Apparatus and method for lubricating pressure relief valves
US8522926B2 · kind B2 · utility
6Cited by
20References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2006 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Sep 18, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N27/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A lubricant applicator unit for pressure relief valves for a system for applying pressure relief valves to packaging during a packaging process, including a vacuum applicator for temporarily separating layers of the valve when the lubricant is applied. A pressurized nozzle sprays or atomizes the lubricant into the valve opening. Graphite suspended in liquid silicone is used as the lubricant; it is recirculated in a reservoir to keep the graphite in suspension. Optical sensors check for valves before the entrance to, and after exit from, the vacuum applicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.