Device for automatic closing of cut-off throttle at hose reels
US5826614A · kind A · utility
0Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 3, 1997 |
| Grant date | Oct 27, 1998 |
| Priority date | — |
| Expiry date | Feb 3, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6958
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for extracting gases comprises a rotatable reeling drum, a suction hose, a cut-off throttle, a position changing device, and a pivoting means. The position changing device cooperates with the pivoting means to open the cut-off throttle during initial rotation of the reeling drum in a direction of unwinding the suction hose and close the cut-off throttle within a first revolution of the reeling drum in a direction of winding the suction hose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.