Apparatus for storing pressurized materials
US4785965A · kind A · utility
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1References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1987 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Jul 20, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D90/54
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A tank having a top surface with a top opening bounded by an upwardly extending tubular neck and a lid. A seal member on the lid is in sealing engagement with the neck inner surface so that the lid can move up and down without losing the seal. A lid retaining member is mounted on the top surface of the tank so as to retain the lid in a position in which the sealing engagement is maintained when the interior of said tank is pressurized so as to urge the lid upwardly and structure is provided for insuring against inadvertent removal of the retaining member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.