Compact gas cylinder valve with residual pressure function
US11118737B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2018 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Aug 12, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2227/048
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention is directed to a gas cylinder valve (2) comprising a body (4) with an inlet (18), an outlet (40) and a passage (20) fluidly interconnecting said inlet and outlet; a shut-off device (22) with a seat (26) formed in the passage (20) and a shutter (24) movable along a longitudinal axis (7) for cooperating with said seat; a spindle (12) rotatably mounted on the body (4) along the longitudinal axis (7) and cooperating with the shutter (24) such as to move said shutter upon rotation of said spindle; a residual pressure device (28) fluidly downstream of the shut-off device (22), with a seat (32) formed in the passage (20) and a piston (30) movable along a transversal axis (38. At least one of the shutter (24) and the piston (30) shows a recess or opening (24.4) accommodating the other of said shutter and piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.