Multicolor writing and painting instruments with multiple, bundled, hard, wear-resistant nibs

• US 8,403,577 B2
• Filed: 12/12/2008
• Issued: 03/26/2013
• Est. Priority Date: 12/12/2007
• Status: Expired due to Fees

• Current Assignee: University of Southern California
• Original Assignee: University of Southern California
• Inventors: Khoshnevis, Behrokh
• Primary Examiner(s): LE, HUYEN D
• Application Number:
  US12/333,603
• Publication Number:
  US 20090154982A1
• Time in Patent Office: 1,565 Days
• Field of Search: 401/34, 401/35, 401/16, 401/22
• US Class Current: 401/35
• CPC Class Codes: B41J 3/36 for portability , i.e. hand-held printers or laptop printers B41J3/4075 takes precedence
• CPC Class Codes: B43K 1/00 Nibs continuously adjustable nibs B43K17/00; Writing-points for indicating or recording apparatus G01D15/16
• CPC Class Codes: B43K 27/00 Multiple-point writing implements, e.g. multicolour; Combinations of writing implements B43K29/00 takes precedence; mechanisms for selecting, projecting, retracting or locking writing units B43K24/00; multiple writing devices with pantographic linkages B43L13/12
• CPC Class Codes: B43K 27/08 Combinations of pens
• CPC Class Codes: B43K 27/12 of ball-point pens
• CPC Class Codes: B43K 5/025 with multiple colours
• CPC Class Codes: B43K 5/18 Arrangements for feeding the ink to the nibs
• CPC Class Codes: B43K 7/02 Ink reservoirs; Ink cartridges B43K7/01 takes precedence
• CPC Class Codes: B43K 7/10 Arrangements for feeding ink to the ball points B43K7/01 takes precedence
• CPC Class Codes: B43K 8/03 Ink reservoirs; Ink cartridges
• CPC Class Codes: B43K 8/04 Arrangements for feeding ink to writing-points

Abstract

A multicolor writing and painting instrument may include a plurality of hard, wear-resistant nibs at an end of the tubular housing. Each nib may have a tip. The nibs may be bundled together such that the tips of the nibs lie in substantially the same plane and approximately on the circumference of a common circle. The instrument may include an ink reservoir for each of the nibs within the tubular housing. Each ink reservoir may be configured to hold a colored ink. The instrument may include a single, hard, wear-resistant nib at an end of the tubular housing. The nib may have a writing surface. A plurality of tubes may each lead to the writing surface of the nib. The tubes may form a plurality of openings on the writing surface. The openings may be arranged in clusters of one or more openings. Each cluster of openings may lie approximately along a circumference of a common circle. There may be a separate ink reservoir within the tubular housing for each cluster of openings.

Claims

1. A multicolor writing and painting instrument comprising:

a tubular housing sized and shaped to be held by fingers of a user;

a single, hard, wear-resistant nib at an end of the tubular housing, the nib having;

a substantially-curved writing surface; and

a plurality of tubes which each lead to the substantially-curved writing surface of the nib, the tubes forming a plurality of openings on the writing surface, the openings arranged in clusters of one or more openings, each cluster of openings lying approximately along a circumference of a common circle, the substantially-curved writing surface on the nib and the openings on them being configured so as to cause ink at only a subset of the openings to come in contact with a flat writing surface at any one time;

a separate ink reservoir within the tubular housing for each cluster of openings; and

a fluid delivery system within the tubular housing connected between each ink reservoir and the tubes which form the openings of one of the clusters of openings and configured to deliver fluid from the reservoir to which it is connected to the tubes to which it is connected.

2. The multicolor writing and painting instrument of claim 1 wherein the nib is made of glass.

3. The multicolor writing and painting instrument of claim 1 wherein the nib is made of ceramic.

4. The multicolor writing and painting instrument of claim 1 wherein the nib is made of metal.

5. The multicolor writing and painting instrument of claim 1 wherein each cluster includes more than one opening, and wherein each cluster of openings is spaced apart from the other clusters of openings such that each opening in a cluster is closer to another opening in the cluster than to an opening in any other cluster.

6. The multicolor writing and painting instrument of claim 1 wherein each tube is configured to transfer fluid by capillary action.

7. The multicolor writing and painting instrument of claim 1 wherein each fluid delivery system includes a capillary element configured to transfer fluid by capillary action.

8. The multicolor writing and painting instrument of claim 1 wherein the tubes which form the openings of each of the clusters of openings lead to an ink distribution hub that is separate from all of the other ink distribution hubs.

9. The multicolor writing and painting instrument of claim 1 wherein each reservoir contains a different colored ink.

10. The multicolor writing and painting instrument of claim 9 wherein there are three and only three clusters of openings and reservoirs.

11. The multicolor writing and painting instrument of claim 10 wherein one of the reservoirs contains yellow ink, another cyan ink, and the other magenta ink.

12. The multicolor writing and painting instrument of claim 1 wherein there are two and only two clusters of openings, ink reservoirs, and fluid delivery systems.

13. The multicolor writing and painting instrument of claim 1 wherein there are three and only three separated clusters of openings, ink reservoirs, and fluid delivery systems.

14. The multicolor writing and painting instrument of claim 1 further comprising color selection indicia on the surface of the tubular housing that is configured to communicate to the user the color the instrument is positioned to write.

15. The multicolor writing and painting instrument of claim 14 wherein the color selection indicia includes a color selection indicia for each of the clusters of openings, and wherein each color selection indicia extends across only a portion of the perimeter of the cross-section of the tubular housing and is located opposite in rotational position to that cluster of openings.

16. The multicolor writing and painting instrument of claim 15 wherein each color selection indicia for a cluster of openings includes a visual color that is approximately the same as the colored ink delivered to the tubes which lead to that cluster of openings.

17. The multicolor writing and painting instrument of claim 1 wherein the tubular housing has a plurality of substantially flat longitudinal surfaces, each corresponding to one of the separated clusters of openings.