Molten metal pump with filter
US5078572A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1990 |
| Grant date | Jan 7, 1992 |
| Priority date | — |
| Expiry date | Jan 19, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D13/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A molten metal pump includes a filter that prevents ingestion of foreign material such as dross from molten metal within which the pump is immersed. The filter is a large structure that is secured to the base of the pump surrounding the pump's inlet. The filter forms a cavity adjacent the pump's inlet. The filter has a low porosity while maintaining a high flow rate for the pump. The filter is a semi-toroidal structure that is attachable to a pump base having an upper inlet. The filter surrounds the pump's inlet. The filter includes a central opening through which access can be had to the pump's impeller for purposes of inspection, repair, or replacement without disturbing the attachment between the filter and base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.