Device for supplying a sprayer with a liquid coating product
US10035161B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 3, 2014 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Dec 28, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/1226
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device for supplying at least one sprayer with a liquid coating product comprises at least one valve for controlling the flow of the coating product to the sprayer. The valve comprises a moveable needle, a valve body which defines a circulation volume of the coating product and a seat for supporting the needle in the closed configuration of the valve. A pneumatic driver drives the pointer in translation along an axis away from or towards the seat. The pneumatic driver comprises a piston constrained to move in translation with the needle and mounted slidably in a guide body. The pneumatic driver also comprises an end-piece penetrating into a transfer chamber. The communication line links the end-piece or the transfer chamber with a variable-volume chamber defined by the guide body and a first face of the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.