Filter system using a self-venting drain
US10272372B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2015 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Jan 31, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/291
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter element is provided that has a generally cylindrical configuration and that defines a longitudinal axis and a radial direction. The filter element comprises a center tube that defines a central reservoir and that includes annular filter media surrounding the center tube and the central reservoir, an open end joined to the center tube disposed along the longitudinal axis, the open end including an opening allowing fluid to flow from the central reservoir to the outside of the filter element, and a closed end joined to the center tube opposite the open end disposed along the longitudinal axis, the closed end including an end cap comprising a body that defines an attachment pocket and an air pocket that surrounds the attachment pocket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.