Pumps with Improved Drive Shaft/Casing Seals
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United States of America Patent
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-
N/A
Issued Date -
Nov 14, 2013
app pub date -
Feb 19, 2013
filing date -
May 8, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A pump includes a drive shaft linked to a motor. The drive shaft passes through a seal assembly before passing into the pump chamber. The seal includes an outer seal housing that accommodates a lip seal. A portion of the drive shaft that passes through the seal assembly is coated with PTFE to prolong the working life of the seal assembly.
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