Patent Application
20150298477
Not Applicable.
Not Applicable.
This embodiment relates to mathematical graph tools, and more particularly to a graph making device that is capable of producing a Cartesian graph on paper by means of a self-inking graph stamp.
The modern Cartesian coordinate system in two dimensions is defined by an ordered pair of perpendicular lines (axes). The lines are commonly referred to as the x and y-axes where the x-axis is taken to be horizontal and the y-axis is taken to be vertical. The point where the axes meet is taken as the origin for both, thus turning each axis into a number line. Heretofore in the plotting of graphs on a surface the common practice has been to draw by hand the coordinate axes on ruled coordinate paper or graph paper in accordance with the system of Cartesian coordinates.
In the case of school students, there is a need for drawing graphs repeatedly for the purpose of learning. The hand sketching of graphs on coordinate paper or graph paper is customarily done by freehand with pen or pencil and ruler. If there are a large number of graphs to be drawn, as in the case of school students, it becomes quite tedious and tiring. Furthermore, the hand sketching can become irregular causing an irregular graph.
In some existing graph sketching tools, a graph marking device that prints any one of a series of indicia or symbols on a graph in a precise position including a flexible ribbon bearing a plurality of graph marking indicia or symbols, manually adjustable means for manipulating the ribbon so as to select one of them for printing on the graph, and guide means to be aligned with the usual lines on the graph to indicate where the indicia or symbol will be printed when the device is operated. Some other existing graph tools, provide a plotting device for plotting points in a system of Cartesian coordinates comprising a pair of members set along coordinate scales to effect the setting of a marking member, which marking member when actuated after being thus set makes an appropriate symbol perforation or puncture on a sheet at a position corresponding to the coordinate setting of said members. However, such graph tools are used for either printing symbols on the graph or for plotting points on the graph and not for drawing the coordinate axes.
None of the existing graph-sketching tools provides the capability of automatically producing a Cartesian graph on paper without using hand sketching techniques. Such a device would save time and enhances the neatness and accuracy of the finished graph.
Therefore, there is a need for a new graph sketching device for self-sketching a Cartesian graph on paper without hand drawing. The new device would comprise a self-inking graph stamp and would solve the issue of students having to sketch graphs repeatedly. The device would save time and enhance the neatness and accuracy of the student's work. Moreover, the device would be adaptable to fit neatly into a student's pencil case. The present disclosure accomplishes these objectives.
The present embodiment is a graph making device that is capable of producing a Cartesian graph on paper without hand sketching. The graph making device comprises an outer casing having an upper portion and a lower portion. The upper portion and the lower portion are configured to be separated from each other during use. The device further comprises a button placed inside an opening on the upper portion of the outer casing, a support member placed inside the upper portion of the outer casing, a spring placed inside the upper portion of the outer casing in between the button and the support member, an ink pad placed in between a top portion and a bottom portion of the support member, and a graph stamp placed in between the top portion and the bottom portion of the support member.
The upper portion and the lower portion of the outer casing are separated and the upper portion is placed on a graphing paper with the graph stamp facing downward. Pressing the button produces a Cartesian graph on paper. The graph making device is self-inking and solves the issue of students having to sketch the graph repeatedly. The device saves time and enhances the neatness of the student's work. The graph making device is also designed to fit neatly into students pencil cases.
Other features and advantages of the present invention will become apparent from the following more detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the invention.
The following describes example embodiments in which the present invention may be practiced. This invention, however, may be embodied in many different ways, and the description provided herein should not be construed as limiting in any way. Among other things, the following invention may be embodied as methods or devices. The following detailed descriptions should not be taken in a limiting sense.
In this document, the terms “a” or “an” are used, as is common in patent documents, to include one or more than one. In this document, the term “or” is used to refer to a nonexclusive “or,” such that “A or B” includes “A but not B,” “B but not A,” and “A and B,” unless otherwise indicated. Furthermore, all publications, patents, and patent documents referred to in this document are incorporated by reference herein in their entirety, as though individually incorporated by reference. In the event of inconsistent usages between this document and those documents so incorporated by reference, the usage in the incorporated reference(s) should be considered supplementary to that of this document; for irreconcilable inconsistencies, the usage in this document controls.
Referring to
The ink pad 22 (See
After correcting the position of the graph making device 10, the button 14 is pressed to obtain a Cartesian graph as shown in
The present embodiment provides a self-inking graph making device 10 for use by math students and others. The graph making device 10 solves the issue of students having to sketch the graph repeatedly. The graph making device 10 saves time and enhances the neatness of the student's work. The graph making device 10 is also designed to fit neatly into students pencil cases. The graph making device 10 provides a small and convenient tool for making a Cartesian graph with a push of a button.
While a particular form of the invention has been illustrated and described, it will be apparent that various modifications can be made without departing from the spirit and scope of the invention. Accordingly, it is not intended that the invention be limited, except as by the appended claims.
