Pumps – Expansible chamber type – Moving cylinder
Reexamination Certificate
2008-05-19
2011-11-01
Kramer, Devon C (Department: 3746)
Pumps
Expansible chamber type
Moving cylinder
C417S258000, C417S521000
Reexamination Certificate
active
08047818
ABSTRACT:
A multiple-chamber, multiple-stage reciprocal pump for compressing air through a series of up-strokes and down-strokes. The pump includes an upper reciprocal portion and a fixed portion. The fixed portion further includes a base housing with an ambient air inlet cavity and a compressed air outlet cavity formed therein. It further includes an outlet valve body fixed to the base housing with an outlet valve pneumatically coupled to direct high-pressure compressed air into the outlet cavity. The outlet valve body also has an inlet port pneumatically coupled to the inlet cavity, and there are plural cylinders coupled to the outlet valve body, which slideably and sealably engaged with the upper reciprocal portion, thereby enabling the series of up-strokes and down-strokes to compress air.
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Brown Daniel R.
Dan Brown Law Office
Kramer Devon C
Zollinger Nathan
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