Portable staircase
OwnerEverett Mossinventor
Life of this patent
Estimating the term…
Abstract
An improved portable staircase for assisting workers in excavation sites to ascend and descend safely without the needed use of handrail for workers to safely ascend and descend trenches in excavation sites, tunnels, and the like without using a handrail. The portable staircase includes a plurality of steps (e.g., treads) nested between at least two rails. Each of the rails may have a securing system at their upper and lower ends that are operable to rigidly secure the staircase to the ground.
Claims20
A portable staircase system operable to rapidly and temporarily deploy and secure to the ground and provide workers with egress and ingress to an excavation site, comprising:
- a. a pair of siderails having a lower end and an upper end, each end having an anchoring system operable to secure the siderails to the ground;
- b. a plurality of steps attached between said pair of siderails;
- and
- c. a plurality of attachment conduits operable to receive a plurality of staircase attachments;
- wherein said anchoring system includes fasteners operable to pass through receivers in each siderail, and is operable to connect a first portable staircase siderails to a second portable staircase siderails.
A method for deploying a plurality of portable staircases to assist workers ascending and descending from trenches in excavation sites, comprising:
- a. a portable staircase comprising a plurality of steps secured between two siderails, each of said siderails having an upper-end rail and a lower-end rail with a fastening system operable to align a fastener;
- b. aligning a first portable staircase upper-end rail with a second portable staircase lower-end rail and securing said first and second portable staircases together with said fastening system;
- c. securing said first portable staircases lower-end rail to a base surface of a trench with an anchoring fastener;
- and
- d. securing said second portable staircase upper-end rail to an upper surface of a trench with an anchoring fastener;
- wherein a plurality of portable staircases may be secured between said first and second portable staircase.
Dependencies are inferred from the claim text.