Basket filter
US4374026A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 20, 1981 |
| Grant date | Feb 15, 1983 |
| Priority date | — |
| Expiry date | Apr 20, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D29/23
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is an improved basket filter which minimizes raw material waste and is formed of at least one rectangular perforated metal foil part folded along a bending line at its middle, transversely to its longitudinal edge, and at least two perforated metal foil elements in the form of sectors of a circle. The longitudinal edges of the rectangular metal foil part are connected to the straight line edges of the metal foil elements in the form of sectors of a circle so that, after assembly, the filter defines a round opening which merges into a straight line bottom edge. Adjoining edges between the rectangular metal foil part and the straight line edges of the metal foil elements are embedded in a plastic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.