IP Library › Granted Patent US 12,287,192
Granted Patent B1
US 12,287,192 · App. 17/956,115 · Granted Apr 29, 2025

Fractional and decimal ruler and method of use

Inventor: Kynan Wyatt Mann (Altadena, CA)
G01B3/006G01B3/04
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Quick Facts
Patent No.
US 12,287,192
App. No.
17/956,115
Granted
Apr 29, 2025
Kind
B1
Abstract

A ruler includes an elongated base having a longitudinal axis, a first outer edge, and an opposite second outer edge. A scale is received by the base and is slidably positionable along the longitudinal axis to a plurality of detent positions. The scale includes indicia depicting both fractional and decimal portions of one inch.

Claims (75)

1. A ruler comprising:

an elongated base having a longitudinal axis, a first outer edge, and an opposite second outer edge;

a scale which is received by said base, said scale slidably positionable along said longitudinal axis to a plurality of detent positions;

said scale including indicia depicting both fractional and decimal portions of one inch;

said base including a first inner edge, an opposite second inner edge, a first inner end edge, an opposite second inner end edge, said first inner edge, said second inner edge, said first inner end edge, and said second inner end edge forming a longitudinal slot:

said scale received by and longitudinally positionable along said slot;

said first inner edge including a plurality of spaced apart first notches;

said scale including an outwardly biased first stop which engages one of said plurality of first notches;

said second inner edge including a plurality of spaced apart second notches; and,

said scale including an outwardly biased second stop which engages one of said plurality of second notches.

2. The ruler according to claim 1 further including:

said plurality of detent positions being one inch apart.

3. The ruler according to claim 1 further including;

said plurality of first notches spaced one inch apart.

4. The ruler according to claim 1 further including;

said plurality of second notches spaced one inch apart.

5. The ruler according to claim 1 further including:

said plurality of first notches longitudinally offset from said plurality of second notches by one half inch.

6. The ruler according to claim 1 further including:

said scale including a tab;

said first inner edge including a first disassembly notch, and said second inner edge including an opposite second disassembly notch; and,

said first and second disassembly notches shaped and dimensioned to allow passage of said tab.

7. The ruler according to claim 6 further including:

said scale including a second tab;

said first inner edge including a third disassembly notch, and said second inner edge including an opposite fourth disassembly notch; and,

said third and fourth disassembly notches shaped and dimensioned to allow passage of said second tab.

8. The ruler according to claim 1 further including:

said scale having scale indicia representing one inch.

9. The ruler according to claim 8 further including:

said scale having a bottom surface; and,

said scale indicia disposed on said bottom surface of said scale.

10. The ruler according to claim 8 further including;

said scale indicia including;

⅞, ¾, ⅝, ½, ⅜, ¼, ⅛;

0.875, 0.75, 0.625, 0.5, 0.375, 0.25, 0.125;

13/16, 11/16, 9/16, 7/16, 5/16, 3/16, 1/16; and,

0.938, 0.813, 0.688, 0.563, 0.438, 0.313, 0.188, 063.

11. The ruler according to claim 8 further including:

said scale indicia including different colors.

12. The ruler according to claim 1 further including:

said elongated base and said scale both being transparent.

13. The ruler according to claim 1 further including:

said first outer edge having indicia of inches; and,

said second outer edge having indicia of centimeters.

14. The ruler according to claim 1 further including:

said plurality of detent positions being one inch apart;

said plurality of first notches longitudinally offset from said plurality of second notches by one half inch;

said scale including a tab;

said first inner edge including a first disassembly notch, and said second inner edge including an opposite second disassembly notch;

said first and second disassembly notches shaped and dimensioned to allow passage of said tab;

said scale including a second tab;

said first inner edge including a third disassembly notch, and said second inner edge including an opposite fourth disassembly notch;

said third and fourth disassembly notches shaped and dimensioned to allow passage of said second tab;

said scale having scale indicia representing one inch;

said scale having a bottom surface;

said scale indicia disposed on said bottom surface of said scale said scale indicia including;

⅞, ¾, ⅝, ½, ⅜, ¼, ⅛;

0.875, 0.75, 0.625, 0.5, 0.375, 0.25, 0.125;

13/16, 11/16, 9/16, 7/16, 5/16, 3/16, 1/16; and,

0.938, 0.813, 0.688, 0.563, 0.438, 0.313, 0.188, 063 said scale indicia including different colors;

said elongated base and said scale both being transparent;

said first outer edge having indicia of inches; and,

said second outer edge having indicia of centimeters.

15. A method for measuring a distance comprising:

(a) providing a first point and a second point;

(b) providing a ruler having an elongated base having a longitudinal axis, a first outer edge including inch indicia, an opposite second outer edge, an index mark, a scale which is received by said base, said scale slidably positionable along said longitudinal axis to a plurality of detent positions, said scale including scale indicia depicting both fractional and decimal portions of one inch, said scale including a scale index;

(c) positioning said base so that said index mark aligns with said first point;

(d) slidably positioning said scale until said scale indicia aligns with said second point;

(e) using said scale index and said scale indicia to determine the distance between said first point and said second point;

in (a) said base including a first inner edge, an opposite second inner edge, a first inner end edge, an opposite second inner end edge, said first inner edge, said second inner edge, said first inner end edge, and said second inner end edge forming a longitudinal slot, a scale received by and longitudinally positionable along said slot;

in (a) said scale including a tab;

in (a) said first inner edge including a first disassembly notch, and said second inner edge including an opposite second disassembly notch;

said first and second disassembly notches shaped and dimensioned to allow passage of said tab;

positioning said scale so that said tab aligns with said first and second disassembly notches; and,

pushing said tab toward said base wherein said tab passes though said first and second disassembly notches and said scale separates from said base.

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Cited By (1)
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