Patent ID: 7891937

Claim:
A method for holding and transporting thin planar objects, comprising the steps of: providing a cassette, said cassette comprising: a substantially open front side; two side panels positioned opposite and parallel to each other with a plurality of elongated opposing slots extending horizontally along the inner surface of each of said side panels for supporting thin planar objects along a portion of the perimeter of said objects; an expandable, sliding bar assembly providing connection between said side panels on the bottom side of the cassette; an adjustable length panel providing connection between said side panels on the cassette top side; and a spring-loaded locking means for locking the adjustable length panel at one of two predetermined lengths; providing a thin planar object of a first dimension; determining that the length of the adjustable length panel setting is suitable for the cassette to holding and transporting a thin planar object of the first dimension; and loading said thin planar object into said open front side of said cassette such that the perimeter of said object is supported by said elongated opposing slots.