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1. (WO1998052014) LIQUID LEVEL SENSOR FOR USE IN A HOT, PRESSURIZED LIQUID
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/052014 International Application No.: PCT/US1998/005958
Publication Date: 19.11.1998 International Filing Date: 25.03.1998
Chapter 2 Demand Filed: 30.11.1998
IPC:
G01F 23/292 (2006.01)
G PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23
Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22
by measurement of physical variables, other than linear dimensions, pressure, or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
28
by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
284
Electromagnetic waves
292
Light
Applicants:
CASCO PRODUCTS CORPORATION [US/US]; 380 Horace Street Bridgeport, CT 06610, US
Inventors:
ROMATZICK, David, H.; US
Agent:
BITTMAN, Mitchell, D.; Sequa Corporation 3 University Plaza Hackensack, NJ 07601, US
Priority Data:
08/856,90715.05.1997US
Title (EN) LIQUID LEVEL SENSOR FOR USE IN A HOT, PRESSURIZED LIQUID
(FR) JAUGE DE NIVEAU POUR LIQUIDES CHAUDS SOUS PRESSION
Abstract:
(EN) In a preferred embodiment, a liquid level sensor (10) for use in a hot, pressurized liquid (14), including: an outer housing (20) suitable for immersion in liquid (14); an inner housing (22) disposed within outer housing (20) and containing therein electronic/electrical components (70); detection apparatus (74) disposed within outer housing (20) and inner housing (22) to detect the level of liquid (14); a space defined between outer housing (20) and inner housing (22); and means (98) to permit liquid (14) which migrates through a wall of outer housing (20) into the space and which is vaporized therein to pass to the ambient surroundings, so as to preclude migration of the liquid through a wall of inner housing (22).
(FR) L'invention porte sur une jauge de niveau (10) pour liquides (14) chauds sous pression comportant une enveloppe extérieure (20) conçue pour être plongée dans le liquide (14), une enveloppe intérieure (22) placée dans l'enveloppe extérieure (20) et contenant des composants (70) électroniques et électriques, un appareil de détection (74) placé dans l'enveloppe extérieure (20) et l'enveloppe intérieure (22) et servant à mesurer le niveau de liquide (14), un espace compris entre le logement extérieur (20) et le logement intérieur (22), et des moyens (98) permettant au liquide (14), migrant à travers une paroi de l'enveloppe extérieure (20) vers l'espace intermédiaire où il se vaporise, de rejoindre l'atmosphère environnante afin d'empêcher la migration du liquide à travers une paroi de l'enveloppe intérieure (22).
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Designated States: BR, CA, MX
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
MXPA/a/1999/009673AR015660EP0981730CA2289035