Pneumatic control for container filling machine
US5161586A · kind A · utility
6Cited by
14References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 1991 |
| Grant date | Nov 10, 1992 |
| Priority date | — |
| Expiry date | May 14, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67C2003/2685
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pneumatic circuit for controlling a liquid filler. A pilot air conduit conducts high pressure air to a pilot valve and a back pressure piloted valve. The pilot valve is normally closed so as to prevent the supply of liquid product to a container. High pressure air in the pilot air conduit opens the pilot valve to actuate supply of liquid to the container. A level sensor positioned above the container being filled provides a back pressure signal to the back pressure piloted valve causing it to exhaust the high pressure pilot air from the pilot air conduit causing the pilot valve to close.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.