US 9,518,421 B2Granted

Safety door barricade

AssigneeNational School Control Systems, LLC

InventorsWilliam W. Cushwa, Jr., David A. Soulsby

Life of this patent

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Abstract

A door barricade includes a base member and a securing mechanism. The base member has a size that permits it to be positioned under a door, with a first upwardly extending portion positioned on the base member and a second upwardly extending portion positioned on the base member. The first and second upwardly extending portions are spaced a distance from one another that is greater than or equal to a width of a door. The securing mechanism is coupled to the base member for mating with a floor. The base member and the securing member together serve to barricade a door such that the door will not move even upon the application of significant force when the securing mechanism is fixedly coupled to a floor.

Claims2

Dependent claims

A method for securing a door in a closed position during an emergency situation with a barricade, the barricade including a base member having a base portion for coupling to the door that includes a protruding portion extending from the base portion, wherein the protruding portion deters movement of the door from the closed position to an open position, and a securing mechanism for fixedly coupling the base member to a non-door surface when the door is in the closed position, said method comprising:

sliding the base member under the door when the door is in the open position such that the protruding portion of the base member abuts the door;
closing the door;
sliding the base member along the bottom of the door when the door is in the closed position until it abuts a stop that is positioned on the door in the vicinity of the bottom of the door;
and
pressing the securing mechanism through an opening in the base member until the securing mechanism enters an opening in the non-door surface.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/107,339Filed 16 Dec 2013 · us provisional application
Priority: 22 Apr 2013
Published: US 2014/0312634 A123 Oct 2014
Granted: 13 Dec 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

E06B 5/10
Doors, windows, or like closures for special purposes ; Border constructions therefor: for protection against air-raid or other war-like action;…
E05C 19/182
Portable devices specially adapted for securing wings: insertable in the gap between the wing and the frame or in the gap between a lock and its…
E05C 19/184
Portable devices specially adapted for securing wings: a portable member cooperating with a fixed member or an opening on the wing or the frame,…
E06B 9/02
Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction:…

Family

Application61/814,618Us provisional application · filed 22 Apr 2013
US 2014/0312634 A1Pre-grant publication · published 23 Oct 2014
US 9,518,421 B2This patent

From the US filing history. Foreign family members aren’t listed.

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