Remote stud cleaner
AssigneeCombustion Engineering, Inc.
InventorBengt I. Bayersten
Life of this patent
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Abstract
A device 20 for cleaning threaded studs 14 securing the dome-shaped head of a nuclear reactor pressure vessel to the vessel body 10 comprises a cylindrical brush holder 24 rotatably carried in a housing 22. An annular steel wire brush 28, disposed on the inner surface of the brush holder 24, is adapted to fit over and engage the threaded portion 14a of a stud 14. An electric motor 26 mounted on the housing 22 rotates the brush holder 24 as it is lowered onto an upstanding stud 14. A vacuum source connected to the housing 22 captures any particulate matter removed from the stud 14.
Claims6
A device for cleaning threaded studs on a nuclear reactor pressure vessel comprising:
- a right cylindrical housing;
- a right cylindrical brush holder telescopically and rotatably carried within said housing;
- an annular brush disposed on the inner surface of said brush holder, proximate an end thereof, said brush being adapted for telescopic engagement with the threaded portion of a stud;
- motor means for rotating said brush holder relative to said housing;
- and
- lifting means for attaching said housing to a crane or hoist.
Dependencies are inferred from the claim text.