Liquid filtration filter cap
US11369902B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2021 |
| Grant date | Jun 28, 2022 |
| Priority date | — |
| Expiry date | Aug 3, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2201/007
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter cap includes a first end and a second end facing away from the first end. A first cylindrical projection projects from the first end of the filter cap and a second cylindrical projection projects from the second end. An annular recess is formed around the first cylindrical projection. The second cylindrical projection includes at least one peripheral groove for an O-ring and a plurality of radially inward extending ridges. A passageway extends through the first and second projections. The passageway has a first dimension in the first projection, a second dimension greater than the first dimension in the second projection near a distal end of the second projection, and a third dimension smaller than the second dimension within the second projection between the plurality of ridges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.