Chamber manifold for a hydrocarbon vapor recovery system
US3996976A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 16, 1975 |
| Grant date | Dec 14, 1976 |
| Priority date | — |
| Expiry date | Oct 16, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D7/78
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A manifold system for use in an underground hydrocarbon storage system is disclosed. The vent lines from each individual tank are connected to the manifold, and one manifold vent line extends from the manifold to a point above the surface level. A vapor return line from the manifold to a surface location for connection to a tank truck can be provided to recover the vapors displaced when the underground tanks are filled. The manifold design features a removable top for access to the float valves, thereby eliminating the need for excavation down to the manifold for maintenance. Also included in the manifold design is a feature which prevents the contamination of the unleaded gasoline by leaded gasoline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.