Liquid filter structure
US5549825A · kind A · utility
6Cited by
5References
12Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Oct 31, 1994 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Oct 31, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D29/688
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter screen structure for a backflushed liquid filter has a screen separating the raw-liquid side of the filter from the clean-liquid side thereof, including at least one row of substantially parallel rods extending along the screen, wherein the screen is threaded between the rods, partially enveloping the rods alternatingly from the raw-liquid side of the filter and from the clean-liquid side thereof. At least some of the rods are provided with substantially circumferential groove-like recesses, facilitating the passage of the liquid from the raw-liquid side via the screen to the clean-liquid side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.