Process for sealing end caps to filter cartridges
US4120711A · kind A · utility
18Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1977 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | Sep 30, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1798
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for sealing molded end caps to filter tubes comprises providing a holder for an end cap and a means for automatically dispensing a predetermined quantity of a hot, molten adhesive into the end cap. After the adhesive is added to the end cap, a filter cartridge is inserted into the end cap under slight pressure to embed the ends of the filter in the adhesive. Subsequent cooling of the adhesive results in an effective seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.