Hard disk drive filter
US6270609A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1999 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Jan 11, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1376
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is provided a method of forming a shaped sorbent filter preferably having a three dimensional shape. The method generally entails: PA1 a) providing porous flexible tubular web structure having two open ends; PA1 b) sealing a first end of the tubular web structure; PA1 c) filling the sealed tubular web structure with flowable filter material of sorbent material and binder; PA1 d) sealing the opposite open end of the tubular web material; and PA1 e) heating the tubular web structure to active the binder and form a shaped sorbent filter. The tubular web structure preferably is deformed while it is heated so that there is provided at least one permanently deformed bending portion. The invention method provides a simple effective process for forming complex overwrapped shaped small sorbent filters for use in the electronics industry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.