Nestable pleated filter
US5810898A · kind A · utility
41Cited by
15References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 22, 1997 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | May 22, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/31
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A nestable filter having a central panel with a frame attached around the peripheral edges of the central panel. The central panel has elongated corrugations which extend longitudinally from one side to the opposite side. The frame is made up of frame members which have a generally V-shaped cross-section, the inner leg of which attaches to the edges of the corrugated central panel. Corrugated voids are formed on the inner wall of at least two of the frame members, aligned with the channels formed by the corrugations, permitting the filter to nest within a similarly constructed filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.