Vapor-recovery-activated auto-shutoff nozzle, mechanism and system
US8550129B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2007 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Feb 25, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D2007/545
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A vapor-recovery-activated auto-shutoff nozzle comprises a manually operable trigger that permits selective operation of a normally closed valve between a valve-closed configuration and a valve-open configuration. Linkage arms connect the trigger and the valve, and are re-configurable between an enabled configuration and a disabled configuration. In the enabled configuration, the trigger and the valve are operatively connected such that the rest position of the trigger corresponds to the valve being closed, and the in-use position of the manually operable trigger corresponds to the valve being open. In the disabled configuration, the manually operable trigger is precluded from controlling the valve. A deactivation mechanism is for re-configuring the linkage means from the enabled configuration to the disabled configuration, in response to a condition of the fluid in a vapor recovery conduit of the nozzle, thereby precluding the valve from being controlled until the linkage arms are reset to the enabled configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.