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US 9,482,034 B2Granted
Security latch for door hinged to open outwardly
OwnerJoseph A Atkinson, Jr.inventor
Life of this patent
Estimating the term…
Abstract
A security latch apparatus for the interior of a school or industrial door hinged to open outwardly. The latch includes a lower mounting door bracket with a pivotable handle designed to fit firmly against the interior doorframe and prevent that door from being prematurely pulled open. A disengagement rod is provided for authorized personnel to manually undo a secured door from its exterior.
Claims20
A security latch for a door hinged to open outwardly, said latch comprising:
- a frame bracket for mounting to an interior of the door adjacent a surrounding frame of the door;
- a pivot hinge connected to the frame bracket, said pivot hinge having a horizontal axis that extends perpendicular to a planar surface of the interior of the door, and said pivot hinge extending outwardly away from the interior of the door;
- and
- a latch arm that connects at one end to the pivot hinge and extends outwardly therefrom, said latch arm being adapted for rotating from a first point when the door is open, said first point being substantially over the door interior, to a second point when the door is closed and sitting within its surrounding frame, said second point requiring at least some physical overlap of an outermost end of the latch arm with the surrounding frame of the door, said frame bracket including an aperture through which a disengagement rod is positioned from outside the closed door to directly contact with and manually rotate the latch arm from the second point until the outermost end of said latch arm no longer physically overlaps the surrounding frame of the door.
1 more element
A security latch for keeping a closed door from being pulled open about its outwardly extending hinges, said latch apparatus comprising:
- a frame bracket for mounting to the door interior adjacent the door's surrounding frame;
- a pivot hinge having a horizontal axis that extends perpendicular to a planar surface of the door interior, said pivot hinge angularly extending outwardly from the door interior and away from the frame bracket;
- and
- a rotatable latch arm that extends from one side of the pivot hinge, said latch arm being adapted for rotating in place and fitting next to or partially engaging with the door's surrounding frame, said frame bracket having an aperture that serves as a guide hole through which a hole is drilled through the door to enable a disengagement rod to be fed from outside the door and through said hole to directly contact with and manually rotate the latch arm until the latch arm no longer engages with the door's surrounding frame.
1 more element
Dependencies are inferred from the claim text.