Paint sprayer pump cartridge
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United States of America Patent
Stats
-
Oct 27, 2020
Grant Date -
Oct 12, 2017
app pub date -
Apr 11, 2017
filing date -
Apr 11, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A fluid dispensing system includes a motor housing and a piston pump assembly connected to the motor housing. A motor is mounted within the motor housing. The piston pump assembly includes a pump housing, a cartridge having a first end that extends into a second end of the pump housing, a piston that extends into a first end of the pump housing and the first end of the cartridge, and a packing stack within the cartridge and adjacent an inner surface of the cartridge and through which the piston extends. The cartridge is configured to be removed from the pump housing, and removal of the cartridge removes the packing stack from within the pump housing while leaving the pump housing connected to the motor housing.
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