Parapet descent apparatus
OwnerCharles J. MacKarvichinventor
Life of this patent
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Abstract
A parapet descent apparatus can include a mounting panel configured to be secured to the parapet of an elevated structure; and a parapet ladder secured to the mounting panel and including: a first ladder rail; a second ladder rail; and a plurality of rungs, each of the plurality of rungs extending from the first ladder rail to the second ladder rail, the parapet ladder defining a first end configured to be secured to the parapet of the elevated structure and a second end distal from the first end and configured to contact a surface of the elevated structure, a top surface of the parapet being offset above the surface of the elevated structure by a wall height of the parapet.
Claims20
A parapet descent apparatus comprising:
- a mounting panel configured to be secured to the parapet of an elevated structure;
- and
- a parapet ladder secured to the mounting panel and comprising:
- a first ladder rail;
- a second ladder rail;
- and
- a plurality of rungs, each of the plurality of rungs extending from the first ladder rail to the second ladder rail, the parapet ladder defining a first end configured to be secured to the parapet of the elevated structure and a second end distal from the first end and configured to contact a surface of the elevated structure, a top surface of the parapet being offset above the surface of the elevated structure by a wall height of the parapet.
A method of using a parapet descent apparatus to access an elevated structure, the method comprising:
- securing a mounting panel to a parapet of the elevated structure;
- securing a parapet ladder to the mounting panel, the parapet ladder comprising:
- a first ladder rail;
- a second ladder rail;
- and
- a plurality of rungs, each of the plurality of rungs extending from the first ladder rail to the second ladder rail, the parapet ladder defining a first end configured to be secured to the parapet of the elevated structure and a second end distal from the first end and configured to contact a surface of the elevated structure, a top surface of the parapet being offset above the surface of the elevated structure by a wall height of the parapet;
- and
- securing a portable, rigid main ladder to the parapet proximate to each of the mounting panel and the ladder parapet, the mounting panel and the parapet ladder configured for passage of a user of the parapet descent apparatus from the ladder to the parapet ladder.
A system comprising:
- an upper anchor configured to be secured to an upward-facing surface of an elevated structure proximate to a portable, rigid ladder accessing the elevated structure, the surface of the elevated structure being one of a horizontal surface and a surface sloped with respect to a horizontal orientation of the system and not defined by the ladder, the upper anchor comprising a shock absorber;
- a lower anchor comprising a first portion and a second portion slideably secured to the first portion, the first portion and the second portion configured to receive the ladder therebetween, the lower anchor configured to not rotate with respect to the ladder;
- and
- a cable configured to extend from the upper anchor to the lower anchor, the cable configured to receive a cable sleeve configured to tether a user to the cable, the cable further configured to allow movement of the cable sleeve to any position between the upper anchor and the lower anchor.
Dependencies are inferred from the claim text.