Security revolving door assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
Mar 3, 2005
app pub date -
Dec 2, 2003
filing date -
Sep 3, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A security revolving door assembly includes a revolving door and a controlling unit. The revolving door has a rotary vertical shaft, a vertical lateral wall extending circumferentially relative to the shaft, and a plurality of door wings extending radially from the shaft. The door wings have distal ends, include first and second door wings, are rotatable along with the shaft, and define with the lateral wall a trap space when the first and second door wings reach respectively first and second positions. The distal ends of the first and second door wings confront the lateral wall when the first and second door wings reach respectively the first and second positions. The controlling unit is operable so as to stop rotation of the door wings as soon as the door wings define the trap space.
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