Patent ID: 8998170
Filing Date: 2015-04-07
Classification: F16L

Abstract:
1. An adapter for a capless fuel tank filler neck of a motor vehicle by which fuel is delivered to a fuel tank of the motor vehicle, where the fuel tank filler neck has an open fuel mouth through which the fuel flows to the fuel tank, and where the fuel tank filler neck also has a closure positioned thereacross to block access to the fuel tank, said adapter to be removably attached to the fuel tank filler neck by which to couple a source of pressure or a source of vacuum to the fuel tank so that the fuel tank can be tested for leaks, said adapter comprising a hollow flow body including first and opposite ends, the first end of said flow body having a set of screw threads and the opposite end of said flow body being inserted into the open fuel mouth and extending through the filler neck when said adapter is attached to the filler neck, the opposite end of said flow body having a length sufficient to engage and displace the closure positioned across the filler neck so as to permit access to the fuel tank, said adapter also comprising a seal surrounding said flow body such that said seal lies between said flow body and the fuel mouth of the fuel tank filler neck when said flow body is inserted into the fuel mouth, said seal being responsive to a force applied thereto whereby to cause said seal to be deformed and thereby move into air-tight sealing engagement with the fuel mouth of the fuel tank filler neck while the fuel tank is being tested for leaks.