Pump operated by hand or pressurized air
US11781568B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 4, 2022 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Aug 4, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04F5/24
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.