Title of Invention

AN IMPROVED EXPANDABLE BOOK COVER

Abstract

An improved and expandable book cover adapted for covering books or like articles of varying sizes. The said improved expandable book cover comprises - a. a hexagonal shaped elastic fabric flat jacket having a front cover and a back cover; b. a cylindrical shaped spine area forming middle part of said hexagonal shaped elastic fabric flat jacket joining said front cover and said back cover; c. a lateral pocket shaped aperture to accommodate / receive said front cover of the book; and d. a lateral pocket shaped aperture to accommodate / receive said back cover of the book.

Full Text

AN IMPROVED EXPANDABLE BOOK COVER FIELD OF THE INVENTION The present invention relates generally to a protective and an elastic jacket for books. The invention particularly relates to an improved expandable book cover or jacket made from four way expandable or stretchable knitted fabric to cover books of varying sizes within a reasonable range. DESCRIPTION OF PRIOR ART The use of book covers has been known since many years. A variety of book covers have been devised for protecting and preserving books from dust and soil from deterioration. Most of the conventional book covers have utilized either paper, leather or cloth materials for protecting books from external dirt and moisture. While there may be some advantages of using leather or plastic based book covers such as ease of cleaning over time, such book covers are not only expensive, it has other disadvantages like it tends to crack at corners or in areas where heat seals have been formed, due to stress which may thus result in material fatigue besides wear and tear. On the other hand, paper and cloth based book covers are less expensive but tends to get dirty and starts sagging at the corners and edges over use and stresses. Another type of book cover is also known where said cover, is made of glossy printed material made of expensive paper cover and to make it attractive, often the prints are made with fanciful inscription including the name of the book, the author and also some times diagrams. A book lover would like to maintain this cover page which is why the book cover is being used for all types of books which varies in size and shape. Thus most of the existing book covers are not impervious to material fatigue and tend to wear out fast. Additionally, existing book covers / jackets made of paper, leather or cloth are not stretchable / flexible and are hence not adjustable to varying sizes of books. Thus, existing book covers suffer from an inherent limitation whereby they have to be custom made to a pre determined size of the book. Consequently, known book covers cannot be used for more than one size of books and more than once. One of the objects of the present invention is to mitigate the drawbacks of the conventional book covers. A further object of the present invention is to have a book cover which bears more strength and does not suffer from easy wear and tear. A still further object of the present invention is to provide a book cover which is made of four way stretchable or expandable material preferably such material as knitted fabric. A still further object of this invention is to avoid a book cover which is much less expensive compared to known long lasting book covers available. SUMMARY OF THE INVENTION The improved expandable and stretchable, preferably knitted book cover, according to the present invention, is a hexagonal shaped book cover stitched such that it has a middle saddle or spine area which consists of a cylindrical channel portion joining the front and back cover portions of the book, thus having two lateral apertures like pockets to accommodate the front and back covers of a book. The said book cover is made of four way expandable or stretchable materials such as synthetic materials like nylon, viscose, Lycra or spandex knitted fabric. In another embodiment of the invention, there is provided an improved book cover which is less prone to material fatigue than the existing book covers /jackets Still another embodiment of the present invention is to provide a book cover which is made of four way stretchable or expandable material preferably such material as knitted fabric so as to cover closely and tightly fits on the book. A further embodiment of the invention is to provide a four way expandable / flexible book cover with a capability of covering books of varying sizes within a reasonably specified range. Thus the present invention provides an improved expandable book cover which is devoid of all drawbacks of the conventional book covers. In another object of this invention is to provide a book cover which is cost-effective compared to known book covers, at the same time long lasting book covers and is economically significant. These and other objects and embodiments of the present invention will become apparent upon a further reading of the following description with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows a known typical book cover / jacket made of paper / leather / cloth based materials. Figure 2 shows perspective view showing the improved four way expandable book cover according to the present invention. Figure 3 is a partial cross sectional view of the improved expandable book cover according to the present invention having alternative stitching showing two pockets like apertures to accommodate the front and back covers of the book. DETAILED DESCRIPTION OF THE INVENTION With reference to the accompanying drawings, the conventional book cover ordinarily comprises a rectangular piece of paper or like material comprising essentially a pair of horizontal fold lines (10, 10A) and another pair of perpendicular fold lines (20, 20A) as shown in Figure 1 of the drawings. The said book cover is also provided with a middle perpendicular border line (30) the either end of which is cut or required to be folded inside at two ends (40, 40A). For a wearing of the book (not shown), the cover is manually folded at the horizontal fold lines (10, 10A) and perpendicular fold lines (20, 20A). It is also necessary that the central fold line (30) is cut at the two ends thereof (40, 40A) in a manner as shown to accommodate the book so that the fold lines can be suitably folded to cover the book. Further to make the cover compact external material like adhesive or gum tape is generally used. It must be appreciated that once such book cover made of paper as illustrated in Figure 1 is used, it can not be reused for another book, some or particularly of different size or thickness without tearing the book cover. Therefore, it becomes imperative to change the book cover completely when it becomes necessary and such is not a reusable book cover. The present invention unlike the conventional book cover has a predetermined shape and configuration as illustrated in Figure 2. The expanded view of the new book cover comprises a hexagonal shape having four inclined edges namely (10, 15, 20 and 25) and two flat edges (30 and 35). The new book cover has multiple stitching along its two axes X and Y. Along the X axis; there is a rectangular stitching along the lines (40,40') and (50, 50'). The inner rectangular (60) is further stitched at points (61) and (63). The hexagonal main body is provided with a cut along the Y axis at its centre in a substantially 'U' shaped manner (40, 40'). The main body before stitching gets four folds along four lines connecting points (61, 62), (62, 63), (63, 64) and (64, 61). The hexagonal main body is provided with stitching between the lines (61, 65), (62, 65), (63, 65') and (64, 65'). The inner rectangular portion of the book cover is further stitched between the points (65, 66) and (65' and 66'). After this hexagonal book cover undergoes three-step operation, namely, cutting, folding and stitching in sequence, it can accommodate a book through its central hole marked (70) and lateral pocket like two apertures. The top and the bottom covers of a book can be conveniently inserted through the hole (70) as marked in the Figure 2. The book cover as described herein above with reference to the drawings can be modified even by stitching between the points (61, 66) and (62, 66) instead of a straight line by a curved line. Similarly the straight line stitching between (64, 66') and (63, 63') can be modified or changed to curved line stitching to hold the book cover in its shape so that the inner pocket (50) can accommodate a book conveniently. Since the material of book cover is made of four way expandable / stretchable fabrics, books of different sizes can be conveniently and tightly covered without altering the stitching or cutting of the new book cover. As illustrated in Figure 2, the book cover of present invention is preferably made of four way expandable or stretchable knitted fabric. This fabric can be made of synthetic material like nylon, viscose, Lycra and spandex etc. Use of an expandable material offers a few distinct advantages over existing book covers. Firstly, the elasticity of the material ensures that the book cover is retained tightly and uniformly over the book. Secondly, the elasticity of the material allows the book cover to be used on books of varying sizes within a substantially wide range and thus one book cover can be re-used on different books of reasonably varying sizes. Thirdly, if the improved and expandable book cover is made of synthetic materials such as nylon, viscose, Lycra or spandex then the said material, being water resistant, offers a higher degree of protection than ordinary paper / leather / cloth based materials In a preferred embodiment, the stretchable / flexible material is stitched with elastic threads such that when the fabric stretches tightly over to cover the book, the seams stretch with the fabric and wear and tear of the seams is reduced. While other advantages may be intrinsic to the cloth book cover and method as herein disclosed, it is to be understood that the present invention is not limited to the sole embodiments described above, but encompasses any and all embodiments within the scope of the claims of the invention. We claim: 1. An improved and expandable book cover adapted for covering books or like articles of varying sizes, comprising: a. a hexagonal shaped elastic fabric flat jacket having a front cover and a back cover; b. a cylindrical shaped spine area forming middle part of said hexagonal shaped elastic fabric flat jacket joining said front cover and said back cover; c. a lateral pocket shaped aperture to accommodate / receive said front cover of the book; and d. a lateral pocket shaped aperture to accommodate / receive said back cover of the book; 2. An improved and expandable book cover as claimed in claim 1, wherein said book cover is made from stretchable / flexible materials such as synthetic materials namely, nylon, viscose, Lycra spandex knitted fabric or any other material having the same elasticity. 3. An improved and expandable book cover as claimed in claim 1, wherein said book cover is made from stretchable / flexible materials which are water resistant. 4. An improved and expandable book cover as claimed in claim 1, wherein the said book cover is made from four way expandable or stretchable / flexible materials so as to accommodate / receive books of varying sizes, adjustable by the elasticity of the material used. 5. A method of stitching a book cover comprising the steps of - a) cutting a material selected from nylon, viscose, Lycra, spandex knitted fabric to form a hexagonal shaped piece to provide a front cover and a back cover of a book; b) stitching said hexagonal piece so as to form a middle spine part in between said front cover and said back cover; and c) further stitching said hexagonal piece of step (b) to form two lateral pockets to accommodate said front and back covers of the book. An improved and expandable book cover adapted for covering books or like articles of varying sizes. The said improved expandable book cover comprises - a. a hexagonal shaped elastic fabric flat jacket having a front cover and a back cover; b. a cylindrical shaped spine area forming middle part of said hexagonal shaped elastic fabric flat jacket joining said front cover and said back cover; c. a lateral pocket shaped aperture to accommodate / receive said front cover of the book; and d. a lateral pocket shaped aperture to accommodate / receive said back cover of the book.

Documents:

00664-kol-2008-abstract.pdf

00664-kol-2008-claims.pdf

00664-kol-2008-correspondence others.pdf

00664-kol-2008-description complete.pdf

00664-kol-2008-drawings.pdf

00664-kol-2008-form 1.pdf

00664-kol-2008-form 2.pdf

00664-kol-2008-form 3.pdf

00664-kol-2008-gpa.pdf

664-KOL-2008-ABSTRACT 1.1.pdf

664-KOL-2008-ASSIGNMENT.pdf

664-KOL-2008-CANCELLED PAGES 1.1.pdf

664-KOL-2008-CLAIMS 1.1.pdf

664-KOL-2008-CORRESPONDENCE OTHERS 1.1.pdf

664-KOL-2008-DESCRIPTION (COMPLETE) 1.1.pdf

664-KOL-2008-DRAWINGS 1.1.pdf

664-KOL-2008-FORM 1-1.1.pdf

664-KOL-2008-FORM 1.1.pdf

664-KOL-2008-FORM 13.pdf

664-KOL-2008-FORM 2.1.pdf

664-KOL-2008-FORM 3.1.pdf

664-KOL-2008-FORM 6.pdf

664-KOL-2008-PA 1.1.pdf

664-KOL-2008-REPLY TO EXAMINATION REPORT.pdf

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