MXPA98008604A - Marker point with punto descentr - Google Patents

Abstract

The present invention relates to a marker nozzle for use in a writing instrument, the marker nozzle comprises: a marker end and an elongate body that will be maintained in an absorbent relationship with a liquid marker medium, the body of which has an axis; The marker has a single tip and a generally conical marker surface extending from the tip towards the outer surface of the body, the tip is offset from the axis, such that the marker tip produces lines of varying width placing the conical marker surface against a writing surface and rotating the marking tip around the central axis of the body, while maintaining a constant angle between the marking tip and the writing surface

Description

MARKER POINT WITH DISCENTRATED POINT FIELD OF THE INVENTION The present invention relates in general to writing and marking instruments that employ the use of fibrous and porous marking tips and more specifically to an improved marker tip having an offset point which It provides the user with the ability to produce marking lines with infinite widths, without having to alter the angle at which the writing instrument is held. BACKGROUND OF THE INVENTION The use of a fibrous and porous marker tip within a writing instrument is well known within this field of art. In general, these tips have elongated bodies that are held within the "ink discharge" end of a writing instrument. A portion of each tip is typically housed within the main body of the writing instrument and connected to a reservoir area which is allowed to absorb the liquid marking medium. The remaining portion of the tip extends out of the writing instrument and as the liquid marking means is completely absorbed by the tip, it can be directed through a marking surface to produce a line of a certain width. The variety of applications in which these tips have been applied is quite large. Tips have been developed "to apply permanent, water-based and even ink-erasable types, In addition, tips having various shapes and hardnesses have been manufactured for use on marking surfaces such as paper, cardboard, pressed fiber, wood, metal, concrete and other types of masonry surfaces The specific designs of the various marker tips that currently exist in the prior art have been dictated primarily by a need for particular marking, that is, any other particular marker tip is designed to produce effectively a limited number of line widths-typically 1 or 2. An attempt to draw lines of different widths than those for which a tip is specifically designed, usually requires a user to hold the writing instrument at uncomfortable and unintended angles. Similarly, the production of thicker lines often requires the drawing of a "d" oble line "with a narrower point. As a result of the various marking requirements, the shapes of the tips currently available include round head, bullet head, pointed, angled and with multiple angles. Without a doubt, it would not be uncommon for one to have a number of those markers simply to accommodate a variety of marking requirements. From the foregoing, it should be recognized that there is still a need in the marker markers industry for a marker tip that when used as intended with an associated writing instrument, allow that user to produce lines that have an enormous variety of widths, can being maintained at a single angle with respect to a writing surface to produce those lines of varying widths, provides a true "point" for simple writing purposes, having a body that easily adapts to the standard writing instruments that currently exist. COMPENDIUM OF THE INVENTION The present invention overcomes the cumulative disadvantages associated with the variety of marker tips conventionally configured by providing a marker tip with a uniquely designed offset marker tip. This apparatus allows lines of an infinite number of widths to be drawn between a narrow minimum width and a wide maximum width. The production of all these lines can be achieved by holding the associated writing instrument at a single angle with respect to the marking surface. This tip also allows you to draw a relatively thin line from your point. The marker tip of the present invention has an elongate body with a substantially circular cross section. The size of this body is such that it can be easily accommodated within conventional marking instrument housings. Also in this aspect, the elongate body of the marker tip includes a narrow circumferential groove located at its approximate midpoint by which it can be adequately held at the end of a writing instrument. Each end of the marker tip is substantially conical in shape, with the converging portion going outward and ending at a point. However, each point is "off center" since it does not intersect the central axis of the elongated body. As a result, the "cone" that forms at each end of the marker tip has radial edges of varying widths, in the range from a narrow narrow width to a wide wide maximum. These widths, in turn, equal the infinite number of marker surfaces that can be used to produce lines that have varying widths. Since the central axis of each cone is still parallel to the central axis of the tip of the elongate body, the marker tip will remain at the exact same writing angle, no matter what line width is produced. Undoubtedly, the marker tip only needs to be rotated about its central axis, until the desired marker surface width is adjacent to the intended marker surface. In case you want to use the point of the marker tip for actual writing purposes, the instrument can be held at a slightly higher angle with respect to the writing surface (just as a pen or pencil is typically held) and employ of conformity.

Therefore, a general object of the present invention is to provide a marker tip, for use with conventional marking instruments that allows an infinite number of line widths to be plotted between a minimum width and a line maximum. Another object of the present invention is to allow the user of a marking instrument to hold the marker tip at a single angle with respect to the marking surface regardless of the line width that is drawn. A further object of the present invention is to provide a marker tip which in addition to allowing a variety of line widths to be drawn, includes a point by which the tip can be used as a real writing instrument. Additional objects and advantages of the invention will be apparent to those with ordinary skill in the pertinent art upon review of the following detailed description, accompanying drawing and appended claims. BRIEF DESCRIPTION OF THE DRAWING The present invention is illustrated more diagonally in the accompanying drawing wherein: Figure 1 is a side view of the preferred embodiment of the improved marker tip having a substantially planar writing surface; Figure 2 is a top view of the preferred embodiment of the improved marker tip; Figure 3 is an end view of the preferred embodiment of the improved marker tip; Figure 4 is a side view of the alternating mode of the improved marker tip having a slightly convex writing surface; Figure 5 is a top view of the alternating mode of the improved marker tip; and Figure 6 is an end view of the alternating mode of the improved marker tip. It should be noted that the Figures are not necessarily to scale and that the modalities are sometimes illustrated by graphic symbols, dotted lines and diagrammatic representations. In certain cases, details that are not necessary for an understanding of the present invention or that make other details difficult to perceive, may have been omitted. It will be understood of course that the invention is not necessarily limited to the particular embodiments illustrated herein. DESCRIPTION-M r-KTAT.THE DRAWING Similar reference numbers will be used to refer to similar or similar parts of Figure in Figure, in the following description of the drawing.

Turning first to Figure 1, the offset point marker tip of the present invention is generally illustrated at 1. The tip is primarily defined by its longitudinal outer surface 3, mounting slot 4 and tapered marker ends 5. This particular embodiment shows two tapered marker ends 5 which are identical but are simply rotated 180 ° to each other on the central longitudinal axis of the tip 9. It should be noted, however, that the angular orientation of each marker end 5 with respect to the other is simply random. The marker tip 1 is formed of a porous, fibrous material that allows for the absorption of a liquid marking medium (typically, some form of ink). The present invention also contemplates, however, the formation of a marker tip of other types of materials such as plastic and metal. Each end of conical marker 5 includes both a maximum end width 6 and a minimum end width 7. That design is achieved by placing the point 8 of the conical marker end 5 closest to an edge of the longitudinal outer surface 3, in instead of directly on the central longitudinal axis of the tip 9. Undoubtedly, the present invention contemplates a variety of marker tip configurations, wherein the relative lengths of each maximum end width 6 and minimum end width 7 are different for each configuration.

"For the particular configuration in which the point 8 is placed quite close to an edge of the outer surface 3, a maximum marking line width can be obtained from a tapered round tip of a given diameter. It should be noted that while the marker end 5 is offset from the central longitudinal axis 9, its own conical end axis 12 is undoubtedly still parallel to the central longitudinal axis 9. As a result, all the width of the marker end 5 (including the maximum end width 6 and the minimum end width 7 and all intermediate end widths) is placed at an equal angle of inclination with respect to the conical end axis 12. As a practical matter, therefore, this tip of marker 1 can be held at the same angle of inclination with respect to the marking surface, regardless of the line width that is drawn. The user only needs to rotate the marker tip, and its associated writing instrument about the central axis of the tip 9 until the width of the desired marker surface is adjacent to the intended marking surface. Directing the marker tip through the marking surface will then produce a line of the desired width. The maximum end width 6 and the minimum end width 7 as illustrated in Figure 1, are substantially planar surfaces that are fully engaged by a writing surface when employed as intended. The decentered positioning of the tapered marker end 5 results in a relatively oval edge 13 that is formed on the outer surface at each end of the marker tip 1. Within this oval edge 13 are both a high end 19 and a low end 11 associated with the minimum end width 7 and the maximum end width 6, respectively. Again, it should be noted that while Figure 1 offers both a maximum end width 6, and a minimum end width 7 of the conical marker end 5, there is an infinite number of end widths that exist between these two ends of the spectrum. Marker tip 1 also includes dot 8 for real writing purposes. In conjunction with the instrument where it is mounted, the marker tip 1 can then be held at a slightly greater and more convenient angle with respect to that of the writing surface. The marker tip can then be used like any other ordinary writing instrument. Figure 2 presents a side view of the present invention and offers a slightly different perspective at the ends of conical marker 5. From this view, it can be seen that the maximum end width 6 is defined as the distance between point 8 and the edge lower ll. Similarly, the minimum end width 7 is defined as that distance between the point 8 and the high edge 10. As previously noted, the conical marker end 5 includes an infinite number of radial end widths between the maximum end width 6. and the minimum end width 7. The top view of the marker tip illustrated in Figure 2 also provides the average end width 14 which is approximately half the length of the maximum end width 6 and twice the width Minimum end 7. Now with reference to Figure 3, an end view of the present invention is illustrated, whereby the radial position of the point 8 is exemplified with respect to the outer surface of the marker tip 3. The width The maximum end 6 and the minimum end width 7 are again defined in Figure 3 with the shaded surfaces representing the various other end widths that are available for marking purposes. Figure 4 presents an alternate embodiment of the present invention, wherein its respective maximum end width 21 and minimum end width 22, as well as all other end widths between these two, are slightly convex in shape. This arcuate dimension is denoted by the letter "R" in Figure 4. All other dimensions of the tip of the marker 2 as illustrated in Figure 4 are identical to those of the tip of the marker illustrated and described in Figure 1, including point 23, high edge 24, low edge 25, outer surface 26 and mounting groove 27. Figure 5 presents a top view of marker tip 2, where it can be seen that again the maximum end width 21 , is defined as that distance between the point 23 and -the low edge 25 and the minimum end width 22, is defined as that distance between the point 23 and the high edge 24. This alternate modality, wherein the end of conical marker 20 includes a slightly convex edge, it also includes all end widths that lie between the maximum end width 21 and the minimum end width 22. For example, the top view of Figure 5 shows the average end width 28 which is about half as long as the maximum end width 21 and twice as long as the minimum end width 22. Turning now to Figure 6, an end view of the marker tip 2, illustrates that it is substantially identical in sight end illustrated and described in Figure 3. Undoubtedly, the tip 23 is placed substantially closer to an edge of the outer surface 26, such that the maximum end width 21, the minimum end width 22 and all the other end widths that are intermediate, may be formed. The point 23 of the marker tip 2 is intended to be the same size and shape as point 8 of the marker tip 1, such that the marker tip 2 can also be used as a real writing instrument. While the present invention has been illustrated in some detail in accordance with the preferred embodiment illustrated in the foregoing drawing and description, it will be apparent to those skilled in the pertinent art that equivalent variations can be made within the spirit and scope of what has been described specifically. Accordingly, it is intended that the scope of the invention be limited only by the scope of the appended claims, and not by any specific phrase in the previous description.

Claims (1)

CLAIMS 1. Improved marker tip for use in a writing instrument, the tip has an elongated body and is held within a leading end of the writing instrument, such that one end of the tip is provided for purposes marking and one inboard end is maintained in a reservoir section of the writing instrument in absorbent relation with a liquid marking means, the improvement comprises a marker tip surface which through the ordinary use of the writing instrument, facilitates the production of liquid marker medium lines on a marking surface, where the lines may already have a narrow width, a wide width that is considerably wider than the narrow width, or any width that is between the narrow width and the width large. 2. Improved marker tip as described in claim 1, wherein the tip of the marker is maintained substantially at the same angle with respect to the marking surface, when the marker surface produces a line of liquid marking medium that already it has narrow width, broad width or any width that is between narrow width and wide width. 3. Improved marker tip as described in claim 2, wherein the marker tip surface is generally generally tapered with a converging end extending outwardly from the tip. 4. Improved marker tip as described in claim 3, wherein the portion of the marker tip surface contacting the marker surface at any given time during ordinary use of the writing instrument is substantially linear in form. 5. Improved marker tip as described in claim 3, wherein the converging end of the conically displaced marker surface terminates at a point. 6. Improved marker tip as described in claim 5, wherein the elongate body of the marker tip has a substantially circular cross section. 7. Improved marker tip as described in claim 6, wherein the point of the marker tip surface does not interconnect a central axis of the circular cross section. 8. Improved marker tip as described in claim 3, wherein the portion of the marker tip surface contacting the marking surface at any given time during ordinary use of the writing instrument is slightly convex in shape. 9. Improved marker tip as described in claim 8, wherein a converging end of the conically displaced marker surface terminates at a point. 10. Improved marker tip as described in claim 9, wherein the elongated body of the marker tip has a substantially circular cross section. 1.

1.- Improved marker tip as described in claim 10, wherein the point of the marker tip surface does not interconnect a central axis of the circular cross section.