Dosing apparatus
US4938271A · kind A · utility
0Cited by
11References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1988 |
| Grant date | Jul 3, 1990 |
| Priority date | — |
| Expiry date | Feb 19, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F11/023
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dosing apparatus for packaging containers comprises a dosing device including a housing, a wall within the housing and reciprocable to draw in and expel a substance through an inlet and an outlet, respectively, of the housing, a rotary stepping motor which drives the wall, and a screw device which converts rotary motion of the motor to linear motion of the wall; and a control programmable to control the speed and stroke angle of the motor. The filled containers may be weighed in turn and the weight data used automatically to make any necessary corrections to the wall stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.