Emergency draining device for stopping pneumatic cylinders
US4690035A · kind A · utility
2Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1986 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Sep 29, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B21/008
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An emergency drain device for pneumatic cylinders which is integrated in an orientatable connection fixed directly to the cylinder body and comprises a valve which closes an orifice of the bolt of the connection, going to the atmosphere, when a control pressure is applied to the head of the bolt. This device is advantageously used in installations where a general isolating switch, controlled by the same control pressure, connects the general distribution line to the atmosphere, for example in the case of an emergency, when said pressure disappears.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.