Leak-free rotary valve with internal worm gear
US9377121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2012 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | May 21, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/54
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotary valve assembly composing a leak-free enclosure containing a worm gear and a pinion gear, an adapter plate that is situated between a rotary valve body and the enclosure and that secures the rotary valve body to the enclosure, and a magnetic actuator assembly. The worm gear engages with the pinion gear such that when the worm gear rotates, the pinion gear rotates as well. The enclosure is situated between the magnetic actuator assembly and the rotary valve body. A shaft extends through the center of the pinion gear and causes a valve within the rotary valve body to open and close based on rotation of the shaft. In an alternate embodiment, the invention is a rotary valve as described above with an integral adapter plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.