Radioactive hot cell access hole decontamination machine

Patent · Fri Jan 01 00:00:00 EST 1982

OSTI ID:864284

Simpson, William E ^[1]

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1. Richland, WA

Radioactive hot cell access hole decontamination machine. A mobile housing has an opening large enough to encircle the access hole and has a shielding door, with a door opening and closing mechanism, for uncovering and covering the opening. The housing contains a shaft which has an apparatus for rotating the shaft and a device for independently translating the shaft from the housing through the opening and access hole into the hot cell chamber. A properly sized cylindrical pig containing wire brushes and cloth or other disks, with an arrangement for releasably attaching it to the end of the shaft, circumferentially cleans the access hole wall of radioactive contamination and thereafter detaches from the shaft to fall into the hot cell chamber.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• DOE Contract Number: AC06-76RL01830
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4343059
• OSTI ID: 864284
• Country of Publication: United States
• Language: English

Related Subjects

radioactive
hot
cell
access
decontamination
machine
mobile
housing
encircle
shielding
door
closing
mechanism
uncovering
covering
contains
shaft
apparatus
rotating
device
independently
translating
chamber
properly
sized
cylindrical
pig
containing
wire
brushes
cloth
disks
arrangement
releasably
attaching
circumferentially
cleans
wall
contamination
thereafter
detaches
fall
hot cell
properly sized
cell chamber
releasably attaching
housing contains
radioactive contamination
radioactive hot
cell access
wire brush
releasably attach
decontamination machine
/15/