The current Series 20 lubricant pumps, still popular with automotive markets and industrial customers, has changed little since these innovations.

When lubricant pumps were first invented, they were used to pump oil and lightweight greases.

Overtime, lubricant viscosity increased and lubricant pumps were stressed to the limits.

Investigators have said that a lubricating oil pump on the freighter failed as the ship cleared a downtown bridge and proceeded down river.

A preliminary investigation has found that a lubricating oil pump on the freighter failed as the ship cleared a downtown bridge and proceeded downriver and that this malfunction ultimately reduced the engine's power.