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US 4,921,287 AGranted
Security door window latch
OwnerEdward Horvath, George Spectorinventors
Life of this patent
Estimating the term…
Abstract
A security latch assembly for a door and window in which the door security latch assembly configuration will prevent the door from an unauthorized opening when the assembly is in a secured locked position. The window security latch assembly configuration will prevent the upper and lower sashes of a window from an unauthorized opening when the assembly is in a second locked position.
Claims4
A security latch assembly for a door hinged to a door frame, said assembly comprising:
- (a) a lower bracket mounted to jamb of the door frame opposite the hinged portion of the door;
- (b) an elongated vertically disposed L-shaped latch rod having a lower horizontal arm which will bear against the door in a locked position and move away from the door in an unlocked position, said latch rod extending through said lower bracket which supports said latch rod for rotation about a vertical axis while allowing said latch rod to move upwardly and downwardly;
- (c) an upper L-shaped bracket having a first leg mounted to a lintel of the door frame and a second leg having a pair of spaced apart apertures therethrough with one of said apertures directly above top end of said latch rod;
- (d) a C-shaped locking rod having ends carried in both of said apertures in said upper L-shaped bracket;
- (e) a spring placed over the end of said locking rod extending through said second leg that is directly above the top end of said latch rod;
- and
- (f) means for adjustably connecting the top end of said latch rod to the end of said locking rod with said spring thereon which will bias said locking rod downwardly allowing the free end of said locking rod to enter said respective aperture in said upper L-shaped bracket in the locked position, whereby a person can push up said horizontal arm of said latch rod to release said locking rod which will go into the unlocked position to open the door.
4 more elements
A security latch assembly for a window having an upper sash and a lower sash within a window frame, said assembly comprising:
- (a) a lower bracket mounted to jamb of the window frame;
- (b) an elongated vertically disposed L-shaped latch rod having a lower horizontal adjustable retaining arm which will fit between the upper sash and lower sash in a locked position and move away from between the upper sash and lower sash in an unlocked position, said latch rod extends through said lower bracket for supporting said latch rod for rotation about a vertical axis while allowing said latch rod to move upwardly and downwardly;
- (c) an upper L-shaped bracket having a first leg mounted to a lintel of the window frame and a second leg having a pair of spaced apart apertures therethrough with one of said apertures directly above top end of said latch rod;
- (d) a C-shaped locking rod having ends carried in both of said apertures in said L-shaped bracket;
- (e) a spring mounted on the one end of said locking rod extending through said second leg that is directly above the top end of said latch rod;
- and
- (f) means for adjustably connecting the top end of said latch rod to the one end of said locking rod having said spring thereon which will bias said locking rod downwardly allowing the free end of said locking rod to enter said respective aperture in said upper L-shaped bracket in the locked position, whereby a person can move a portion of said retaining arm from between the upper sash and lower sash and push up said retaining arm of said latch rod to release said locking rod which will go into the unlocked position so that the window will open.
4 more elements
Dependencies are inferred from the claim text.