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1. (WO2013082178) LEAK-FREE ROTARY VALVE WITH INTERNAL WORM GEAR

Pub. No.:    WO/2013/082178    International Application No.:    PCT/US2012/066884
Publication Date: Fri Jun 07 01:59:59 CEST 2013 International Filing Date: Thu Nov 29 00:59:59 CET 2012
IPC: F16K 31/02
Applicants: BIG HORN VALVE, INC.
Inventors: BURGESS, Kevin
YAKOS, David
WALTHALL, Bryan
Title: LEAK-FREE ROTARY VALVE WITH INTERNAL WORM GEAR
Abstract:
A rotary valve assembly comprising 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 in 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 situatted between tbe magnetic actuator assembly and the rotary valve body, A shaft extends through tbe center of the pinion gear and causes a valve within the rotary valve body to open and close based on rotation of the shall. In an alternate embodiment the invention is a rotary valve as described above with an integral adapter plate.