Abstract: Systems and methods for manufacturing a vacuum device, such as an electron emitter, that includes a foil exit window palced over and joined to a support grid. In one particular method, the vacuum chamber of an electron emitter has a thin foil forming an exit window at one end. The thin foil may be titanium or any suitable material and the foil will typically enlarge during a bonding process that attaches the foil to the support grid. In one manufacturing process, the support grid is provided with a surface that has contours, typically being smooth recessed surfaces, that the foil once enlarged can lie against as the vacuum pulls the foil against the grid.

Abstract: The present invention disclosed a lightweight, flexible and machine washable convertible organizer tote bag that has three basic carrying portions--a central U-shaped or sling compartment and two side storage panels on either side thereof. The bag also readily converts from its tote bag conformation to a seat cover for use on chairs, chaises, and the like. When configured as a seat cover and placed on the horizontal seat of a chair, chaise, or the like, the side panels extend downward such that each pocket of the combination is positioned for convenient accessibility at the side of the seat. The seat cover easily and conveniently converts into an organizer tote bag by lifting the handles.