Independent secondary indicator for vapor valve actuation
US11204134B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2020 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | May 13, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2250/0626
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A secondary indicator for a vapor recovery valve is presented. The vapor recovery valve comprises a piston and a primary indicator, the primary indicator is attached to the piston, and the piston moves linearly in relation to the actuation of the valve and moves proportionally in conjunction with the piston to provide a visual indication that the valve has actuated. The secondary indicator is mounted to the vapor recovery valve and is not attached to the primary indicator. The secondary indicator comprises a signal, a torsional spring, and a fixed pin. The secondary indicator is second class lever, the torsional spring is the effort, the fixed pin is the fulcrum, and the primary indicator is the load between the torsional spring and the fixed pin, such that the signal rotates with the linear movement of the primary indicator to multiply the effect of the primary indicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.