Patent · US Active

Leak-free rising stem valve with ball screw actuator

US9702469B2 · kind B2 · utility

5Cited by

24References

16Claims

0Family size

Inventors

Kevin Edward Burgess · Parramatta, AU
David Yakos · Bozeman, US
Ross Walker · Bozeman, US

Key dates

Filing date	Nov 11, 2015
Grant date	Jul 11, 2017
Priority date	—
Expiry date	Nov 24, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K31/12
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A rising stem valve with a magnetic actuator having an outer and as inner magnet assembly that are magnetically coupled to each other so that the inner and outer magnet assemblies rotate together and a ball screw that is connected to the rising stem valve and that converts rotary to reciprocal motion. The inner magnetic cartridge assembly and valve body comprise a sealed lower section that is completely sealed to the outside environment.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.