Double hung sash lock with tilt lock release buttons
AssigneeHWD Acquisition, Inc.
InventorScott D. Albrecht
Life of this patent
Estimating the term…
Abstract
A combination tilt/sash lock for mounting to a window sash rail, the combination including a sash lock and tilt lock being mounted in linear relationship to each other; the tilt lock having a latch element latching to a window frame that is manually movable within a tilt lock housing between a latched position and an unlatched position; the sash lock having a rotatable cam movable by rotating a locking lever between a locked position and an unlocked position; the sash lock locking lever being located in a superimposed linear relationship to and blocking manual movement of the tilt lock in the locked position and allowing movement of the latch element in the unlatched position; and the tilt lock mechanism being movable from a latched position to a disengaged position.
Claims23
A combination tilt/sash lock for mounting to a sash rail of a slideable and tiltable sash window, the combination comprising:
- (a) a first tilt lock mechanism having a tilt lock and a release button, the tilt lock being movable by the release button from a latched position to an unlatched position;
- the latched position including the first tilt lock mechanism preventing the sash from tilting;
- the unlatched position permitting the sash to tilt;
- and
- (b) a sash lock mechanism having a rotatable cam and a locking lever, the rotatable cam being movable by the locking lever between a locked position and an unlocked position;
- the locked position including the sash lock mechanism preventing the sash from sliding;
- the unlatched position permitting the sash to slide;
- (c) the locking lever and the release button being arranged in a superimposed linear relationship when the locking lever is in the locked position such that the locking lever blocks the tilt lock release button from being moved to the unlatched position.
A double-hung window assembly comprising:
- (a) an upper sash having a first and second stiles, a bottom check rail located at the bottom of the upper sash and a first lock keeper located on the bottom check rail;
- (b) a lower sash having first and second stiles and a top check rail located at the top of the lower sash;
- and
- (c) a first combination tilt/sash lock mounted to the lower sash check rail, the combination comprising:
- (i) a first tilt lock mechanism having a tilt lock and a tilt lock release button, the tilt lock being movable by the release button from a latched position to an unlatched position;
- the latched position including the first tilt lock mechanism preventing the sash from tilting;
- the unlatched position permitting the sash to tilt;
- and
- (ii) a sash lock mechanism having a rotatable cam and a locking lever, the rotatable cam being movable by the locking lever between a locked position and an unlocked position, the locked position including the rotatable cam being engaged with the first lock keeper on the upper sash thereby preventing the sash from sliding;
- the unlatched position permitting the sash to slide;
- (iii) the locking lever and the tilt lock release button being arranged in a superimposed linear relationship when the locking lever is in the locked position such that the locking lever blocks the tilt lock release button from being moved to the unlatched position.
A combination tilt/sash lock for mounting to a sash rail of a slideable and tiltable sash window, the combination comprising:
- (a) first tilt lock mechanism having a tilt lock and a tilt lock release button, the tilt lock being movable by the release button from a latched position to an unlatched position;
- the latched position including the first tilt lock mechanism preventing the sash from tilting;
- the unlatched position permitting the sash to tilt;
- (a) a second tilt lock mechanism having a tilt lock and a tilt lock release button, the tilt lock being movable by the release button from a latched position to an unlatched position;
- the latched position including the second tilt lock mechanism preventing the sash from tilting;
- the unlatched position permitting the sash to tilt;
- (c) a sash lock mechanism having a rotatable cam and a locking lever, the rotatable cam being movable by the locking lever between a locked position and an unlocked position;
- the locked position including the sash lock mechanism preventing the sash from sliding;
- the unlatched position permitting the sash to slide;
- and
- (d) a lock housing, the lock housing being connected to and receiving the first tilt lock mechanism, the second tilt lock mechanism, and the sash lock mechanism;
- (e) wherein the combination tilt/sash lock is constructed and configured to prevent the window from tilting out of a window frame unless both release buttons are simultaneously depressed in a linear direction to the unlatched position;
- (f) wherein the locking lever and the tilt lock release button of the first or second tilt lock mechanism are arranged in a superimposed linear relationship when the locking lever is in the locked position such that the locking lever blocks the tilt lock release button from being moved to the unlatched position.
Dependencies are inferred from the claim text.