Dispensing nozzle control system
US4027708A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 1, 1976 |
| Grant date | Jun 7, 1977 |
| Priority date | — |
| Expiry date | Apr 1, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D7/48
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A control system for a gasoline dispensing nozzle which includes a locking system for placing the nozzle in an inoperative mode once the nozzle automatically shuts off. Resetting of the locking system is then required before operation of the nozzle can again be commenced. The locking system includes a biased member which maintains the automatic shut-off system in its disabling mode once it disables the nozzle. This locking system is designed primarily for use on a dispensing nozzle with a vapor receiving system and is used to discourage an operator of the nozzle from overfilling a gasoline tank, which results in increasing the risk of spilling gasoline or forcing gasoline back through the vapor return line. An alternative embodiment using magnetic locking means is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.