Powder charging apparatus
US5402918A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1993 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Feb 19, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S222/01
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A powder charging apparatus includes a low pressure chamber for accommodating a container to be charged with powder. The low pressure chamber is separable into an upper section and a lower section. A pressure reducer reduces the pressures in the low pressure chamber and the container at the same time. A pressure riser increases the pressure in the low pressure chamber. A powder supplier allows a predetermined quantity of powder to fall into the container under a difference in the pressures between inside and outside the container. The powder supplier includes a hopper having an outlet port. The container has an inlet neck portion engageable with a nozzle secured to the low pressure chamber. The nozzle is connected to the outlet port of the hopper. A buffering member is disposed at a space from the nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.