Fire escape – ladder – or scaffold – Wall- or floor-attached – Independent rung or step
Patent
1985-09-20
1987-04-28
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Wall- or floor-attached
Independent rung or step
411 72, 411510, E06C 708
Patent
active
046606815
ABSTRACT:
A u-shaped climbing rung to be anchored in a bore hole in a wall, the climbing rung being two parallel legs each leg having two ends, one end of each leg being connected to a transverse central element or tread spaced a predetermined distance below the parallel legs and having the other end for anchoring in a wall, the legs and tread being completely encapsulated in a synthetic protective coat having an outer configuration adapted to present each end of the legs remote the tread for anchoring the climbing rung in the wall, each encapsulated end having an anchor for anchoring the end of each leg, in a wall, and two soft elastic and tightly fitting sealing collars located on the legs spaced from the end of the legs securely anchored in the wall to frictionally slide along the legs to present a sealing face to an abutting wall deforming when abutting the surface of the wall to accommodate the surface configuration of the wall surrounding the bore hole whereby the combination of the anchor for securely anchoring the end of each leg in a wall and the sealing collar thereby preclude water and corrosive material from penetrating the bore hole.
REFERENCES:
patent: 3098663 (1963-07-01), Dibley
patent: 3374532 (1968-03-01), Zenhausern
patent: 4385777 (1983-05-01), Logsdon
patent: 4570943 (1986-02-01), Houseman
Fornari James D.
Machado Reinaldo P.
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