Patent ID: 6199323
Filing Date: 2001-03-13
Classification: E06B

Abstract:
A double-hung window structure comprising:a) an upper window and a lower window within a window frame; said upper window having left and right side stiles, a top rail, and a meeting rail for forming said upper window;b) said upper window having therein a plurality of horizontal and vertical mutton members for forming a plurality of window openings with each having a window pane therein; said horizontal and vertical mutton members being interlocked by half-lap joints;c) said lower window having left and right side stiles, a meeting rail, and a bottom rail for forming said lower window;d) said lower window having therein a plurality of horizontal and vertical mutton members for forming a plurality of window openings with each having a window pane therein; said horizontal and vertical mutton members being interlocked by half-lap joints;e) said window frame having left and right frame jambs, an upper header, and a sill for forming said window frame; said frame jambs having upper and lower vertical window frame tracks, respectively, therein; said upper header having an upper horizontal window track therein; and said sill having a lower horizontal window track therein;f) first sealing means located between said right stile of said upper window and said right jamb of said window frame and includes a first rigid metal weatherstripping seal and a first pair of flexible channel compression weatherstripping seals clad in a plastic urethane foam; second sealing means located between said left stile of said upper window and said left jamb of said window frame and includes a second rigid metal weatherstripping seal and a second pair of flexible channel compression weatherstripping seals clad in a plastic urethane foam; third sealing means located between said right stile of said lower window and said right jamb of said window frame and includes a third rigid metal weatherstripping seal and a third pair of flexible channel compression weatherstripping seals clad in a plastic urethane foam; and fourth sealing means located between said left stile of said lower window and said left jamb of said window frame and includes a fourth rigid metal weatherstripping seal and a fourth pair of flexible channel compression weatherstripping seals clad in a plastic urethane foam;g) fifth sealing means located between said top rail of said upper window and said upper window track of said upper header of said window frame;h) sixth sealing means located between said meeting rail of said upper window and said meeting rail of said lower window;i) seventh sealing means located between said bottom rail of said lower window and said lower window track of said sill of said window frame.