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Removable window assembly
| Details |
Inventors: Aho, Jack R.; Dingman, Roger J.; Gee, Larry R.; Szlachta, Leon R.;
Assignee: General Motors Corporation (Detroit, MI)
Primary Examiner: Gilreath; Stanley N.
Assistant Examiner: Sohacki; Lynn M.
Attorney, Agent or Firm: Griffin; Patrick M.
An improved window assembly of the type that has a molded frame adhesively joined to the flange of the vehicle window opening includes means allowing it to be easily removed without significant damage and with access from only interior of the vehicle, as well as to be reinstalled easily. A cutting wire held in a groove surrounding the location of the adhesive bead has its terminal ends accessible from inside the vehicle. To remove the window, the wires are pulled from the interior of the vehicle, pulling the wire from the retention groove, past a flexible adhesive dam, and cutting completely through the adhesive bead. The window assembly may be combined with removable and reusable mechanical fasteners to both temporarily retain the window assembly as the adhesive cures, and to be reused to reinstall the window after its removal. |
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DETAILED DESCRIPTION The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1.
An improved window assembly of the type adapted to be adhesively installed to a flange defining a window opening in a vehicle or the like, said window assembly having a molded frame with an outer surface facing the outside of the vehicle, said frame further having a bonding portion adapted to be spaced from the flange and bonded thereto by a curable adhesive bead, said improvement providing means for allowing the installed window assembly to be easily removed without significant damage with access only from the interior of the vehicle, and to be reinstalled after removal, comprising; a cutting wire, a wire retention groove defined in the frame and extending completely around the bonding portion between said bonding portion and the outer surface of the frame, said groove being sized so that said cutting wire is tightly held in said groove and thereby retained to said molded frame as a unitary structure prior to said window assembly being adhesively installed, said groove also serving to locate said wire spaced from said flange by less than said bonding portion after the window assembly is installed, an adhesive dam integral with the frame and extending completely around the wire retention groove between said wire retention groove and the bonding portion, said adhesive dam being adapted to engage the window opening flange when the window assembly is installed to prevent the adhesive bead from moving past the wire retention groove toward the outer surface of the frame, said dam also being sufficiently resilient to flex without damage as the cutting wire is pulled beneath it, and flexible mechanical fasteners adapted to snap past said flange and temporarily retain said window assembly to said flange until said adhesive bead cures, whereby the installed window assembly may be removed by pulling the terminal ends of the cutting wired from the vehicle interior, thereby pulling said cutting wire from the wire retention groove between the flexing adhesive dam and the flange to flex said flexible fasteners away from said flange and to completely cut through the adhesive bead without significant damage to the frame and flexible fasteners, said window assembly thereupon being reinstallable by applying a new bead of adhesive and reusing said flexible fasteners
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