Filter asembly with integral service shut-off valve
US4082673A · kind A · utility
51Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 30, 1975 |
| Grant date | Apr 4, 1978 |
| Priority date | — |
| Expiry date | May 30, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/302
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The filter assembly employs a closure portion having fluid inlet and outlet ports integral therewith enabling in-line use of the assembly. Associated with such closure is a spring biased valve handle, whereby rotation of the handle along a prescribed course of travel enables simultaneous closing of the inlet and outlet ports thusly permitting free movement of the filter assembly body from the closure. A vent is provided in the closure which acts to relieve internal pressure within the assembly thereby further enabling easy removal of the filter body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.