Pump with pneumatic motor
US6923348B2 · kind B2 · utility
15Cited by
27References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2003 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Nov 29, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F11/026
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pump having a compressed-air-operated reciprocating motor for reciprocating a pump plunger through forward and return strokes. The motor comprises a motor cylinder and a motor piston operable in the cylinder and itself acting as a valve for effecting its return through each return stroke. A fluid dispenser is driven by the plunger between a charge position for charging a dispensing chamber with fluid and a discharge position for discharging fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.