Portable apparatus for filling bags with material to a preselected weight
US5121775A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 25, 1991 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Feb 25, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G13/242
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A bag filling apparatus includes a hopper for receiving raw material. The hopper feeds the material through an opening to a conveyor belt for transporting the material to a bagging head. The bagging head includes a gate having two positions for selectively diverting the material to one of a first and a second outlet ports. Underneath the bagging head is a receiving scale having a first pan and a second pan, each adapted to hold a bag for receiving the material, and a movable counterweight. The scale is constructed to move between two positions: a first position wherein the first pan is adjacent the first outlet port and the counterweight is adjacent the second pan and a second position wherein the second pan is adjacent the second outlet port and the counterweight is adjacent the first pan. The movement of receiving scale between the two positions occurs automatically when the sandbag reaches a preselected weight. An actuator mechanism is responsive to the first and second positions to operate the gate so that material is selectively diverted to the outlet port which has a pan adjacent thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.