Control system for temperature compensated vapor recovery in gasoline dispenser
US5156199A · kind A · utility
82Cited by
20References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1992 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Jan 21, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D7/32
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A system for recovering vapor emerging from a tank to which liquid is being delivered wherein a vapor pump sucks vapor from the tank with a volumetric flow that is equal to the volumetric flow of the liquid as modified so as to compensate for the change in volume of the emerging vapor caused by its proximity to the entering liquid, and apparatus for measuring the actual vapor flow and adjusting the volumetric flow of the vapor pump so that it is equal to the flow required for ideal compensation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.