Combination loading and vacuum hopper for piston pump
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United States of America Patent
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N/A
Issued Date -
Mar 2, 2006
app pub date -
Aug 30, 2004
filing date -
Aug 30, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An improved piston-type pump (10) is provided which includes an upstanding, dual-hopper product feeding assembly (22) which increases pump efficiency and lessens required pump floor space. The assembly (22) includes a lower vacuum hopper (42) including a fixed section (46) and a shiftable upper section (48) having a top (52); an upper atmospheric pressure hopper (44) is permanently secured to top (52) and is shiftable with section (48). A passageway (54) is provided between the hoppers (44) and (42). A flow-control valve unit (45) is located adjacent the passageway (54).
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