Pneumatic pendant
US4830049A · kind A · utility
1Cited by
3References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1987 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Oct 26, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87169
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pendant for controlling the energization of pneumatic motors that position an overhead crane trolley and raise and lower an object supported by a hoist mounted on the trolley is disclosed. The pneumatic pendant includes a moisture-proof housing (11) and a plurality of manually actuated pneumatic control valves mounted in the housing. The control valves include a start/stop valve (69) and direction valves (119a-d) for directing forward and reverse air pressure to the crane trolley motor, and up and down air pressure to the hoist motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.