Compact scanner apparatus

摘要

The present invention provides a compact scanner apparatus having a tunnel with a conveyor passing therethrough. A scanning beam, e.g. an X-ray beam, is mounted in the tunnel to view an object being moved on the conveyor. Upper and lower isolation device curtains are mounted at the tunnel entry. Either a single curtain or multiple curtains are mounted at the exit of the tunnel. The lower curtains are opposed pairs hinged to pivot as the object passes through. The upper curtains may be hinged pairs or a single swinging curtain hanging down from a support bar. Alternate embodiments provide bi-directional hinged curtains or multiple tiers of hinged curtains.

主权项

1. A compact scanner apparatus having a scanning beam mounted within a tunnel through which objects are carried on a conveyor, the compact scanner apparatus comprising:
a. a first isolation device curtain mounted to the tunnel in a manner to cover an upper portion of an entry of the tunnel; b. a second isolation device curtain mounted to the tunnel in a manner to cover a lower portion of the entry of the tunnel; c. the first and second isolation device curtains substantially covering the entry of the tunnel; d. when the first and second isolation device curtains are in a rest position, the second isolation device curtain resides coplanar with the first isolation device curtain; and e. a third isolation device curtain mounted to the tunnel in a manner to cover an exit of the tunnel.