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1. (WO1997018397) SLOW START SUPPLY AND EXHAUST VALVE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/018397 International Application No.: PCT/US1996/018700
Publication Date: 22.05.1997 International Filing Date: 13.11.1996
Chapter 2 Demand Filed: 06.06.1997
IPC:
F15B 11/068 (2006.01) ,F15B 13/043 (2006.01) ,F16K 31/42 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
11
Servomotor systems without provision for follow-up action
06
involving features specific to the use of a compressible medium, e.g. air, steam
068
with valves for gradually putting pneumatic systems under pressure
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
13
Details of servomotor systems
02
Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
04
for use with a single servomotor
042
operated by fluid pressure
043
with electrically-controlled pilot valves
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
12
actuated by fluid
42
by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
Applicants:
WILKERSON CORPORATION [US/US]; P.O. Box 1237 Englewood, CO 80150, US
Inventors:
BOHENICK, Frank, T.; US
Agent:
WAHL, John, R.; Holland & Hart Suite 3200 555 17th Street P.O. Box 8749 Denver, CO 80201-8749, US
Priority Data:
08/744,97807.11.1996US
60/006,42713.11.1995US
Title (EN) SLOW START SUPPLY AND EXHAUST VALVE
(FR) SOUPAPE D'ALIMENTATION ET D'ECHAPPEMENT POUR DEMARRAGE LENT
Abstract:
(EN) A valve (10) for controlling the supply and exhaust of compressed air to and from a compressed air operating system. The valve includes a pilot actuated normally closed main control valve (22) and a pilot actuated exhaust valve piston (42). A pilot actuated valve actuator (38) opens and closes the main valve (22) during system start repetitively in response to the build up of pressure in the system independently of the system volume until the system pressure is equalized.
(FR) La présente invention concerne une soupape (10) destinée à commander l'admission et l'échappement d'air comprimé dans un système pneumatique. Cette soupape comprend une soupape de commande principale (22) normalement fermée, actionnée par pilote, et un piston (42) pour soupape d'échappement, actionné par pilote. Un dispositif de commande de soupape (38) actionné par un pilote ouvre et ferme la soupape principale (22) de manière répétée, pendant le démarrage du système, en réaction à l'accroissement de la pression dans le système indépendamment de son volume, jusqu'à ce que cette pression soit équilibrée.
Designated States: AL, AM, AT, AU, AZ, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, 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:
AU1997010802