Ball valve assembly and method for forming
US5857663A · kind A · utility
6Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Dec 10, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49917
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotary ball valve assembly and method for forming utilizes a compression spring subjected to a non-torsional, axially directed compressive force to urge an annular seal into sealing engagement with a rotatable ball and, while so subjected, inwardly deforming a tubular member attached to the housing by an electromagnetic force to form an annular abutment retaining said compression spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.