Patent ID: 9675147
Date: 2017-06-13
CPC Classifications: A45C,B65D,G06F,H04B,H05K

Claim:
1. A method comprising: providing a first portion of a cover for a tablet computer having first, second, third, and fourth edges, wherein the first and third edges extend in a first direction and are opposite to each other, and the second and fourth edges extend in a second direction and are opposite to each other, the second direction is transverse to the first direction, the first edge is longer than the second edge, the first and second edges meet at a first corner, the second and third edges meet at a second corner, the third and fourth edges meet at a third corner, and the fourth and first edges meet at a fourth corner; forming an intersection point of five fold lines in the cover, wherein the intersection point is positioned closer to the first edge than the third edge; forming a first fold line that extends from a first position on the first edge to the intersection point; forming a second fold line that extends from a second position on the first edge to the intersection point; forming a third fold line that extends from a third position on the first edge to the intersection point, wherein the first position is a first distance from the first corner, the second position is a second distance from the first corner, the third position is a third distance from the first corner, and the third distance is longer than the second distance, and the second distance is longer than the first distance; forming a fourth fold line that extends from the second corner to the intersection point, wherein a fourth position is on a line of the third edge, a fourth distance extends from the fourth position to an intersection of the fourth fold line with the line of the third edge; forming a fifth fold line that extends from the third corner to the intersection point; providing a first polygon having sides formed by the third edge, fourth fold line, and fifth fold line, and there are no fold lines in the first polygon; providing a second polygon having sides formed by the first edge, first fold line, and second fold line; providing a third polygon having sides formed by the first edge, second fold line, and third fold line; providing a fourth polygon having sides formed by the second edge, first fold line, and fourth fold line; providing a fifth polygon having sides formed by the fourth edge, third fold line, and fifth fold line; in the fourth polygon, forming a first vertex having a first radius of curvature and a second vertex having a second radius of curvature, wherein the first radius of curvature is greater than the second radius of curvature, the first vertex is closer to the first edge than the third edge, and the second vertex is closer to the third edge than the first edge, as a result of the first radius of curvature being greater than the second radius of curvature, the first distance is greater than the fourth distance, the first corner comprises a first arc having a third radius of curvature that results in the first corner being a rounded corner, the second corner comprises a second arc having a fourth radius of curvature that results in the second corner being a rounded corner, and the second arc has the same radius of curvature as the first arc, the second corner is between the fourth position on the third edge and a fifth position on the second edge, the third edge is joined to the second edge by the second arc, and the third radius of curvature is greater than the first radius of curvature and the second radius of curvature, the fourth corner comprises a third arc having a fifth radius of curvature that results in the fourth corner being a rounded corner, and the third arc has the same radius of curvature as the first arc, and the third corner comprises a fourth arc having a sixth radius of curvature that results in the third corner being a rounded corner; and providing a flap portion, coupled to the third edge of the cover, wherein a length of the flap portion extending in the first direction from a first flap portion edge to a second flap portion edge is less than a length of the third edge of the cover, the first flap portion edge does not extend in the first direction toward the second edge beyond the intersection of the fourth fold line with the third edge, the flap portion comprises a closed polygonal shape, and the second vertex is closer to the flap portion than is the first vertex.