Patent ID: 8047818
Filing Date: 2011-11-01
Classification: F04B

Abstract:
1. A multiple-chamber, multiple-stage reciprocal pump for compressing air through a series of up-strokes and down-strokes, comprising: an upper reciprocal portion; a fixed portion further comprising; a base housing with an ambient air inlet cavity and a compressed air outlet cavity formed therein; an outlet valve body threadably engaged with said base housing, said outlet valve body having an outlet valve which is pneumatically coupled to direct high-pressure compressed air into said outlet cavity, said outlet valve body also having an inlet port to receive inlet air from said inlet cavity, and wherein said inlet cavity and said inlet port are pneumatically coupled by an annular cavity defined between said base housing and said outlet valve body when threadably engaged together, and wherein said annular cavity is disposed about said outlet valve, and plural cylinders coupled to said outlet valve body, and slideably and sealably engaged with said upper reciprocal portion, thereby enabling the series of up-strokes and down-strokes to compress air.