Suction producing disposable pump and dispenser
US4189245A · kind A · utility
37Cited by
4References
1Claims
0Family size
Inventor
Key dates
| Filing date | Apr 28, 1978 |
| Grant date | Feb 19, 1980 |
| Priority date | — |
| Expiry date | Apr 28, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D2200/056
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A hollow casing having a vertical bore is inserted into the open neck of a container having liquid therein in such manner as to evacuate all air in the container other than the air in the neck. A piston having a brush at one end is moved into and out of the bore to charge the brush with a selected amount of liquid and to cause a lower portion of the bore to fill with liquid by suction action. A cap secured to the top of the piston and detachably engagable with the neck enables a user to manipulate the piston as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.