Drain coupling
US6092570A · kind A · utility
4Cited by
22References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1998 |
| Grant date | Jul 25, 2000 |
| Priority date | — |
| Expiry date | Aug 31, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2011/0425
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improved drain coupling of the type having a male coupling half including a body having an inner body end and an outer body end. A passage axially extends through the body intersecting the body ends. A valve is axially reciprocally mounted within the passage between a closed position and an open position for regulating flow of fluid through the passage. The improvement includes, among other things, a valve having a first valve end adjacent to the inner body end and a second valve end adjacent to the outer body end. The valve has a central portion positioned at a center of the valve adjacent to the second valve end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.