초록 ▼

A window sash member is composed of a pair of rail members and a pair of vertical sash members or stiles which may each include a framing element having a unique cross-sectional configuration. The sash member is so constructed as to permit replacement of glass panes without destroying the integrity

A window sash member is composed of a pair of rail members and a pair of vertical sash members or stiles which may each include a framing element having a unique cross-sectional configuration. The sash member is so constructed as to permit replacement of glass panes without destroying the integrity of the frame. This is accomplished by removing a series of glazing strips. A hollow defined within the framing element provides the rails with a reinforcing member which has fins to minimize undesired thermal conduction across the frame. A downwardly open recess is defined within the framing element so as to permit it to be employed with a wide variety of window frame elements and adapting it for use in a wide variety of types of windows. The rails are preferably joined to the stiles by welding. The sash framing element is particularly adapted to be used with insulated windows having two or three panes of glass which define a thermally insulating dead air space therebetween. The sash framing elements are preferably composed of a synthetic resinous material.

대표청구항 ▼

A window sash member comprising a pair of rails members, composed of a resinous plastic material, fixedly secured to a pair of stile member, composed of a resinous plastic material, to define a unitary sash frame; said rail members each having a first longitudinally extending hollow chamber; reinfor

A window sash member comprising a pair of rails members, composed of a resinous plastic material, fixedly secured to a pair of stile member, composed of a resinous plastic material, to define a unitary sash frame; said rail members each having a first longitudinally extending hollow chamber; reinforcing means composed of a material different from said rail members disposed with said first hollow chamber; the joints between said rail members and said stile members being mitered welded joints; said rail member except for the joint area having substantially the same cross-sectional configuration throughout their longitudinal extent; said rail members and said stile members each having a pair of generally parallel sidewalls, a first said sidewall being of greater height than a second said sidewall; said rail members having a first transverse wall extending from said first sidewall to said second sidewall; said rail members having a second transverse wall spaced from and oriented generally parallel with respect to said first transverse wall; said first and second sidewalls and said first and second transverse walls cooperating to define said first hollow chamber; a third transverse wall means being oriented generally parallel with respect to said and second transverse wall means; said third transverse wall means extending from said first sidewall and terminating short of said second sidewall; said second transverse wall being disposed closer to said third transverse wall than is said first transverse wall; interior wall means oriented generally parallel to said first sidewall means connected said second and said third transverse wall; and said interior wall means cooperating with said second and third transverse walls and said first sidewall to define a second hollow chamber.