Abacus calculator
OwnerGerald J Hendersoninventor
Life of this patent
Estimating the term…
Abstract
An electronic abacus calculator comprising an electronic abacus display screen in combination with a numeric display and an electronic keyboard calculator. The invention also comprises a personal abacus, which comprises a mechanical abacus or an electronic abacus calculator or both in a suitable carrying case, which is designed to open and make the abacus available for use in the case.
Claims21
A multi-abacus useful for performing calculations in a number base selected from multiple number bases, the multi-abacus comprising:
- a) a frame;
- b) a plurality of rods positioned parallel to each other across the frame;
- c) a first zone bead positioned on each of at least a major portion of the rods in a first zone formed by the frame and a first divider;
- d) two second zone beads positioned on each of at least a major portion of the rods in a second zone formed by the frame, the first divider and a second divider, the second zone beads being of different colors with the second zone beads of a first color being positioned nearer the first divider than the second zone beads of a second color;
- and,
- e) five third zone beads positioned on each of at least a major portion of the rods in a third zone formed by the frame and the second divider, the third zone beads comprising one third zone bead of a first color and four beads of a second color, the third zone bead of the first color being located farthest from the second divider wherein the beads are colored and positioned so that the beads used with a particular number base can be readily identified.
A multi-abacus useful for performing calculations in a number base selected from multiple number bases, the multi-abacus consisting essentially of:
- a) a frame;
- b) a plurality of rods positioned parallel to each other across the frame;
- c) one first zone bead positioned on each of at least a major portion of the rods in a first zone formed by the frame and a first divider;
- d) two second zone beads positioned on each of at least a major portion of the rods in a second zone formed by the frame, the first divider and a second divider, the second zone beads being of different colors with the second zone beads of a first color being positioned nearer the first divider than the second zone beads of a second color;
- and,
- e) five third zone beads positioned on each of at least a major portion of the rods in a third zone formed by the frame and the second divider, the third zone beads comprising one third zone bead of a first color and four beads of a second color, the third zone bead of the first color being located farthest from the second divider wherein the beads are colored and positioned so that the beads used with a particular number base can be readily identified.
A method for performing calculations in a number base selected from multiple number bases using a multi-abacus comprising:
- a) a frame;
- b) a plurality of rods positioned parallel to each other across the frame;
- c) a first zone bead positioned on each of at least a major portion of the rods in a first zone formed by the frame and a first divider;
- d) two second zone beads positioned on each of at least a major portion of the rods in a second zone formed by the frame, the first divider and a second divider, the second zone beads being of different colors with the second zone beads of a first color being positioned nearer the first divider than the second zone beads of a second color;
- and, e) five third zone beads positioned on each of at least a major portion of the rods in a third zone formed by the frame and the second divider, the third zone beads comprising one third zone bead of a first color and four beads of a second color, the third zone bead of the first color being located farthest from the second divider, the method consisting essentially of:
- a) selecting beads positioned on at least some of the rods in at least some of the zones with the beads being positioned to function as an abacus for a selected number base;
- and
- b) performing calculations on the abacus for the selected number base in the selected number base wherein the beads are colored and positioned so that the beads used with a particular number base can be readily identified.
Dependencies are inferred from the claim text.