This invention relates to an eraser and more particularly to an eraser in the form of an elastic band.
Erasable surfaces, such as chalkboards, electronic chalkboards, and dry-erase boards, are staples in classrooms and conference rooms across the world. They provide a surface upon which educators and presenters convey information to their audiences. Inevitably, once a mistake is made or the board is filled with information, the communicator must correct the error or make room for additional information by erasing some or all erasable markings, such as chalk, electronic, or dry-erase marker, from the board. Naturally, the quicker a communicator can erase the unwanted information, the quicker he/she can return to displaying new and correct information. However, the communicator must often take the time to retrieve an eraser from an eraser tray, move the eraser back to the location of the error, and then proceed to erase. Alternatively, the communicator must hold the eraser with the non-writing hand and then erase with the generally non-dexterous hand; or actively hold the eraser with the non-writing hand and then proceed to erase by switching the eraser to the dexterous hand. In either case, both hands are occupied and additional time is spent manipulating both writing and erasing implements.
Moreover, time spent erasing is markedly prolonged whenever small, erroneous markings warrant immediate correction. Very often, in the interest of time, a communicator is drawn to using his/her bare hand to make a small correction, leaving his/her hand covered in chalk dust or ink, and the writing surface blotched. From just extended holding or handling of the chalk or marker while writing, the communicator is often left with hands covered in chalk dust and marks. With respect to electronic or touch screen based boards, use of a bare hand can leave bodily excretions (e.g, oils, sweat) on the touch screen resulting in obscured words and pictures.
What is needed is an eraser that allows a user to erase without having to pickup or hold an eraser, and allows the user to conveniently make corrections (e.g., using hands or fingers) while keeping the hands or fingers clean and/or leaving the writing surface clean.
Various exemplary embodiments provide an elastic eraser band that may be worn around portions of the hand and a method for erasing marks from an erasable surface using the elastic eraser band.
In one embodiment, the eraser includes a fabric that is formed as a band and is sized to fit around a portion of a user's hand. The fabric can include, for example, an elastic material and an eraser material.
In another embodiment, a method of erasing erasable markings from an erasable surface is provided, which includes putting on an eraser band and wiping the erasable surface with the eraser band to erase a mark.
The foregoing and other aspects of the invention will be better understood from the following detailed description, which is provided in connection with the accompanying drawings, in which:
Embodiments of the present invention relate to an elastic eraser band that may be worn around portions of a user's hand or portion thereof (e.g., palm or fingers) and used to erase erasable marks, such as chalk, dry-erase ink, electronic, or other erasable marks, from an erasable surface, such as a chalk-board, a dry-erase board, electronic chalkboard, computer touch screen, or other erasable surfaces.
In one embodiment, the eraser band 102 can be made of a fabric that includes an elastic material and an eraser material. The elastic material gives the eraser band 102 an elastic property so that the eraser band 102 may fit snuggly around various portions of a user's hand 101. The elastic material may include elastic materials such as rubber or commercially known polymers, such as spandex, anidex, and other elastomeric fibers, but is not limited to these fibers. The elastic material may be arranged, for example, in the form of threads or bands.
The eraser band 102 also includes an eraser material, where eraser material is defined herein as being a material that removes erasable marks from an erasable surface when applied to the marks. As such, the eraser material may include material with properties to remove erasable marks, such as chalk dust and dry-erase ink, and may include materials such as polyester eraser felt or terry cloth. The eraser material may be arranged in the form of threads or sheets.
In one embodiment, the fabric may be a woven fabric having elastic warp threads interwoven with weft eraser threads. In another embodiment, the eraser material can transmit pressure, heat, friction, magnetic or other forces to an electronic chalkboard or touchscreen resulting in removal or other alteration to marks or other information contained in, for example, pixels on the electronic chalkboard or screen.
The eraser band 102 may include one or more layers of fabric. In one embodiment, the eraser band 102 may be formed as a continuous tube, such that the eraser band 102 has a totally enclosed inner cavity that extends around the circumference of the eraser band 102. In various embodiments, the eraser band 102 may include multiple layers of fabric that may be the same or different. In one embodiment, the eraser band may include an inner layer of fabric and an outer layer of fabric. The inner layer of fabric may be formed in such a way as to minimize the scattering of particulate matter, such as chalk dust, and prevent the particulate matter from getting onto a user's hands. In one embodiment, the inner fabric may be formed of a smaller thread and/or use a tighter weave than the outer fabric such that the inner fabric is less permeable by particulate matter. The outer fabric may use a larger thread and/or use a looser weave such that the outer fabric more easily removes erasable marks.
In one embodiment, such as the embodiment shown in
In another embodiment, the eraser band may include thicker or thinner material. The thickness can vary based on the components of the material and/or the number of layers of materials used. In one embodiment, the eraser band may have thicker material in an area that will cover the palm and back of the hand and thinner material elsewhere on the eraser band. For example, the material in the area adapted to cover the palm and back of the hand will vary in thickness from about 1 mm to about 20 mm, more preferably from about 5 mm to about 15 mm, and most preferably about 12 mm. Other portions of the eraser band may vary in thickness from about 1 mm to about 10 mm, more preferably from about 2 mm to about 7 mm, and most preferably about 5 mm.
As shown in the embodiments of
In the embodiment shown in
The methods and devices described above illustrate preferred methods and typical devices of many that could be used and produced. The above description and drawings illustrate embodiments, which achieve the objects, features, and advantages of the present invention. However, it is not intended that the present invention be strictly limited to the above-described and illustrated embodiments. For example, the methods of erasing should not be limited to those illustrated in the drawings. Additionally, any modifications, though presently unforeseeable, of the present invention that come within the spirit and scope of the following claims should be considered part of the present invention.
This application claims priority to U.S. provisional patent application 60/976,895, filed Oct. 2, 2007, the entirety of which is hereby incorporated by reference.
Number | Date | Country | |
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60976895 | Oct 2007 | US |