US PATENT SUBCLASS 49 / 46
.~ Successive position-type; e.g., turnstile

Current as of: June, 1999
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49 /   HD   MOVABLE OR REMOVABLE CLOSURES

42  DF  PLURAL WINGS RADIATE FROM COMMON PIVOT; I.E., REVOLVING {3}
46.~ Successive position-type; e.g., turnstile {1}
47  DF  .~.~> Drop-arm type

DEFINITION

Classification: 49/46

(under subclass 42) Device wherein are provided means to restrict rotation of the wings to one direction, and wherein after each pass-through portion of a revolution of a wing, a mechanism centers a succeeding wing in passage barring position.

SEE OR SEARCH CLASS

105, Railway Rolling Stock,

341.5, for a railroad car entrance or exit control, including a turnstile.