Weighing device having gates for casting article onto center area of dispersal table, and method of driving gates of weighing device
US7663067B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2007 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Sep 2, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/393
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A first gate opens obliquely downward, and maintains the posture, rendering the slope angle of the bottom surface thereof steeper than that of the bottom surface of the second gate. Thus, the bottom surface of the second gate forms a gentle slope sliding surface, and the bottom surface of the first gate forms a steep slope sliding surface. Then articles drop following the shape of a parabola toward the bottom surface of the first gate on the steep slope side, with momentum gained from sliding down the bottom surface of the second gate on the gentle slope side, and then change the sliding trajectory inward upon bumping into the bottom surface of the first gate. The articles then drop following the shape of a parabola toward the center area of a dispersal table, with momentum gained from sliding down the bottom surface of the first gate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.