve, button, piston and cylinder, the cap being screwed to the body with a gap formed therebetween for discharging used compressed air;
- wherein upon pressing the button, compressed air moves the piston reciprocally and hits the impact member to produce audible alarm sound.
Dependencies are inferred from the claim text.