Piston seal guide bearing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 8, 2013
Grant Date -
May 12, 2011
app pub date -
Sep 2, 2008
filing date -
Aug 30, 2007
priority date (Note) -
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Abstract
A priming piston reciprocating pump 10 has piston guide 14 which encircles piston 16 and is provided a bearing member 22 in the inner diameter of the upper end of the guide 14. The bearing 22 is formed of 25% carbon-filled PTFE and may be fitted without tools into the aforementioned ID. Such a bearing 22 allows a negligible clearance to be utilized between the bearing 22 and the piston 16.
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