Strainer improvement
US4064053A · kind A · utility
11Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1976 |
| Grant date | Dec 20, 1977 |
| Priority date | — |
| Expiry date | Dec 6, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D35/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A strainer blank comprises a flat sheet having a plurality of cutouts including a cutout adapted to define a strainer portion at the apex of a cone formed from the blank. Strainer material positioned over the cutouts defines a convex rear end at the apex which is folded during formation of the conical strainer to form a multi-ply elongated seam which adds strength and provides a surface area for adhesively uniting the strainer material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.