Seating and actuator for a ball valve
US3934849A · kind A · utility
9Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1974 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | Jun 14, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/52425
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Improvements in a ball-type shut off valve including a resilient seating means whereby an O-ring is included in conjunction with the seat to provide both metal-to-metal and metal-to-O-ring seating. Also included is a removable ball carrying means carried by the actuator arm, whereby straight through assembly of the actuator arm may be made directly through the valve operator opening thereby reducing the possibility of damaging seals on assembly and disassembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.