High suction intake wiper
US5407332A · kind A · utility
5Cited by
14References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1992 |
| Grant date | Apr 18, 1995 |
| Priority date | — |
| Expiry date | Feb 6, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S417/90
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a priming piston loading double acting pump for high viscosity materials, the shovel plate assembly is formed of a flexible, abrasion resistant disk or cup. The disk may be made from silicon rubber and the cup may be made from a glass filled Teflon polytetrafluoroethylene material. The clearance between the plate assembly and the intake cylinder is essentially zero to allow for a build-up of a vacuum as the plate assembly moves downwardly and out of the intake cylinder to greatly enhance the loading ability of the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.