Platform screen door
OwnerPeter Baileyinventor
Life of this patent
Estimating the term…
Abstract
A platform screen door system having a fixed panel and a door panel, wherein the system is provided with a track (11) having a convex surface adapted to support a roller (14), which roller is rotatably mounted on the moving panel and has a concave surface and has two points of contact (17) on the track.
Claims6
A platform screen door system (1) having a fixed panel and a door panel (3), wherein the system is provided with a track (11) having a convex surface adapted to support a roller (14), which roller (14) is rotatably mounted on the moving panel and has a concave surface, wherein a secondary roller (15) is rotatably mounted on the door panel, which secondary roller (15) in the installed position is spaced from the track (11) and is adapted to hinder the door panel being lifted off of the track.
(canceled)
Dependencies are inferred from the claim text.