US 7,320,637 B2 | ||
Filter window adapter unit | ||
Nicholas L. Lack, 90 Spyglass Cir., Palos Heights, Ill. 60463 (US) | ||
Filed on Nov. 28, 2005, as Appl. No. 11/286,826. | ||
Prior Publication US 2007/0135034 A1, Jun. 14, 2007 | ||
Int. Cl. B60J 1/20 (2006.01); B60H 3/06 (2006.01); E06B 7/02 (2006.01) |
U.S. Cl. 454—96 [454/97; 454/196] | 10 Claims |
1. A filter window adapter unit adapted for use with a main split-sash window of a school bus, said adapter unit comprising:
a mounting frame adapted to be installed over the main split-sash window of the school bus and including a top frame member,
opposed side frame members, and a bottom frame member all formed integrally together to define an adapter window opening;
an outer track portion being formed in said opposed side frame members and extending between said top and bottom frame members;
an inner track portion being formed in said opposed side frame members adjacent to said outer track portion and extending
between said top and bottom frame members;
an inner sash disposed fixedly in a lower position in said inner track portion and carrying a pane of glass;
an outer sash disposed movably in said outer track portion and carrying an air filter; said outer sash being raised upwardly
so as to cover a main window opening in the school bus when the main split-sash is opened;
said air filter being dimensioned with a width and a height so as to cover the main window opening in the school bus;
said air filter being formed of an activated carbon filter type which has relative adsorptive ability of diesel fumes;
said mounting frame being formed with a plurality of openings which are aligned with corresponding openings in a frame of
the main window opening of the school bus for receiving mounting means therethough so as to install said adapter unit over
the main split-sash window of the school bus; and
said air filter preventing the diesel fumes from the school bus from entering into the interior thereof.
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