Browse Prior Art Database

Fluid Memory Device

IP.com Disclosure Number: IPCOM000096628D
Original Publication Date: 1963-Aug-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Truslove, DJ: AUTHOR

Abstract

This device has ten cavities 0 to 9, only some being shown, arranged in a closed path and interconnected with each other via respective restricted passages 10. To count, a globule of liquid in one of these cavities is indexed around the closed path a cavity at a time. The liquid is one, like mercury, of high surface tension. Each cavity is of a material, like glass, which is not wetted by the liquid.

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Fluid Memory Device

This device has ten cavities 0 to 9, only some being shown, arranged in a closed path and interconnected with each other via respective restricted passages 10. To count, a globule of liquid in one of these cavities is indexed around the closed path a cavity at a time. The liquid is one, like mercury, of high surface tension. Each cavity is of a material, like glass, which is not wetted by the liquid.

Each cavity contains pairs of electrodes 12 and 13 for establishing a magnetic field through the cavities at right angles to the plane of the paper. Hence, when forward count line 14 is pulsed, current flows between electrodes 12 only in the liquid-containing cavity, i. e.. cavity 1 in this case. This current and the magnetic field develop a force on the globule that irritates the displacement rightward into cavity 2. When reverse count line 15 is pulsed, current flowing between the electrodes 13 in the liquid-containing cavity and the resultant magnetic field develops a force on the globule. This action irritates its displacement to the adjoining leftward cavity.

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