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1. (WO1991008409) DEFORMABLE DIAPHRAGM VALVE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/008409 International Application No.: PCT/FR1990/000877
Publication Date: 13.06.1991 International Filing Date: 04.12.1990
Chapter 2 Demand Filed: 17.06.1991
IPC:
B65D 90/56 (2006.01) ,F16K 7/07 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
D
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
90
Component parts, details or accessories for large containers
54
Gates or closures
56
operating by deformation of flexible walls
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
7
Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage
02
with tubular diaphragm
04
constrictable by external radial force
07
by means of fluid pressure
Applicants:
COMMISSARIAT A L'ENERGIE ATOMIQUE [FR/FR]; 31-33, rue de la Fédération F-75015 Paris, FR (AllExceptUS)
NOE, Claude [FR/FR]; FR (UsOnly)
Inventors:
NOE, Claude; FR
Agent:
BREVATOME; 25, rue de Ponthieu F-75008 Paris, FR
Priority Data:
89/1606005.12.1989FR
Title (EN) DEFORMABLE DIAPHRAGM VALVE
(FR) VANNE A MEMBRANE DEFORMABLE
Abstract:
(EN) Inflatable diaphragm valve comprising an inner diaphragm (11) forming a seal and an outer diaphragm (13) surrounding the inner diaphragm and enable to move outwardly under inflation. Inflation, possibly associated with a lifting motion, pulls the inner diaphragm (11) in a rolling or folding manner thereby catching any material which may adhere downstream of the inner membrane (11) and then become detached therefrom. Application particularily to pipes carrying concrete.
(FR) Vanne à membrane gonflable qui est composée d'une membrane interne (11) assurant l'étanchéité et d'une membrane externe (13) entourant la précédente et ne pouvant se gonfler vers l'extérieur. Le gonflage, joint éventuellement à un mouvement ascendant, tire la membrane interne (11) de manière à réaliser un enroulement ou un plissement coinçant la matière pouvant adhérer en aval de la membrane interne (11) et se détacher par la suite. Application en particulier aux conduites transportant du béton.
Designated States: JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: French (FR)
Filing Language: French (FR)