Height adjustment cylinder with non-tapered threaded region
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United States of America Patent
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Issued Date -
Jan 6, 2005
app pub date -
Jun 13, 2003
filing date -
Jun 13, 2003
priority date (Note) -
Abandoned
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Abstract
A height adjustment cylinder for use with a desk chair, where the cylinder is simple, reliable and easily assembled with the chair. The cylinder includes a piston shaft which has a threaded region that is of constant diameter or straight walled, and the threaded region includes a high load helical thread.
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