Civilian Bullet-Proof Shield

Abstract

A shield has a rectangular body, a first rollerball bearing assembly mounted in a first bracket joined to the body, such that the first bracket extends away from the left vertical edge of the body, a second rollerball bearing assembly mounted in a second bracket such that the second bracket extends away from the right vertical edge of the body, and the spacing between the first and the second rollerball bearing assemblies is greater than the width of the body. The body rests on the rollerball bearing assemblies when standing and a user, is enabled to hold the shield oriented vertically and to move the shield side-to-side, and the user is further enabled to tilt the shield back toward the user, transferring support to wheels rather than the rollerball bearing assemblies, and is then enabled to move the shield forward and backward on the wheels.

1 . A shield, comprising:
 a rectangular body having a height of at least sixty inches, a width of at least twenty-four inches, a front side and a back side, left and right vertical edges, and a topmost edge and a lowermost edge, the body formed of a bullet-resistant material, with a thickness of at least one-eighth inch;   one or more window openings centered on the width of the body and positioned in an upper half of the body;   bullet-resistant glass panes in the one or more windows, enabling a user to see through the body;   handles positioned along edges of the body on the backside;   a first rollerball bearing assembly comprising an upper housing and a rollerball with a portion of the rollerball extending below the upper housing, mounted in a first bracket joined to the body proximate the lowermost edge and the left vertical edge, such that the first bracket extends away from the left vertical edge of the body;   a second rollerball bearing assembly comprising an upper housing and a rollerball with a portion of the rollerball extending below the upper housing, mounted in a second bracket joined to the body proximate the lowermost edge and the right vertical edge, such that the second bracket extends away from the right vertical edge of the body, and the spacing between the first and the second rollerball bearing assemblies is greater than the width of the body; and   two wheels on axles with axes in the direction of the width of the body, the wheels positioned by brackets joined to the backside of the body proximate the lowermost edge, such that with the body vertically oriented and supported on the rollerball bearing assemblies the wheels are proximate the ground or floor surface but not touching;   wherein the body rests on the rollerball bearing assemblies when standing upright, and wherein a user, grasping the handles, is enabled to hold the shield oriented vertically supported on the rollerball bearing assemblies and to move the shield side-to-side on the rollerball of the rollerball bearing assemblies, and wherein the user is further enabled to tilt the shield back toward the user, transferring support to the wheels rather than the rollerball bearing assemblies, and is then enabled to move the shield forward and backward on the ground or floor surface on the wheels.   
     
     
         2 . The shield of  claim 1  further comprising a cushioning pad of flexible, compressible material affixed to the back surface of the body and having openings for the widow openings. 
     
     
         3 . The shield of  claim 1  further comprising an upper handle extended upward from a top surface of the shield body, across more than half the width of the body. 
     
     
         4 . The shield of  claim 1  wherein the handles are cylindrical and oriented substantially vertically. 
     
     
         5 . The shield of  claim 1  wherein the handles are cylindrical and oriented at an angle to vertical of at least fifteen degrees, the top of each handle closer to the shield body. 
     
     
         6 . The shield of  claim 1  wherein the rollerball bearing assemblies each comprise a framework having a polymer ball of at least two inches in diameter turning against ball bearings in the framework. 
     
     
         7 . The shield of  claim 1  further comprising a stand assembly comprising vertical struts pivoted in hinges positioned about midway on the height of the body proximate opposite side edges of the body, the vertical struts joined by a lateral strut, such that the vertical struts may be extended at an angle to the back side of the body to support the shield stationary at an angle to the ground or floor.