Abstract: A float-type liquid level gauge assembly is provided for measuring the level of a liquid in a tank. The liquid level gauge includes a gear housing for efficiently coupling the gears and accurately assembling and aligning certain components; a movable pivot arm assembly supporting a float arm assembly; and a gear on the pivot arm assembly coupled with a pinion gear located in the gear housing. The pinion gear has a shaped passageway which accepts a similarly shaped drive shaft. A single piece magnetic cap, which defines a bore correspondingly shaped to accept the shaped drive shaft such that it will not rotate relative to the drive shaft, is installed on the drive shaft. The drive shaft and the magnetic cap each include a positioning feature, such that when the positioning feature of the drive shaft engages the positioning feature of the magnetic cap, the magnetic cap is properly aligned with a magnet in a dial assembly.

Abstract: A liquid level sender assembly constructed to minimize contact distortion and dither. A housing supports a resistive track and a pivot arm is connected to the housing. The pivot arm has a force transmitting member attached which interacts with a boss on a contact carrier which is also pivotably attached to the case. A space is provided in the fit of boss within the force transmitting member which allows the boss to remain in one position when the pivot arm vibrates in small oscillations, but causes the boss to move in response to larger movements of the pivot arm. Contacts on the contact assembly electrically cooperate with the resistive track to provide a variable resistor. The contact carrier receives only force components directed circumferentially about the axis.

Abstract: A float-type liquid level gauge assembly is provided for measuring the level of a liquid in a tank. The liquid level gauge includes a gear housing for efficiently coupling the gears and accurately assembling and aligning certain components; a movable pivot arm assembly supporting a float arm assembly; and a gear on the pivot arm assembly coupled with a pinion gear located in the gear housing. The pinion gear has a shaped passageway which accepts a similarly shaped drive shaft. A single piece magnetic cap, which defines a bore correspondingly shaped to accept the shaped drive shaft such that it will not rotate relative to the drive shaft, is installed on the drive shaft. The drive shaft and the magnetic cap each include a positioning feature, such that when the positioning feature of the drive shaft engages the positioning feature of the magnetic cap, the magnetic cap is properly aligned with a magnet in a dial assembly.

Abstract: A float-type liquid level gauge assembly 20 is provided for measuring the level of a liquid, such as liquefied petroleum gases, in a tank. The liquid level gauge 20 includes a gear housing 50 which provides for an efficient way to couple gears together as well as to accurately assemble and align the components of a liquid level gauge. The liquid level gauge 20 includes a movable pivot arm assembly 70 supporting a float arm assembly 74. A gear on the pivot arm assembly 70 is coupled with a pinion gear 65 located in the gear housing 50. The pinion gear 65 has a shaped passageway 69 which accepts a similarly shaped drive shaft 40 which has a magnet 36 at one end. The magnet 36 extends into a passageway 44 on the lower side 30b of a gauge head 30 so as to be magnetically coupled to a level indicating dial assembly 32 provided on the upper side 30a of the gauge head 30.

Abstract: A float-type liquid level gauge assembly 20 is provided for measuring the level of a liquid, such as liquefied petroleum gases, in a tank. The liquid level gauge 20 includes a gear housing 50 which provides for an efficient way to couple gears together as well as to accurately assemble and align the components of a liquid level gauge. The liquid level gauge 20 includes a movable pivot arm assembly 70 supporting a float arm assembly 74. A gear on the pivot arm assembly 70 is coupled with a pinion gear 65 located in the gear housing 50. The pinion gear 65 has a shaped passageway 69 which accepts a similarly shaped drive shaft 40 which has a magnet 36 at one end. The magnet 36 extends into a passageway 44 on the lower side 30b of a gauge head 30 so as to be magnetically coupled to a level indicating dial assembly 32 provided on the upper side 30a of the gauge head 30.