Pump operated by hand or pressurized air
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United States of America Patent
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Oct 10, 2023
Grant Date -
Nov 24, 2022
app pub date -
Aug 4, 2022
filing date -
Aug 4, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A pump includes a cylinder having a suction pipe; and inlet section including a housing, a lower threaded section, an upper nut secured to an upper threaded section, and an inlet having a first connector connected to a valve, a second connector having a connection element connected to the valve, a hollow projection opposite to the connection element and provided through the housing, and an axial hole through the hollow projection; a joining section secured to the cylinder and including a hollow first threaded section and a hollow first internally threaded section secured to a second externally threaded section; a manual operation section including a piston rod extending downward from a spring biased handle into the cylinder; an outlet section; and a safety valve. The safety valve releases pressurized air when the pressurized air reaches a pressure of 0.5 kgf/cm2 at the safety valve.
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