Top hung sliding window assembly

A sliding window assembly comprising:

• A. a frame made up of a head member, a sill member and two side members, said head member including a channel extending therealong on the inside of the frame and defined in part by two downwardly sloping bottom surfaces which terminate in spaced apart relationship to define an opening into the channel;
• B. a stationary panel including a glazing and secured to a first part of the frame;
• C. a sliding panel including glazing and secured to a slider head, said slider head including at least one leg extending into and terminating within the channel in spaced relationship therewith;
• and
• D. a rigid, plastic key secured to the leg within the channel and defined in part by sloping surfaces in mating engagement with the sloping bottom surfaces of the channel so as to permit the sliding panel to slidably move between the first part of the frame and a remaining part thereof.

A heavy duty sliding window assembly comprising:

• A. a fixed metal frame comprising a head extrusion, a sill extrusion and respective side extrusions, the head extrusion including a drip cap extending outward therefrom and a keyway extending substantially the head extrusion length along the underside thereof and including two downwardly extending, sloped surfaces which terminate to define the keyway opening, said sill extrusion including a downwardly sloping surface;
• B. a stationary panel including a corrugated translucent glazing and secured to a first half of the frame;
• C. a sliding frame movable between the first half and a second half of the frame comprising a slider head extrusion, a slider sill extrusion, respective slider side extrusions and a corrugated glazing secured to the slider extrusions, the slider head extrusion including a triangular shaped recess extending along the upper surface thereof;
• and
• D. a rigid plastic key comprising a first end triangularly configured and permanently secured within the slider head recess, a second end having downwardly sloping surfaces positioned in mating and sliding engagement within the keyway and a web section joining the two ends and extending through the keyway opening, said key being the sole means of suspending the sliding frame from the fixed frame.

A sliding window assembly comprising:

• A. a metal frame made up of a head member, a sill member and two side members, said head member including a channel extending therealong on the inside of the frame and defined in part by two downwardly sloping bottom surfaces which terminate in spaced apart relationship to define an opening into the channel;
• B. a stationary panel including a glazing and secured to a first part of the frame;
• C. a sliding panel including glazing and secured to a slider head;
• D. a rigid, plastic key secured at one end to a top of the slider head and positioned at an opposing end in the head member channel, said opposing end defined in part by sloping surfaces in mating engagement with the sloping bottom surfaces of the channel so as to permit the sliding panel to slidably move between the first part of the frame and a remaining part thereof;
• and
• E. means to restrain the sliding panel in the main frame should the sliding panel become disengaged comprising an integral leg extending downward from the head member, an integral leg extending upward from the sill member and respective substantially L-shaped legs extending outward from the sliding panel in over-lapping and spaced relationship from said integral legs.

A sliding window assembly comprising:

• A. a metal frame made up of a head member, a sill member and two side members, said head member including a channel extending therealong on the inside of the frame and defined in part by two downwardly sloping planar bottom surfaces which terminate in spaced apart relationship to define an opening into the channel;
• B. a stationary panel including a glazing and secured to a first part of the frame;
• C. a sliding panel including glazing and secured to a slider head having an elongated upper recess extending substantially the length of an upper surface thereof;
• and
• D. a rigid, plastic key secured at one end in said recess and positioned at an opposing end in the head member channel, said opposing end being substantially triangular and defined in part by sloping planar surfaces in mating engagement with the sloping bottom surfaces of the channel so as to permit the sliding panel to slidably move between the first part of the frame and a remaining part thereof.