Valve assembly and disassembly device
US4388945A · kind A · utility
20Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1982 |
| Grant date | Jun 21, 1983 |
| Priority date | — |
| Expiry date | Jan 4, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6045
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A device for enabling the assembly and disassembly of a top entry ball valve takes the form of a pin formed from rod-like material with a conical end. When the pins are inserted into the top entry of the valve housing the spring loaded valve seats are forced backwardly by the advance of the sloped face of the pins. In a second embodiment, the ends of the pins are teardrop shaped. After the pins are inserted, they are rotated 90.degree. causing the seat to be pushed back by the larger diameter of the pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.