초록 ▼

A window assembly for use in mass transit vehicles which allows the quick and easy removal and replacement of transparent sacrificial glazing panels which protect the glazing of the window from vandalism and wear. The window assembly utilizes a sacrificial protective panel and mounting arrangement w

A window assembly for use in mass transit vehicles which allows the quick and easy removal and replacement of transparent sacrificial glazing panels which protect the glazing of the window from vandalism and wear. The window assembly utilizes a sacrificial protective panel and mounting arrangement which allows quick and easy replacement of protective panels on one or both sides of the window assembly, but inhibits removal by non-maintenance personnel such as vandals. The frame of the window assembly incorporates one or more retainers which fit into slots along the interior sides of the window frame and sandwich the glazing between the frame and the retainers. In turn, the retainers are essentially "locked" into position in the frame by an inner protective panel, which significantly inhibits the removal of the retainers from the window assembly when the protective panel is in its desired position against the windowpane. Once the inner protective panel is removed from the window assembly, however, the retainers and glazing can quickly and easily be removed from the frame, allowing the glazing and any remaining protective panels to be quickly and easily removed from the frame.

대표청구항 ▼

A window assembly for use in mass transit vehicles which allows the quick and easy removal and replacement of transparent sacrificial glazing panels which protect the glazing of the window from vandalism and wear. The window assembly utilizes a sacrificial protective panel and mounting arrangement w

A window assembly for use in mass transit vehicles which allows the quick and easy removal and replacement of transparent sacrificial glazing panels which protect the glazing of the window from vandalism and wear. The window assembly utilizes a sacrificial protective panel and mounting arrangement which allows quick and easy replacement of protective panels on one or both sides of the window assembly, but inhibits removal by non-maintenance personnel such as vandals. The frame of the window assembly incorporates one or more retainers which fit into slots along the interior sides of the window frame and sandwich the glazing between the frame and the retainers. In turn, the retainers are essentially "locked" into position in the frame by an inner protective panel, which significantly inhibits the removal of the retainers from the window assembly when the protective panel is in its desired position against the windowpane. Once the inner protective panel is removed from the window assembly, however, the retainers and glazing can quickly and easily be removed from the frame, allowing the glazing and any remaining protective panels to be quickly and easily removed from the frame. k piece. 2. The method of claim 1 wherein said predetermined distance of said elongated aperture from said first straight edge is substantially three and a half inches. 3. The method of claim 1, wherein said first point is spaced about one-eighth of an inch inwardly from said second straight edge. 4. The method of claim 1 wherein said abutment means comprises an elongated ledge extending along said first straight edge. 5. The method of claim 1 wherein said second point is spaced apart about three-eighths of an inch inwardly from said first point, such that said longitudinal dimension between said first point and said second point corresponds to an elongated dimension of a lead point of a carpenter's pencil. 6. The method of claim 5 wherein said elongated aperture has a lateral dimension corresponding to a lateral thickness of said lead point of said carpenter's pencil, said lateral dimension being no greater than about one-fourth of an inch, said elongated aperture having a peripheral edge encompassing said lateral and longitudinal dimensions thereof enabling portions of said peripheral edge to contact and bear against portions of said elongated lead point of said carpenter's pencil to hold said pencil steady when received in said elongated aperture. 7. The method of claim 6 wherein said elongated aperture includes the configuration of a first lateral point and, of a second lateral point, said lateral points being located midway between said first point and said second point of said elongated aperture, each of said first and second lateral points spaced apart a substantially equal distance from, and on opposite sides of, a straight line between said first and second points of said elongated aperture. 8. The method of claim 7 wherein said elongated aperture is in the shape of a diamond.