Ooooogogg

Claim 1

IN A TESTING DEVICE, IN COMBINATION, AN ELONGATED TESTING TUBE OF METAL ADAPTED TO WITHSTAND HIGH PRESSURES AND TO HOLD A FLUID WHOSE SEALING CHARACTERISTICS ARE TO BE DETERMINED, A PLURALITY OF STANDARDS PIVOTED TO THE TUBE INTERMEDIATE ITS ENDS FOR SUPPORTING THE TUBE IN A VERTICAL POSITION WHEN THE STANDARDS ARE EXPANDED, A CAP MEMBER FOR CLOSING THE TOP END OF THE TUBE, A COUPLING FOR RELEASABLY SECURING THE CAP MEMBER TO THE TUBE TO PROVIDE A LIQUID-TIGHT JOINT, A CYLINDER ADAPTED TO BE RELEASABLY SECURED TO THE LOWER END OF THE TESTING TUBE, A SECOND COUPLING FOR RELEASABLY SECURING THE CYLINDER TO THE TUBE TO PROVIDE A LIQUID-TIGHT JOINT, A CONTAINER HAVING A PERFORATED BOTTOM WALL, SAID CONTAINER BEING ADAPTED FOR INSERTION WITHIN THE CYLINDER TO CLOSE THE LOWER END OF THE TUBE, SAID CONTAINER BEING ADAPTED TO RECEIVE MATERIAL FORMING A FILTER BED FOR THE FLUID TO BE TESTED, A RETAINING PLUG HAVING THREADED CONNECTION WITH THE CYLINDER TO RELEASABLY LOCK THE CONTAINER WITHIN THE CYLINDER, A PRESSURE SUPPLY LINE IN COMMUNICATING RELATION WITH THE UPPER PORTION OF THE TESTING TUBE, AND MEANS FOR VENTING THE TUBE LOCATION ADJACENT THE UPPER PORTION THEREOF.