Powder delivery system
US4824295A · kind A · utility
59Cited by
9References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1986 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Mar 19, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B7/1477
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for pumping a steady flow of powder from a powder spray gun of a powder spray system by pumping the powder from a fluidized bed feed hopper to the spray gun via a small auxiliary fluidized bed hopper located in close proximity to the powder spray gun. The apparatus comprises a primary fluidized bed hopper into which reclaimed powder is supplied from a powder spray booth via a powder filter module and a sieve. Powder from the primary feed hopper is pumped to the gun via an auxiliary and much smaller capacity auxiliary fluidized bed hopper located in relative close proximity to the spray gun.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.