Daniel T Gallagher

US Patent:

59459131, Aug 31, 1999

Filed:

May 19, 1997

Appl. No.:

8/858110

Inventors:

Daniel J. Gallagher - Boynton Beach FL

International Classification:

G08B 2100

US Classification:

340618

Abstract:

A liquid level alarm system is activated when liquid in a container falls below a predetermined level. The system contains an alarm located outside the container. The alarm is electrically connected to a switching device. The switching device may have a push-down button located on the top, an "on-off" switch located on the side, or a sliding switch located on the side. When the switch is pushed down, the switching device activates the alarm. In one embodiment, the container has a vertically positioned rod adjacent the switching device. There is a float slidably connected to the rod by a connecting rod and hook. The float rises and falls with the level of the liquid. On the side of the rod opposite the float there is a switch contact which makes contact with the switch when the level of the liquid falls below a predetermined level and the float is no longer supported by the liquid. In another embodiment, a float is positioned on tracks so that the switch will be forced down by the float when the liquid level falls below a predetermined point. The tracks contain slots allowing rollers attached to the float to freely rise and fall with the liquid level while maintaining its position relative to the switch.

US Patent:

59991011, Dec 7, 1999

Filed:

Apr 26, 1999

Appl. No.:

9/296187

Inventors:

Daniel J. Gallagher - Boynton Beach FL

International Classification:

G08B 2100

US Classification:

340618

Abstract:

A liquid level alarm system is activated when liquid in a container falls below a predetermined level. The system contains an alarm located outside the container. The alarm is electrically connected to a switching device. The switching device may have a push-down button located on the top, an "on-off" switch located on the side, or a sliding switch located on the side. When the switch is pushed down, the switching device activates the alarm. The container has a vertically positioned rod adjacent the switching device. There is a float slidably connected to the rod by a connecting rod and hook. The float rises and falls with the level of the liquid. On the side of the rod opposite the float there is a switch contact which makes contact with the switch when the level of the liquid falls below a predetermined level and the float is no longer supported by the liquid. The switching device may be electrically connected to a motor which, when activated, changes a valve in an inlet pipe from the opened position to the closed position.