Squeeze-bottle-type powder dispenser
US4007858A · kind A · utility
21Cited by
1References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 17, 1976 |
| Grant date | Feb 15, 1977 |
| Priority date | — |
| Expiry date | Feb 17, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/045
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Plastic squeeze bottle is provided with discharge tube as well as down tube extending from above the powder level to the lower end of the discharge tube. Baffle is disposed at the lower end of the two tubes. During dispensing, squeeze of the bottle increases air pressure above the powder which drives air down through the powder and drives air down down tube to fluidize powder on the baffle from whence it moves upward through discharge tube to discharge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.