Leak preventing device for a closed container
US5228477A · kind A · utility
2Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1992 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Mar 12, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/17
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A device for stopping leaks in the sidewall of a container such as a 50-55 gallon drum comprising a band of flexible but non-elastic plastic material for manually wrapping around the drum so that a central portion of the band is centered over the leak. An integral inflatable bladder on the inner surface of the central portion is inflatable by a CO.sub.2 cartridge carried on the outer surface of the central portion. A lanyard runs from a CO.sub.2 release valve to one end of the band so that an installer can stand behind the drum while pulling the lanyard to inflate the bladder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.