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US 3,940,865 AGranted
Plate for indicating the floors and the numbers of stairs of a building
OwnerToshio Moriinventor
Life of this patent
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OwnerToshio Moriinventor
Estimating the term…
On a floor indicating plate to be mounted within a building, the sectional forms and arrows of stairs and numerals representative of the numbers of the stairs are indicated together with numerals representative of floors by the use of only a luminous paint or both the luminous paint and a fluorescent paint. By posting such indicating plate at a prominent place in the staircase between the floors, it is facilitated for an ascender or descender to instantly and precisely judge the present personal situation in the daytime and nighttime, at the failure of electricity or the trouble of an elevator, or in any other case such as outbreak of fire. Thus, it is made possible to confine to the minimum the occurrence of unforeseen injuries which the ascender or descender has heretofore been prone to sustain especially in an emergency.
A safety plate for installation in a building staircase or the like comprising stair indicating means on a generally central portion of said plate depicting a cross sectional representation of the actual stairs in said staircase between floors at one location in said staircase where said safety plate is installed, numerical indicating means on said plate indicating the actual number of stairs between floors in said staircase at said one location, arrow indicating means on said plate positioned to relate said numerical indicating means to said stair indicating means so that the number of actual stairs between floors in said staircase at said one location are readily depicted by and discerned from said stair indicating means, said numerical indicating means and said arrow indicating means, lower floor indicating means on a lower portion of said plate indicating the actual floor of said building at the foot of the actual stairs at said one location, upper floor indicating means on an upper portion of said plate indicating the actual floor of said building at the head of the actual stairs at said one location, all of said means comprising a luminous paint viewable under unlighted conditions of said staircase such that the plate is adapted to be viewed by a stair ascender or descender under said unlighted condition to guide said ascender or descender in negotiating said staircase under emergency conditions or the like.
Dependencies are inferred from the claim text.