GAS CYLINDER
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United States of America Patent
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N/A
Issued Date -
Sep 16, 2010
app pub date -
Mar 12, 2009
filing date -
Mar 12, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A gas cylinder includes a spindle vertically reciprocating along a center shaft, a cylinder installed in the spindle and filled with gas, a piston member sectioning an inside of the cylinder into an upper portion and a lower portion, and a valve member sealing an upper end of the cylinder and controlling flow of the gas filling the inside of the cylinder. The valve member includes a pipe holder sealing an upper end of the cylinder, an open pin inserted in the pipe holder by penetrating the pipe holder, and a sealing member provided at an end portion of the open pin to contact the pipe holder. When the open pin is inclined by a predetermined angle with respect to the center shaft, a gap is formed between the sealing member and the pipe holder so that the flow of the gas is controlled.
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