Movable or removable closures – Plural wings radiate from common pivot; i.e. – revolving – Successive position-type; e.g. – turnstile
Patent
1990-12-19
1991-10-15
Lindsey, Rodney M.
Movable or removable closures
Plural wings radiate from common pivot; i.e., revolving
Successive position-type; e.g., turnstile
49 35, E06B 1108
Patent
active
050562614
ABSTRACT:
A turnstile system used to meter the entry of persons into or out of an area through a passageway includes a first cabinet defining one side of the passageway with a turnstile hub rotationally mounted in the first cabinet. The turnstile hub has an axis of rotation inclined at an angle of from about 38 to about 41 degrees from the vertical, most preferably at about 39 degrees from the vertical. A tripod of three turnstile arms of equal length extends from the hub with the arms lying along the edges of an equilateral pyramid having a pyramid apex that lies along the rotational axis of the hub. A second cabinet defining the other side of the passageway is spaced apart from the first cabinet. The second cabinet has a profile when viewed in the direction parallel to the passageway that includes a lower portion having a first distance from the first cabinet, an upper portion having a second distance from the first cabinet that is greater than the first distance, and a transition portion extending between the first portion and the second portion.
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patent: 4640047 (1987-02-01), Simonin et al.
Cubic Automatic Revenue Collection Group
Garmong Gregory O.
Lindsey Rodney M.
Redman Jerry
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