US 4,356,667 A · Tilt latch for slidable window sash

Abstract

A tilt latch for a sliding window sash comprising a unitary molded plastic article including a base portion mountable on the top of a window sash, a body portion having a projecting nose for insertion in a channel of a window frame, and a narrow thin portion hingedly connecting the body to the base for enabling movement of the body between a closed position overlying the base and an open position. Two such latches are respectively mounted on opposite sides of a window sash; when the latch bodies are in the closed position, their noses are respectively received in vertical channels of the window frame for retaining the sash in the frame, while movement of the latch bodies to open position permits the sash to be tilted out of the frame. Each latch is provided with a manually releasable lock, such as a pin projecting from the base and received with interference fit in an opening of the body, for retaining the body in the closed position.

Claims13

Dependent claims

A tilt latch for releasably retaining a vertically slidable window sash in a window frame having two facing vertical channels extending along the sides of the sash for respectively receiving a pair of the latches carried on the sash, the sash being tiltable out of the frame upon withdrawal of the latches from the channel, said tilt latch comprising:

(a) a base mountable on the top of a window sash adjacent a side thereof;
(b) a body having a free end including a nose insertable in a window frame channel;
(c) a hinge interconnecting the base and body for enabling angular movement of the body between a closed position in which the body overlies the base with the nose disposed to be received in a window frame channel, and an open position in which the nose is disposed to be clear of the channel;
and
(d) a projection, extending from said body, through which manual force can be exerted to move said body from said closed position to said open position, said projection being disposed to be manually engageable when said tilt latch base is mounted on the top of a window sash and said nose is received in an adjacent vertical channel of a window frame.

2 more elements

Dependencies are inferred from the claim text.

Tilt latch for slidable window sash

Life of this patent

Tilt latch for slidable window sash

Life of this patent

Abstract

Claims13