Key track system
US6740234B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2002 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Nov 29, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/4046
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A key track system for a filter base module comprises a ring-shaped fixture including a series of perforations, each perforation at least partially defining a parting line along which a tab may be selectively removed. The key track fixture is incorporated into the filter base module to define the periphery of an entryway to a cartridge-receiving receptacle in the header portion of a base module. In some embodiments, the key track fixture is a molded ring-like component with pre-key selected angularly spaced key slots. Base modules including the key track system may be efficiently configured to accept the key pattern of a filter cartridge compatible with the filter system in which the base module will be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.