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1. (WO1979000019) APPARATUS FOR METERING OR DISTRIBUTING THE VOLUME OF LIQUIDS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000019 International Application No.: PCT/SE1978/000011
Publication Date: 11.01.1979 International Filing Date: 30.06.1978
IPC:
G01F 19/00 (2006.01) ,G01F 23/292 (2006.01)
G PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
19
Calibrated capacity measures for fluids or fluent solid material, e.g. measuring cups
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:
Inventors:
Priority Data:
770163015.02.1977SE
Title (EN) APPARATUS FOR METERING OR DISTRIBUTING THE VOLUME OF LIQUIDS
(FR) APPAREILLAGE POUR LA MESURE DU VOLUME DES LIQUIDES OU POUR LEUR DOSAGE
Abstract:
(EN) An apparatus for metering liquids into ungraduated dosage vessels (2) having bottom and side walls defining an upper mouth, at least a portion of one side wall being substantially vertical, transparent and arranged for coaction with a graduated scale (3), placed outside said portion, said scale (3) being separated from the outside of the vessel portion by an air gap, whereby light rays (5) from the scale graduations (3) pass through the interface at the inner surface of the vessel (2) wail when it is empty, so that the graduations (3) are visible from the mouth of the vessel, whereas said rays are totally internally reflected (6) when the vessel is filled with liquid (4) above the graduation mark in question, since the liquid has a greater refraction index than air, the graduation mark (3) thus being no longer visible from the mouth of the vessel (2). Metering is facilitated by the possibility of reading off the volume graduation scale (3) from above while the liquid is being poured into the vessel (2) and the apparatus is supported by a horizontal substructure such as a table. Metering can be executed for a large number of ungraduated dosage vessels (3) using one and the same means (1) provided a graduation scale (3). The apparatus is particularly suitable for doses of medicine.
(FR) Appareillage de mesure volumetrique de liquides places dans des recipients de dosage (2) non gradues presentant un fond et des parois laterales definissant une ouverture superieure, une partie au moins d"une paroi laterale etant sensiblement verticale, transparente et concue de facon a s"adapter a une echelle graduee (3) placee a l"exterieur de ladite paroi, cette echelle (3) etant separee de la paroi par une couche d"air, dans laquelle les rayons lumineux (5) provenant des graduations de l"echelle (3) traversent la lame d"air ainsi formee et penetrent a l"interieur du recipient lorsque celui-ci est vide, de telle facon que les graduations (3) soient visibles depuis l"ouverture superieure du recipient, alors que ces rayons sont reflechis totalement (6) lorsque le recipient est rempli de liquide (4) au-dessus du repere gradue en question, car le liquide presente un indice de refraction plus eleve que celui de l"air, le repere gradue (3) n"etant par consequent plus visible depuis l"ouverture superieure du recipient (2). La mesure du volume est facilitee par le fait qu"il est possible de lire l"echelle graduee en volume (3) depuis le haut tout en versant le liquide dans le recipient (2) lorsque l"appareillage est supporte par une structure horizontale telle qu"une table. La mesure volumetrique peut etre executee avec un grand nombre de recipients (3) non gradues en utilisant un seul et meme moyen (1) comportant une echelle graduee (3). L"appareillage convient particulierement au dosage des medicaments.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)