Lift-off shoe system for tilt window

Details Lift-off shoe system for tilt window Lift-off shoe system for tilt window

1989-10-17

1990-07-17

Kannan, Philip C.

Movable or removable closures

Mounted for optional movements

Pivot mounted on sliding member; e.g., slide-stile

49446, 49453, 49506, E05D 1522

Patent

active

049412850

ABSTRACT:
A lift-off shoe system uses non-locking sash support shoes (30) movable vertically and spring biased upwardly in a tilt window. Sash pins (25) have heads (26) that interlock with open top slots (31) in sash shoes (30) so that the sash pins are removable from the shoes only by lifting the pins vertically from above the uppermost position of the shoes. This simplifies the shoes, eliminates damage caused by shoe-locking mechanisms, and makes sash removal and replacement simple and convenient.

REFERENCES:
patent: 3399490 (1968-09-01), Hettinger
patent: 3434237 (1969-03-01), Love
patent: 3482354 (1969-12-01), Trout
patent: 3611636 (1971-10-01), Trout
patent: 3789549 (1974-02-01), Yip
patent: 3797168 (1974-03-01), Trout
patent: 4068406 (1978-01-01), Wood
patent: 4446654 (1984-05-01), Schoolman et al.
patent: 4452012 (1984-06-01), Deal
patent: 4570382 (1986-02-01), Suess
patent: 4799333 (1989-01-01), Westfall et al.

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