Composite inspection plate-step

Details Composite inspection plate-step Composite inspection plate-step

1977-10-17

1978-10-24

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Wall- or floor-attached

Independent rung or step

280163, B60R 300

Patent

active

041216911

ABSTRACT:
A composite inspection plate-step has a first member and at least one step member. The first member has a middle portion and inner and outer surfaces. The first member has at least one opening of a preselected configuration through the middle portion and is defined by a lower edge.
The step member has first and second portions and is of a generally "J" configuration. The first portion extends substantially completely across and a preselected distance through the opening in the first member and is fixedly connected to the lower edge of the opening and is generally horizontal in the installed position. The second portion is fixedly connected to the outer surface of the first member.
The first member is releaseably connected over an inspection port of associated structure by fastening means.

REFERENCES:
patent: 927491 (1909-07-01), Colborne
patent: 1505015 (1924-08-01), Dunlap
patent: 2580326 (1951-12-01), Stevens
patent: 3171671 (1965-03-01), Cornett
patent: 3971456 (1976-07-01), Yonce

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