Fluid meters and pumps
US5567876A · kind A · utility
2Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1994 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Nov 21, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F3/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A volumetric water meter of the type having an eccentric piston oscillating in a cylindrical chamber has a drive peg (64) on the piston engaging a rotor arm (50) which rotates about the chamber axis to drive an external register or the like. The drive peg is offset from the piston axis by that amount necessary to compensate for the periodic variation in angular velocity of the piston. The likelihood of the peg becoming disengaged from the rotor arm is thus considerably reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.