Liquid level gauge
AssigneeAmerican Tank Gauge, Inc.
InventorJerry Morris
Life of this patent
Estimating the term…
Abstract
A liquid level gauge has a scale, a first float, a second float, a first level indicator, and a second level indicator. The scale is positioned on a sidewall of a storage tank containing two liquids. The first float is positioned in the tank and weighted to maintain buoyancy on the surface of a first liquid. The second float positioned in the tank and weighted to maintain buoyancy on the surface of a second liquid. The first level indicator is suspended adjacent the scale and connected to the first float to be responsive to changes in the level of the surface of the first liquid. The second level indicator is suspended in the level indicator cover vertically below the first level indicator and connected to the second float to be responsive to changes in the level of the surface of the second liquid.
Claims15
A liquid level gauge in combination with a storage tank containing a first liquid and a second liquid separated from the first liquid, the storage tank having a sidewall with an exterior surface, the liquid level gauge comprising:
- a scale positioned on the exterior surface of the sidewall of the storage tank, the scale having a plurality of markings extending from a lower end of the scale to an upper end of the scale;
- a first float positioned in the tank and weighted to maintain buoyancy on the surface of the first liquid;
- a second float positioned in the tank and weighted to maintain buoyancy on the surface of the second liquid;
- a first level indicator suspended adjacent the scale and connected to the first float to be responsive to changes in the level of the surface of the first liquid and thereby provide a visual indicator of the level of the first liquid in the tank;
- and
- a second level indicator suspended below and vertically aligned with the first level indicator adjacent the scale and connected to the second float so as to be responsive to changes in the level of the surface of the second liquid and thereby provide a visual indicator of the level of the second liquid in the tank.
A liquid level gauge in combination with a storage tank containing a first liquid and a second liquid separated from the first liquid, the storage tank having a sidewall with an exterior surface, the liquid level gauge comprising:
- a panel member positioned on the exterior surface of the sidewall of the storage tank;
- a level indicator cover positioned on the panel member to be vertically oriented;
- a first float positioned in the tank and weighted to maintain buoyancy on the surface of the first liquid;
- a second float positioned in the tank and weighted to maintain buoyancy on the surface of the second liquid;
- a first level indicator suspended in the level indicator cover and connected to the first float to be responsive to changes in the level of the surface of the first liquid and thereby provide a visual indicator of the level of the first liquid in the tank;
- and
- a second level indicator suspended in the level indicator cover below and vertically aligned with the first level indicator and connected to the second float to be responsive to changes in the level of the surface of the second liquid and thereby provide a visual indicator of the level of the second liquid in the tank.
A method for installing a liquid level gauge in a storage tank containing at least a first liquid and a second liquid, the storage tank having a sidewall with an exterior surface, the method comprising the steps of:
- positioning a scale on the exterior surface of the sidewall of the storage tank, the scale having a plurality of markings extending from a lower end of the scale to an upper end of the scale;
- positioning a first float in the storage tank, the first float being weighted to maintain buoyancy on the surface of the first liquid;
- positioning a second float in the storage tank, the second float being weighted to maintain buoyancy on the surface of the second liquid;
- connecting a first level indicator to the first float so the first level indicator is suspended adjacent the scale to be responsive to changes in the level of the surface of the first liquid and thereby provide a visual indicator of the level of the first liquid in the storage tank;
- and
- connecting a second level indicator to the second float so the second level indicator is suspended below and vertically aligned with the first level indicator to be responsive to changes in the level of the surface of the second liquid and thereby provide a visual indicator of the level of the second liquid in the storage tank.
Dependencies are inferred from the claim text.