IP Library Granted Patent US 12687056
Granted Patent B2
US 12687056 · App. 18/821,418 · Granted Jul 21, 2026

Window latch

Inventor: Martasz Smith (Chicago, IL)
E05C17/50E05C2007/007
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Quick Facts
Patent No.
US 12687056
App. No.
18/821,418
Granted
Jul 21, 2026
Kind
B2
Abstract

A window latch member for a window with a first sash and a second sash includes a body having an elongate shape with two ends. The first end includes multiple first openings configured to couple with a window catch. The second end includes multiple second openings configured to couple with a sash lock. The window latch member is retrofit to a window assembly.

Claims (32)

1 . A window latch member for a window comprising:

a body having an elongated shape defining a first end and a second end, the first end comprising a plurality of first openings disposed along a first length of the body, wherein each opening of the plurality of first openings is configured to couple with a window catch of the window, the second end comprising a plurality of second openings disposed along a second length of the body, wherein each opening of the plurality of second openings is configured to couple with a sash lock of the window;

wherein the body is retrofit to the window, the window having a first sash and a second sash, the first sash comprising the window catch and the second sash comprising the sash lock;

wherein each of the plurality of second openings comprises a protrusion extending from an edge of the second opening, the protrusion configured to couple with the sash lock.

2 . The window latch member of claim 1 , wherein the second sash is repositionable between a fully open position and a fully closed position, the plurality of second openings configured to provide a plurality of coupling points for the sash lock to couple the second sash with the body such that the second sash is maintained at an intermediate position between the fully open position and the fully closed position.

3 . The window latch member of claim 2 , wherein:

when the second sash is in the fully open position, an opening is defined between a bottom of the second sash and a lower window sill of the window, a distance of the opening between the bottom of the second sash and the lower window sill having a maximum allowable value; and

when the second sash is in the intermediate position and the sash lock is coupled with a corresponding one of the plurality of second openings, the distance of the opening between the bottom of the second sash is less than the maximum allowable value and is substantially equal to a height of an air conditioning unit.

4 . The window latch member of claim 3 , wherein the plurality of second openings are spaced to define a plurality of different intermediate positions, at least two of the plurality of different intermediate positions resulting in different values of the distance configured to accommodate a plurality of different sized air conditioning units.

5 . The window latch member of claim 1 , wherein the first sash is repositionable between a fully open position and a fully closed position, the plurality of first openings configured to provide a plurality of coupling points for the window catch to couple the first sash with the body such that the first sash is maintained at a position between the fully open position and the fully closed position.

6 . The window latch member of claim 1 , wherein the protrusion is offset from a centerline of the second opening.

7 . The window latch member of claim 1 , wherein the protrusion extends perpendicularly from a first edge.

8 . The window latch member of claim 1 , wherein each of the plurality of first openings comprises a curved member extending along a width of the first openings, the curved member configured to couple with the window catch.

9 . A window assembly comprising:

a first sash and a second sash, wherein the first sash comprises a window catch and the second sash comprises a sash lock; and

a window latch member comprising a body having an elongated shape defining a first end and a second end, the first end comprising a plurality of first openings disposed along a first length of the body, wherein each opening of the plurality of first openings is configured to couple with the window catch, the second end comprising a plurality of second openings disposed along a second length of the body, wherein each opening of the plurality of second openings is configured to couple with the sash lock, wherein each of the plurality of first openings comprises a curved member extending along a width of the first openings, the curved member configured to couple with the window catch.

10 . The window assembly of claim 9 , wherein the second sash is repositionable between a fully open position and a fully closed position, the plurality of second openings configured to provide a plurality of coupling points for the sash lock to couple the second sash with the body such that the second sash is maintained at an intermediate position between the fully open position and the fully closed position.

11 . The window assembly of claim 10 , wherein:

when the second sash is in the fully open position, an opening is defined between a bottom of the second sash and a lower window sill of the window assembly, a distance of the opening between the bottom of the second sash and the lower window sill having a maximum allowable value; and

when the second sash is in the intermediate position and the sash lock is coupled with a corresponding one of the plurality of second openings, the distance of the opening between the bottom of the second sash is less than the maximum allowable value and is substantially equal to a height of an air conditioning unit.

12 . The window assembly of claim 11 , wherein the plurality of second openings are spaced to define a plurality of different intermediate positions, at least two of the plurality of different intermediate positions resulting in different values of the distance configured to accommodate a plurality of different sized air conditioning units.

13 . The window assembly of claim 9 , wherein the first sash is repositionable between a fully open position and a fully closed position, the plurality of first openings configured to provide a plurality of coupling points for the window catch to couple the first sash with the body such that the first sash is maintained at a position between the fully open position and the fully closed position.

14 . The window assembly of claim 9 , wherein each of the plurality of second openings comprises a protrusion extending from an edge of the second opening, the protrusion configured to couple with the sash lock.

15 . A method for installing a window latch member on a window assembly comprising a first sash and a second sash, the method comprising:

removing an upper window rail of the second sash from a window frame;

installing a window catch on the first sash with a first opening disposed on a length of a body of the window latch member;

installing the upper window rail of the second sash to the window frame;

translating the first sash and the second sash along the window frame to a desired position for latching; and

coupling a sash lock on the second sash with a second opening disposed on the length of the body of the window latch member;

wherein the first opening is one of a plurality of first openings disposed along the length of the body, wherein each of the plurality of first openings comprises a curved member extending along a width of the first opening, the curved member configured to couple with the window catch; and

wherein the second opening comprises a protrusion extending from an edge of the second opening, the protrusion configured to couple with the sash lock.

16 . The method of claim 15 , wherein the second opening is one of a plurality of second openings disposed along the length of the body.