Bubbler display device and method of making same
OwnerJoseph C. Lo Giudiceinventor
Life of this patent
Estimating the term…
Abstract
A display device for generating bubbles, which may be illuminated, passing through a body of fluid, including a sealed translucent hollow glass tube partially filled with fluid of a low boiling point and evacuated of air, a chamber of a diameter less than that of the tube secured to the bottom end of the tube, and a heat source associated with the chamber. In one embodiment of the invention the chamber consists of a mass of agglomerated prismatic particles bonded to the bottom of the tube. In another embodiment of the invention, the chamber consists of a closed glass tube having a heater therein which is open on one end for discharge of bubbles into the sealed tube. The invention also includes the method for making such a bubbler device.
Claims10
A display device for generating a continuous flow of bubbles through a body of liquid, said device comprising, an elongated vertically disposed transparent tube evacuated of air, a translucent glass chamber arranged at the lower end of and within said tube, said chamber being closed at its upper end and open at its lower end, a body of liquid in the tube covering and extending above said chamber, some of said liquid entering the lower end of said chamber, electric heater means within said chamber for heating liquid entering thereinto and discharging gaseous bubbles therefrom into the transparent tube and wire means supporting said heater and chamber within said tube.
In a method for making a bubbler display device comprising the steps of forming a gas chamber having a closed upper end and an open lower end inside the lower end of and in communication with an elongated bubbler tube, providing a heating element within said gas chamber, supporting said chamber and heating element by wires within said tube, filling the elongated tube with liquid of a quantity to immerse said gas chamber and heating element in said liquid and provide a body of said liquid above said gas chamber, providing a space within said tube devoid of liquid, evacuating air from and sealing said tube, and placing the heater element in heating proximity to said gas chamber to gasify said liquid and discharge gaseous bubbles therefrom.
Dependencies are inferred from the claim text.