发明名称 |
BELLOWS PLUNGERS HAVING ONE OR MORE HELICALLY EXTENDING FEATURES, PUMPS INCLUDING SUCH BELLOWS PLUNGERS AND RELATED METHODS |
摘要 |
<p>A pump system includes at least one pressure chamber at least partially defined by a helical bellows plunger comprised of a tubular body, a closed front portion, an open rear portion, and at least one contour extending continuously as a helix, longitudinally from proximate the front portion to proximate the rear portion. Methods for forming a helical bellows plunger include molding the helical bellows plunger using a mold core comprising a helically extending exterior contour and a cooperatively associated mold cavity comprising a helically extending interior contour of substantially a same pitch and configured to align with the helically extending exterior contour of the mold core, introducing a molding material therebetween, curing the molding material, and unscrewing the cured molding material from the mold core. Various configurations of helical bellows plungers are also disclosed.</p> |
申请公布号 |
WO2010081008(A9) |
申请公布日期 |
2010.10.28 |
申请号 |
WO2010US20509 |
申请日期 |
2010.01.08 |
申请人 |
SIMMONS, TOM, M.;SIMMONS, JOHN, M.;SIMMONS, DAVID, M. |
发明人 |
SIMMONS, TOM, M.;SIMMONS, JOHN, M.;SIMMONS, DAVID, M. |
分类号 |
F04B43/00;F04B9/135;F04B43/073;F04B43/113 |
主分类号 |
F04B43/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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