Fuel quality testing device

Claim 1

A FUSE ASSEMBLY FOR A CONTAMINATION SENSITIVE SHUTOFF DEVICE USED IN CHECKING FUEL CLEANLINESS BY PASSING FUEL THERETHROUGH FROM OUTSIDE SAID FUSE ASSSEMBLY TO INSIDE SAID FUSE ASSEMBLY COMPRISING A TUBE, A FERRULE LOCATED AT ONE END OF SAID TUBE, SAID FERRULE HAVING AN OUTLET PORT THEREIN, RETAINING MEANS LOCATED AT THE OTHER END OF SAID TUBE, WASHER-TYPE CONTAMINATION SENSITIVE MEANS HAVING RADIALLY EXTENDING PORES FOREMED BETWEEN THE WASHERS THEREOF FOR PERMITTING FLOW OF FUEL THERETHROUGH, SAID WASHER-TYPE MEANS HAVING ONE END THEREOF IN ABUTMENT WITH SAID FERRULE AND INCLUDING AT LEAST ONE WASHER FORMED OF A HYGROSCOPIC MATERIAL ADJACENT SAID PORES CAPABLE OF SWELLING UPON CONTACT WITH WATER AND CLOSING OFF SAID PORES TO THEREBY PREVENT FURTHER FLOW THERETHROUGH, ENDCAP MEANS FOR CLOSING OFF THE OTHER END OF SAID CONTAMINATION SENSITIVE MEANS, SPRING MEANS CONFINED WITHIN SAID TUBE BETWEEN SAID RETAINING MEANS AND SAID ENDCAP MEANS FOR MAINTAINING SAID CONTAMINATION SENSITIVE MEANS UNDER COMPRESSION, AND A PLURALITY OF RELATIVELY SMALL INLET PORTS LOCATED AROUND THE PERIPHERY OF SAID TUBE, THE NUMBER AND SIZE OF SAID PORTS BEING SO CONSTRUCTED AS TO INCREASE THE VELOCITY OF FUEL FLOW TO THEREBY DISPERSE ANY RELATIVELY LARGE GLOBULES OF WATER INTO SMALLER GLOBULES PRIOR TO PASSAGE OF SAID FUEL THROUGH SAID WASHERTYPE CONTAMINATION SENSITIVE MEANS, SAID INLET PORTS BEING ARRANGED SO THAT MOST OF THE FUEL PASSING THERETHROUGH MUST PASS ALONG THE SURFACE OF SAID CONTAMINATION SENSITIVE MEANS BEFORE PASSING THROUGH SAID LAST NAMED MEANS.