Closure valve for a fluid container
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 10, 2002
Grant Date -
Nov 15, 2001
app pub date -
Mar 12, 2001
filing date -
Mar 10, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A closure valve for the filler neck of a vehicle fuel tank includes a plastic ball with a vapor impermeable plate attached to it to form part of its surface. The ball is held between a carrier on the inside and a seal carrier on the outside, the seal carrier being held against the ball by a screw cap, a spring washer and a vapor seal. When the valve is closed the plate, the seal carrier, the vapor seal and ring seals form a relatively impermeable barrier covering the end of the fuel filler pipe and preventing the escape of significant amounts of fuel vapor.
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