Patent ID: 9133013
Filing Date: 2015-09-15
Classification: B60K,B67D

Abstract:
1. An apparatus for alerting a refueler to the attempted introduction of an incorrect liquid into a tank for storing the liquid, the tank having a filler neck through which the liquid enters the tank, comprising: a ring having a diameter suitable for being disposed around the filler neck of a tank; multiple displaceable mechanical elements disposed around the ring such that the physical elements are displaced when a nozzle is introduced into the filler neck; a switch associated with each of the multiple displaceable mechanical elements, each switch having a state that is changed when the physical element is displaced; an indicator to indicate to a user when a nozzle having a diameter smaller than a specified value is inserted; and a circuit to activate the indicator when at least one of the displaceable mechanical elements is displaced and fewer than all of the displaceable mechanical elements are displaced.