Pump device for pumping liquid foodstuff
US6257844A · kind A · utility
23Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1999 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Sep 27, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/067
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump device for pumping liquid foodstuff includes a pump housing having an inlet and an outlet for pumping the foodstuff therethrough. A pump body is disposed within the pump housing having an elastic member which contains a predetermined volume of pressurized liquid. The pressurized liquid expands the elastic member from an unpressurized normal shape to a prestressed shape. The volume of liquid contained within the elastic member remains substantially fixed while the elastic member expands from its prestressed shape to a stretched shape to pump a predetermined amount of foodstuff out of the outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.