Proximity sensor valve and lock system using same
US8919692B2 · kind B2 · utility
3Cited by
76References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2010 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Jan 21, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B9/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A proximity sensor valve includes a housing which defines a fluid inlet and a fluid outlet in communication with a cavity. A plunger pin within the cavity for movement along an axis, the plunger pin movable between an extended position and a retracted position. The plunger pin extends at least partially outward of said housing at the fully extended position. A spool is within the cavity for movement along the same axis as the plunger pin, such that the spool and the plunger pin are movable with respect to each other to control fluid flow between the fluid inlet and the fluid outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.