Constant pressure fluid-dispensing pumping system and method
US7225946B2 · kind B2 · utility
10Cited by
9References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2003 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | Jan 26, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2205/09
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved microprocessor-controlled dual piston-pump viscous fluid dispensing system as for dispensing uniform sealing beads and the like (as well as other types of uniform deposits), wherein the pressure throughout the fluid path is maintained constant including during the switching alternately between filled and emptying pumps of the pair, assuring a constant dispensing rate, including during the switchover of the pumps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.