IP Library Granted Patent US 7,770,340
Granted Patent B2
US 7,770,340 · App. 11/256,725 · Granted Aug 10, 2010

Method and apparatus for installing egress window steps

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Quick Facts
Patent No.
US 7,770,340
App. No.
11/256,725
Granted
Aug 10, 2010
Kind
B2
Abstract

A modular egress window well structure which is constructed of structurally identical walls that interlock and attach to the foundation of a building via a termination strip. The identical wall members allow for ease of manufacturing and installation of the egress window well. The method of installation comprises removing soil away from the foundation of a building, securing the termination of strips to the foundation, assembling the egress window well and then backfilling the soil around the structure.

Claims (19)

1. A modular egress window well structure comprising:

a first side wall;

a second side wall that is generally parallel to first side wall;

a front wall that directly interlocks with the side walls;

the first wall, second wall, and front wall each being structurally identical; and parallel wall termination strips secured to the wall of a building, wherein each of the wall termination strips directly interlocks with one of the first and second sidewalls.

2. The modular egress window well structure of claim 1 wherein a rigid step is placed between two nonparallel modular walls.

3. The modular egress window well structure of claim 1 wherein the walls are stackable.

4. The modular egress window well structure of claim 1 wherein each of the walls is planar.

5. The modular egress window well structure of claim 1 wherein the walls are comprised of a high density plastic material.

6. The modular egress window well structure of claim 1 wherein the walls are comprised of a high density polyethylene skin and a linear low density polyethylene core.

7. The modular egress window well structure of claim 1 wherein the walls are comprised of aluminum.

8. The modular egress window well structure of claim 2 wherein the step is comprised of a high density plastic material.

9. The modular egress window well structure of claim 2 wherein the step is comprised of a high density polyethylene skin and a linear low density polyethylene core.

10. The modular egress window well structure of claim 2 wherein the step is comprised of aluminum.

11. The modular egress window well structure of claim 1 wherein a plurality of steps bridge two nonparallel walls to define a plurality of steps in the interior of the egress window well.

12. The modular egress window of claim 1 wherein the wall termination strip consists of protruding tenon and recessed notch.

13. The modular egress window of claim 12 wherein an end of the wall termination strip consists of a protruding tenon and an opposite end consists of a recessed notch.

14. The modular egress window of claim 1 wherein the wall termination strip is comprised of a high density plastic material.

15. The modular egress window of claim 1 wherein the wall termination strip is comprised of aluminum.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 29, 2009
From: SCALI AS
To: PLATFORM COMPUTING CORPORATION
Reel/Frame 022176/0187 →