Differential pressure opening and excess flow closing valve for gas cylinder
US11927308B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2020 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Dec 2, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2227/048
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve for a fluid, comprising: a body with an inlet, an outlet and a passage fluidly interconnecting the inlet and outlet; a shut-off device housed in the body and configured for selectively opening and closing the passage, the shut-off device comprising a main seat, a main closing element forming a channel extending there through and a pilot seat, a pilot closing element housed in the main closing element, a first compression spring, and a second compression spring; an actuating device of the shut-off device. The second compression spring is operatively mounted between the main closing element and the body and the first compression spring is stronger than the second compression spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.