Patent ID: 7182098

Claim:
A fuel transfer coupling that is adapted to be attached to the inlet pipe of a vehicle's fuel tank, which coupling comprises: a) a base portion which comprises a top surface and a central bore portion having a first end portion and a second end portion, wherein the central bore portion is surrounded by a shrouding enclosure, wherein the shrouding enclosure includes a vapor tube, wherein said shrouding enclosure is in fluid communication with a plurality of holes disposed on said top surface, thus providing fluid communication between said holes and said vapor tube, said base portion further including a circumferential ledge at the tenninus of said second end portion within said base portion, and an adjacent wall portion, and wherein said base portion further comprises a flange disposed about its periphery, said flange including a plurality of holes in its surface; b) a flow control cone having a conically-shaped cone element, said flow control cone including a spring seat, a poppet guide bore, and an outer ring portion including a wall portion, wherein said flow control cone is disposed at the second end portion of said central bore portion with its outer ring in contact with said circumferential ledge, thus forming a circumferential slot between the wall adjacent to said circumferential ledge and said wall portion of said flow control cone; c) a poppet having a top surface, a bottom surface, and a stem, wherein said stem is slidably disposed within said poppet guide bore, said poppet further comprising a vent disc centrally and depressably disposed on said top surface, wherein said vent disc is mechanically biased towards said flat top surface; d) a spring disposed between said spring seat and the bottom surface of said poppet; e) a hollow internal housing having a flat top surface and a skirt portion, said internal housing being disposed about said poppet and wherein the skirt of said internal housing is slidably disposed within said circumferential slot; f) an adapter cover affixed to said base portion, in which is contained said flow control cone, said poppet, said spring, and said internal housing, wherein said adapter cover further includes a substantially cylindrically-shaped outer wall portion and a flange comprising a plurality of holes for fastening said flange of said cover to said flange of said base portion.