Tap for compressed or liquefied gases
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Sep 20, 2001
app pub date -
Jan 23, 2001
filing date -
Jan 24, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The tap comprises a body (10) containing a closing member for opening or closing the passage of the gas between an inlet connection piece (12) and an outlet connection piece (14), and also a control valve (20) for controlling the flow of the gas between the inlet connection piece (12) and the outlet connection piece (14) and comprising a piston (28) sliding non-sealingly in a cylindrical receptacle (26) and carrying on one of its faces a closing seal (30) for closing the passage of the gas, and a spring (40) stressing said piston (28) axially in the closing direction of the passage. In order to prevent the valve from becoming resonant, the spring (40) is mounted in an axial cylindrical pocket (38) of the piston (28) and is compressed between the bottom of said pocket (38) and a cylindrical block (42) which is likewise engaged at least partially in said pocket (38), said cylindrical block comprising a seal (44) ensuring leak-tightness relative to the side wall of said pocket (38) during the sliding of the piston (28) relative to said block (42), said block (42) comprising an axial duct (46) closed by means of a filter (48).
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