Filler nozzle vapor seal and collector

Claim 1

A filler nozzle efflux seal and collector for preventing uncontrolled escape of efflux from a fluent material being transferred from the filler nozzle to a fill pipe into which the nozzle is inserted comprising: A. A circumferentially extending housing having closed side and rear walls and an open front wall, said side walls surrounding said nozzle at the forward end thereof and being radially spaced therefrom at a distance greater than the width of the fill pipe to thereby form an efflux passageway between the interior of said housing and the exterior of said nozzle, said rear wall being connected to said nozzle and supporting said side wall, B. a resilient chamber positioned on the inner surface of said housing at the forward end thereof and surrounding said fill pipe once the nozzle has been inserted therein, said chamber being expansible between the inner surface of the housing and the outer surface of the fill pipe to provide a fluid-tight seal between said fill pipe and said housing to thereby close off the forward end of said efflux passageway, and C. means forming an aperture in the rear wall of said housing whereby efflux passing into said passageway from said fill pipe may be vented therefrom.