Method and apparatus for bending a glass sheet and an electronic device casing

Abstract

A method of bending a glass sheet includes placing the glass sheet on a support and heating the entire glass sheet to a first viscosity. A band of heat is applied and translated along the selected region of the glass sheet in which a predetermined is to be formed over a time period to form the predetermined in the selected region. The band of heat sectionally heats the selected region to a second viscosity that is lower than the first viscosity. An actuated force is applied to the glass sheet to incrementally form the predetermined bend in the selected region according to the location of the band of heat in the selected region.

1 .- 22 . (canceled) 
     
     
         23 . An electronic device casing, comprising:
 a glass body having a front cover and side bends adjoined to opposite ends of the front cover without physical seams between the front cover and side bends, the side bends being curved and having bend angles larger than 90°, the front cover being flat, the glass body defining a housing for an electronic device.   
     
     
         24 . The electronic device casing of  claim 23 , wherein the glass body further comprises at least one back flap adjoined to at least one of the side bends without a physical seam between the side bend and back flap, the back flap being in opposing relation to the front cover. 
     
     
         25 . The electronic device casing of  claim 24 , wherein the front cover is parallel to the back flap, and wherein the back flap is flat. 
     
     
         26 . The electronic device casing of  claim 25 , wherein bend radiuses of the side bends are different such that the front cover is inclined to the back flap. 
     
     
         27 . The electronic device casing of  claim 23 , wherein the side bends have bend angles of approximately 180°. 
     
     
         28 . The electronic device casing of  claim 23 , wherein the glass body is in the form of a full sleeve. 
     
     
         29 . The electronic device casing of  claim 23 , wherein the glass body is in the form of a fractional sleeve with a back window. 
     
     
         30 . The electronic device casing of  claim 23 , wherein the front cover has a clear aperture for interaction with a display device of the electronic device when the electronic device is arranged in the glass body.