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US 5,971,105 AGranted
Escape ladder
OwnerHarold Jacobsoninventor
Life of this patent
Estimating the term…
Abstract
An escape ladder stored in an interior wall of a building, beneath a window. The ladder is deployed by placement through a window with a storage container providing a step for ease in exiting. Ladder steps are secured by a flexible strap with each step including an integral spacer to maintain proper positioning of the steps upon deployment. The ladder is stored in a nest configuration pattern with the connecting strap folded between each step.
Claims18
An escape ladder apparatus for mounting directly beneath a window, said apparatus comprising:
- a storage container having a top, a bottom, a back and two sides, said sides spaced apart a width sized for securement between two studs;
- a cover releasably securable to said storage container defining a chamber in said container;
- a plurality of elongated steps, each step defined by a rectangular support surface defined by a first end and a second end and a front and back edge, said front edge having a first wall depending therefrom, said back edge having a second wall depending therefrom and a spacer formed perpendicular thereto;
- a first and second flexible strap each having a length spanning the distance between a storage container mounting location beneath a window on the inside of a building and the ground level beneath said window on the outside of said building, each said strap having a proximal end secured to said storage container with said steps secured between said straps along the length thereof, said first strap having a plurality of step-end-engaging portions each wrapped around said first end of a corresponding one of said plurality of steps, said second strap having a plurality of step-end-engaging portions each wrapped around said second end of a corresponding one of said plurality of steps;
- a plurality of C-shaped clamps each having a channel sized to frictionally engage an end of each step with said strap positioned between said step and said channel, each of said clamps constructed and arranged to maintain a corresponding step-end-engaging portion of one of said straps in a weight-distributing orientation with respect to a corresponding step;
- said weight-distributing orientation forcing said step-end-engaging portion to simultaneously extend in a substantially conforming manner along a top portion of a corresponding end of said corresponding step, a side portion of said corresponding step, and a bottom portion of said corresponding step;
- means for fastening said clamp to each end of said step;
- whereby said C-shaped clamps force said step-end-engaging portions to follow the contours of the interior surface of said clamp channels and the exterior surface of the step ends, thereby transferring weight loads from said straps to said steps, and whereby said steps and said first and second straps are stored within said chamber and available for use as a ladder during an emergency procedure upon removal from said chamber and placement through the adjacent window.
5 more elements
An escape ladder apparatus for mounting directly beneath a window, said apparatus comprising:
- a storage container having a top, a bottom, a back and two sides, said sides spaced apart a width sized for securement between two studs;
- a cover releasably securable to said storage container defining a chamber in said container;
- a plurality of elongated steps, each step defined by a rectangular support surface defined by a first end and a second end and a front edge and back edge, said front edge having a first wall depending therefrom, said back edge having a second wall depending therefrom and a spacer formed perpendicular thereto, said front edge of each said step is beveled for receipt of a lower portion of a first wall of a nesting step and a back edge of said step is beveled for receipt of a lower portion of a second wall of a nesting step;
- a first and second flexible strap each having a length spanning the distance between a storage container mounting location beneath a window on the inside of a building and the ground level beneath said window on the outside of said building, each said strap having a proximal end secured to said storage container with said steps secured between said straps along the length thereof and a width substantially equal to a distance between said step front edge and said step back edge, said first strap having a plurality of step-end-engaging portions each wrapped around said first end of a corresponding one of said plurality of steps, said second strap having a plurality of step-end-engaging portions each wrapped around said second end of a corresponding one of said plurality of steps;
- a plurality of C-shaped clamps each having a channel sized to frictionally engage an end of each step with said strap positioned between said step and said channel, each of said clamps constructed and arranged to maintain a corresponding step-end-engaging portion of one of said straps in a weight-distributing orientation with respect to a corresponding step;
- said weight-distributing orientation forcing said step-end-engaging portion to simultaneously extend in a substantially conforming manner along a top portion of a corresponding end of said corresponding step, a side portion of said corresponding step, and a bottom portion of said corresponding step;
- means for fastening said clamp to each end of said step;
- and
- a hand strap fastened to said top of said storage container;
- whereby said C-shaped clamps force said step-end-engaging portions to follow the contours of the interior surface of said clamp channels and the exterior surface of the step ends, thereby transferring weight loads from said straps to said to said steps, and whereby said steps and said first and second straps are stored within said chamber and available for use as a ladder during an emergency procedure upon removal from said chamber and placement through the adjacent window.
7 more elements
Dependencies are inferred from the claim text.