Filter and dust collecting bag for upright vacuum cleaners

Claim 1

A filter and dust collecting device for vacuum cleaners, said device coMprising an air permeable bag, said bag including front and rear walls, side walls and closed opposite end walls defining an interior compratment, an air conducting tube, securing means longitudinally attaching said tube externally along an outer surface of said rear wall of said bag in a side-to-side relationship with one upper end portion of said tube disposed adjacent to one upper end portion of said bag and an opposite lower end portion of said tube disposed adjacent to an opposite lower end portion of said bag, said one upper end portion of said tube being provided with an aperture disposed in confronting relationship with a similar aperture provided in said rear wall of said one upper end portion of said bag, coupling means extending through said apertures for passing dust laden air from said tube through said coupling means into said interior compartment of said bag, said coupling means including flange means disposed within said one upper end portion of said tube to hold said coupling means securely against an upper inner surface of said tube, said coupling means being provided with flange plate means securely fitted on said coupling means and secured to an upper inner surface of said rear wall of said bag to securely position said coupling means relative to said one upper end portion of said bag, said coupling means further including attachment means disposed within said interior compartment of said bag to receive an air permeable removable liner into which the dust laden air passes, said attachment means extending toward said front wall of said one upper end portion of said bag, said bag being of selected dimensions to accommodate the liner therein, said bag being provided with opening and closing means disposed longitudinally along said front wall from said one upper end portion of said bag to said opposite lower end portion of said bag to permit insertion and removal of the liner therein for connection and removal from said attachment means, said opening and closing means extending above said coupling means to provide access to said coupling means, and an intake coupling disposed on said opposite lower end portion of said tube for connecting said opposite lower end portion of said tube to a dust laden air outlet port of a vacuum cleaner.