Patent ID: 7024821

Claim:
A window that can be opened in multiple manners, comprising: a frame assembly configured for fastening in a window opening, and including: a pair of parallel horizontal frame sections, spaced apart from each other by a distance, each having a predefined length; and a pair of parallel vertical frame sections each having a predefined length and disposed between the pair of horizontal frame sections to form an enclosed frame; at least two sash assemblies each configured for receiving a glass medium and disposed within the frame assembly to facilitate closing and opening of the window, each said sash assembly having: a pair of rails for matching with the pair of horizontal frame sections, and at least two stiles for matching with said pair of vertical frame sections, and arranged to be perpendicular to the rails to form an enclosed sash; wherein each said horizontal frame section includes two parallel horizontal frame portions, each of which includes a cavity with a top opening, a guide track provided on a bottom slab of the horizontal frame portion, and a pair of subsidiary guide tracks each located on a respective side of the guide track and mounted onto one of a slant slab and a top of the horizontal frame portion; each said sash assembly includes a pair of sliding pipe assemblies, each said sliding pipe assembly including a sliding pipe configured for sliding in a respective one of the cavities; each said sliding pipe includes: a roller seat fastened to the sliding pipe via a plurality of location holes on a top of said sliding pipe, wherein an opening is provided on a bottom of the roller seat, and a pair of sliding slots are respectively provided in two side sections of the roller seat and are aligned with each other; a roller support mounted in the roller seat and fastened to said sliding pipe via at least one of said location holes on the top of said sliding pipe, wherein an opening is provided on a bottom of said roller support, and mounting holes are provided in side sections of said roller support and are aligned with said sliding slots; a main roller engaged with a respective one of the guide tracks and including a pivot pin fastened in said mounting holes and slidably positioned within said sliding slots; two subsidiary rollers engaged with the pair of subsidiary guide tracks, and symmetrically provided on an outside of the side sections of the roller seat and rotatable about a horizontal axis vertically aligned with a horizontal rotating axis of said main roller; and a regulator, penetrating through the top of said sliding pipe and the roller seat and pressing on a top of the roller support for adjusting a vertical separation between the main roller and the subsidiary rollers; and a hinge assembly, fastened on said sliding pipe for pivoting a respective one of the sash assemblies.