Fuel level indicator

Claim 1

IN COMBINATION, A VESSEL ADAPTED TO CONTAIN FUEL, AN OPENING IN THE EXTERIOR OF SAID VESSEL FOR RECEIVING AN OPTICAL FUEL LEVEL INDICATOR THEREIN, SUCH INDICATOR COMPRISING: A TRANSPARENT MEMBER ADAPTED TO REFRACT LIGHT RAYS IMPINGING THEREUPON, SAID MEMBER INCLUDING: AN ENLARGED ANNULAR PORTION, AND A BODY PORTION HAVING A PLURALITY OF INCLINED PERIPHERAL SURFACES EXTENDING INWARDLY FROM SAID ANNULAR PORTION AND CONVERGING AT A TIP SEGMENT, SAID BODY PORTION FORMING A HEXAGON WHEN VIEWED IN A PLANE PARALLEL TO SAID ANNULAR PORTION, MOUNTING MEANS FOR SECURING SAID TRANSPARENT MEMBER IN OPERATIVE POSITION WITHIN THE OPENING IN SAID VESSEL, SAID MOUNTING MEANS INCLUDING: SOCKET MEANS FOR ENGAGING THE ANNULAR PORTION OF SAID TRANSPARENT MEMBER, AND A HOUSING EXTENDING INWARDLY FROM SAID SOCKET MEANS, SAID HOUSING HAVING APERTURES TO PERMIT FUEL TO PASS THERETHROUGH, AND A FULL COLORED INDICATOR PLATE SECURE TO A WALL OF SAID HOUSING AT A POINT SPACED FROM THE TIP OF SAID TRANSPARENT MEMBER, WHEREBY THE AMOUNT OF COLOR REFLECTED FROM THE INDICATOR PLATE IS DIRECTLY RELATED TO THE LEVEL OF FUEL CONTAINED WITHIN THE VESSEL.