Sight glass with check valve and filter
US6116274A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 1999 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Jun 10, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8359
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sight glass filter and check valve apparatus for use in a fluid line. The apparatus includes a housing, first and second couplers connected to the housing, a sight glass assembly, a filter assembly, and a check valve assembly. The housing includes a pair of coordinated apertures. Each of the couplers includes a first end and a second end with the first ends threadedly received by the housing and the second ends connected to the fluid line. The sight glass assembly is disposed within the housing in alignment with the apertures. The filter assembly is disposed between the housing and the first coupler. The check valve assembly is disposed between the housing and the second coupler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.