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1. (WO1998049482) ROTARY VALVE ACTUATOR WITH HIGH-LOW-HIGH TORQUE LINKAGE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/049482 International Application No.: PCT/US1998/007857
Publication Date: 05.11.1998 International Filing Date: 17.04.1998
Chapter 2 Demand Filed: 18.11.1998
IPC:
F16K 31/52 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
K
VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31
Operating means; Releasing devices
44
Mechanical actuating means
52
with crank, eccentric, or cam
Applicants:
FISHER CONTROLS INTERNATIONAL, INC. [US/US]; 8000 Maryland Avenue Clayton, MO 63105, US
Inventors:
EGGLESTON, Philip, Wayne; US
Agent:
SCARPELLI, Nate, F.; Marshall, O'Toole, Gerstein, Murray & Borun 6300 Sears Tower 233 South Wacker Drive Chicago, IL 60606, US
Priority Data:
08/844,70025.04.1997US
Title (EN) ROTARY VALVE ACTUATOR WITH HIGH-LOW-HIGH TORQUE LINKAGE
(FR) ACTIONNEUR DE SOUPAPE ROTATIVE AVEC TRINGLERIE A COUPLE DE VALEUR HAUTE-BASSE-HAUTE
Abstract:
(EN) A rotary valve actuator (10) for fluid control valves having improved actuator linkage matching the torque requirements of most rotary shaft valves. A link member (20) is pivotally interconnected to a linear movable actuating member (14) and to a rotatable lever (32). The link member enables a high actuator torque to be developed and provided during the times when the valve requires a high torque, and a low actuator torque during other times when the valve only requires a lower torque. A high-low-high actuator torque is provided matching the high-low-high torque requirements of most rotary valves.
(FR) Cette invention se rapporte à un actionneur de soupape rotative (10) pour soupapes régulatrices de fluides qui comprend une tringlerie améliorée s'adaptant aux conditions de couple de la plupart des soupapes à boisseau rotatives. Un élément de liaison (20) est relié pivotant à un élément d'actionnement mobile linéaire (14) et à un levier rotatif (32). Cet élément de liaison permet de développer un couple d'actionneur élevé et de fournir ce couple pendant des périodes où la soupape nécessite un couple élevé, et un couple d'actionneur bas pendant les autres périodes, pendant lesquelles la soupape ne nécessite qu'un couple bas. On obtient ainsi pour l'actionneur un couple de valeur haute-basse-haute s'adaptant aux conditions de couple de valeur haute-basse-haute de la plupart des soupapes rotatives.
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Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0998642AU1998071349