Automatic membrane drain device for pneumatic circuits
US4922947A · kind A · utility
3Cited by
11References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1988 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Jul 27, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/3105
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention provides an automatic drain device with membrane for pneumatic circuits. A flexible membrane (11) which separates the opening (2) of a jar (1) from a drain pipe (6) is precurved in a top position against this opening and against a skull-cap (8) against which it bears, which skull-cap then closes a communication orifice (14) provided on one side of the membrane. Under the action of the pressure in the jar, the membrane moves down to come to bear against a discharge end-piece (5) freeing, during this movement, orifice (14) and making drainage possible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.