Signals and indicators – Indicators – By touch
Patent
1992-09-30
1994-04-19
Cuchlinski, Jr., William A.
Signals and indicators
Indicators
By touch
116DIG17, G09B 2100, E04F 1500
Patent
active
053036697
ABSTRACT:
A marking tile is disclosed, for use in conjunction with pedestrian platforms and walkways. The preferred embodiment of the tile has a plurality of buttons or longitudinal strips projecting upwardly therefrom to provide a distinctively textured upper surface. The upward projections are of a lower height adjacent each exposed edge than elsewhere on the tile. An integral flange, vertical or angled away from the vertical, projects downwardly from each exposed edge. The edges of the tile which are exposed to pedestrian traffic may have a downwardly angled portion such that the height of the upper surface of the tile at the exposed edge is substantially at the height of the lower surface of the rest of the tile, so that the edge may be installed flush with the platform or walkway if the surface of the platform or walkway is bevelled beneath the angled portion. The button surfaces and the surface of the tile between the buttons are provided with a plurality of small upward projections to texture the surfaces.
REFERENCES:
patent: 691434 (1902-01-01), Barnett
patent: 1051354 (1913-01-01), Strachan
patent: 4080087 (1978-03-01), Phillips
patent: 4620816 (1986-11-01), Kufer
patent: 4715743 (1987-12-01), Schmanski
Armstrong R. Craig
Cuchlinski Jr. William A.
Worth W. Morris
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