Valve having reduced operating force and enhanced throttling capability
US9038988B1 · kind B1 · utility
1Cited by
16References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2011 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Apr 10, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K27/067
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A flow control valve element has a generally spherical ball. An inlet is formed in the ball. An outlet is also formed in the ball, the outlet opposing the inlet. A hollowed-out portion extends between the inlet and the outlet. A pair of opposing flats are formed in the ball, the flats each having a first flat portion formed in an external portion of the ball and an opposing second flat portion formed in the hollowed-out portion of the ball.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.