Gas tap
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 15, 2000
Grant Date -
N/A
app pub date -
Jan 22, 1998
filing date -
Jan 31, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A gas tap comprising an external operating element and a connecting stem for transmitting the movement of the operating element to the opening and closure member which is arranged in such a way as to be held against the sealing seat under the effect of the pressure of the gas. To make opening against the pressure of the gas easier, the operating element comprises a cylindrical sleeve which has a first screw thread that makes the sleeve move axially when the operating element is turned and a second screw thread of opposite hand to the first screw thread and with different screw pitch so as to alter the effect brought about by the first screw thread.
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