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| Number | Title | Issue Date |
| 7658105 | Fuel gauge cap A fuel cap operable to close an opening of a fuel tank. The fuel cap includes an outer shell having a protrusion and a shell locking member. The fuel cap includes a detection mechanism for sensing a level of fuel within the tank. The fuel cap further includes an ass... | 02/09/2010 |
| 7231821 | Vertical liquid level measuring device A system for actuating an indicator in response to a depth change in a liquid that is confined to a container comprises a housing, a float constrained to vertical movement in response to changes in liquid depth in the container, a drive rod arranged to rotate in res... | 06/19/2007 |
| 7188521 | Horizontal liquid level measuring system A liquid level measuring system includes a housing mounted to a container and a flexible coupling connected between the housing and a tubular frame suspended in a container holding a liquid. The flexible coupling maintains the tubular frame in a vertical orientation... | 03/13/2007 |
| 7131213 | Fluid level measuring device A fluid level measuring device, also referred to as a dipstick, for measuring the fluid level in a fluid reservoir or tank, such as an oil pan or transmission reservoir in an internal combustion engine. The fluid level measuring device includes a stationary tube ont... | 11/07/2006 |
| 7059187 | Seamless pressure vessel A seamless marine fuel tank having directly mechanically fastened component parts such as a fuel withdrawal assembly and a direct-sight fuel gauge system. The fuel withdrawal system contains a split-nut fastening device which fastens the system to the tank and allow... | 06/13/2006 |
| 6955083 | Vertical liquid level measuring device A system for actuating an indicator in response to a depth change in a liquid that is confined to a container comprises a housing, a float constrained to vertical movement in response to changes in liquid depth in the container, an actuator connected to the housing ... | 10/18/2005 |
| 6715350 | Automatic tank gauge systems A level sensor mechanism for detecting liquid levels in storage tanks. A conduit is provided having an upper portion and a lower portion. The conduit may be adapted to receive a cable therein, may be substantially rigid and adapted to resist deflection. A sensor ass... | 04/06/2004 |
| 6523404 | Apparatus for measuring a fluid level An apparatus for measuring a fluid level in a tank comprises a housing including a level indicator for displaying a measured fluid level in the tank. A rod extends from the housing and a float is adapted to travel along the rod. A first end of an elongate... | 02/25/2003 |
| 6199428 | Fluid level measuring device A fluid level measuring device for measuring a fluid filling level in a container contains a float disposed in the container and a magnet disposed in the container. The magnet is coupled to the float in terms of movement and, in the event of a change in t... | 03/13/2001 |
| 5743138 | Spirally fluted float A float device is disclosed with an improved external surface having an outwardly concave curvature and a plurality of elongated grooves spirally formed on the concave surface. The concave surface provides improved clearance between the float device and t... | 04/28/1998 |
| 5435181 | Electronic float gauge Disclosed herein is an electronic float gauge for indicating the level of liquid in a tank. A float follows the liquid level and causes a rotor that has magnets on it to rotate. Surrounding the magnets, in a concentric array, are a series of reed switches... | 07/25/1995 |
| 5410913 | Remote indicating liquid level sensor For liquid-level sensing in a tank, the invention provides a tank-mounted first subassembly that is adapted for suspension of a vertical guide from the top of the tank, such that a guided float may coact with an elongate vertical ribbon, to angularly disp... | 05/02/1995 |
| 5148709 | Spiral gauge with integral support tube A gauge (10) is disclosed which provides advantages in accuracy and cost. A head (16) is mounted on a reservoir containing a fluid to be monitored. A cylindrical support tube (28) is secured to the head and extends into the fluid. A head bushing (40) and ... | 09/22/1992 |
| 5142908 | Mounting assembly for fuel level sensor An assembly for mounting a fuel level sensing apparatus within a fuel tank of a vehicle includes a base member, a head member, and an elongated tubular member welded at one end to the base member and welded at the other end to the head member. The mountin... | 09/01/1992 |
| 4991436 | Fuel tank gauge A fuel tank gauge having a pivotal measuring portion that can accurately measure fuel level in a fuel tank of a vehicle not on level terrain and which also may be installed in the tank fill-pipe at an angle with the tank whereby the gauge pivot permits th... | 02/12/1991 |
| 4970896 | Float activated gauge A float activated gauge includes a float, a frame for guiding the vertical movement of the float, and a twisted metal strip coacting with the float to provide a visual indication of the vertical position of the float. The frame is held in position by an e... | 11/20/1990 |
| 4838083 | Float activated gauge A float activated gauge for indicating the level of liquid in a tank utilizes a twisted float following member. The float following member is disposed adjacent to the float and is caused to rotate as the float moves vertically due to a change of the level... | 06/13/1989 |
| 4724706 | Fuel tank gauge There is disclosed a fuel tank gauge of the type having a sensor such as a float for sensing the level of fuel in the tank. The float drives a fuel level indicator. The indicator is visible from the exterior of the tank when the sensor is installed in the... | 02/16/1988 |
| 4129039 | Dual gauge indicating device A dual gauge device for simultaneously indicating the quantity of liquid in a container and the amount of liquid that has been added to the container during a selected period of time irrespective of the amount of liquid withdrawn from the container during... | 12/12/1978 |
