Personnel door for a RF shielded room
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 4, 1990
Issued Date -
N/A
app pub date -
Mar 30, 1989
filing date -
Dec 7, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A personnel door for sealing a room having a source of Radio Frequency (RF) radiation. The door when swung into a closed position can be energized to be partially disposed in an opening below floor level directly beneath the door. Sealing between the door and the door frame of the room can occur around the borders of the door including the part disposed in the opening below floor level. A step up into the room or use of a ramp to gain access to the room is thereby eliminated. In the preferred embodiment, the door is retained above the opening below floor level by springs and energized to move vertically downward into the opening against the force of the springs by an air cylinder.
First Claim
Family
International Classification(s)
Cited Art Landscape
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