Window assembly with safety catch for vertically sliding sash

Details Window assembly with safety catch for vertically sliding sash Window assembly with safety catch for vertically sliding sash

1996-09-13

1998-01-06

Redman, Jerry

Movable or removable closures

With safety brake or catch

E05D 1300

Patent

active

057041660

ABSTRACT:
A window assembly with a safety catch comprises a manually movable window sash which normally slides between a raised and a fully lowered position within a surrounding window frame. A weight is connected to the sash by a cable which counter-balances weight of the sash. The safety catch prevents downward falling of the sash to the fully lowered position in the event of breakage of the cable. The safety catch comprises a sash block spaced below the weight and clear of the sash when the cable is intact and the weight is positioned to fall if released from the sash to move the sash block to a blocking position which holds the sash above its fully lowered position.

REFERENCES:
patent: 4080757 (1978-03-01), Westerman
patent: 4604828 (1986-08-01), Baarse
patent: 4696375 (1987-09-01), Matthews et al.
patent: 4914862 (1990-04-01), Gregory
patent: 4956938 (1990-09-01), DeMent
patent: 5291686 (1994-03-01), Sears et al.

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