Automatic drain system
US6178985A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Jun 14, 1999 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Jun 14, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7378
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An automatic drain system for removal of condensate from compressed air systems comprises a reservoir having an inlet for entry of condensate and outlet for the periodic discharge of accumulated condensate. The discharge, through a ball valve in the outlet, is controlled by a float structure responsive to the level of accumulated liquid condensate in the reservoir. An air discharge tube is provided for the exiting of air when the float (and liquid level) is at the highest position. The air discharge tube is in fluid communication with an air cylinder outside of the reservoir. The air cylinder is coupled to the ball valve to open the valve and allow liquid condensate to exit in response to air pressure transmitted from the air discharge tube. As the liquid exits the liquid level and float are lowered. When float is at its lower position, the float structure closes across the air discharge tube and the cycle repeats.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.