Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1989-03-24
1990-10-16
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15 884, 151041R, 15246, 152465, 51 43, A46B 1302
Patent
active
049625667
ABSTRACT:
A machine (3) for cleaning tapped holes (2) distributed around the periphery of an opening (1), e.g., those tapped holes used for peripherally bolting on a cover for an armhole or an eyehole in a steam generator of a nuclear power station. The machine comprises a grip (4) for centering and clamping the machine on the opening, thereby enabling it to be positioned on the axis (12) of the opening and to be held in position by abutment against the wall (10) of the opening; and a brush (13) disposed at a fixed radial distance from the axis of the opening. The brush is movable both in rotation about the axis (12) of the opening so that the trajectory of the brush describes a circle intersecting the axes of the various tapped holes distributed around the periphery of the opening, thereby enabling the brush to be selectively positioned over each of the tapped holes; and in axial translation along an axis coinciding with the axis of a tapped hole so as to enable the brush to be inserted into and withdrawn from the tapped hole.
REFERENCES:
patent: 1659301 (1928-02-01), Nelis
patent: 3810710 (1974-05-01), Ennemoser
patent: 4419847 (1983-12-01), Duverne
patent: 4485517 (1984-12-01), Voigt
patent: 4805253 (1989-02-01), Hanser
Electricite de France (Service National
Moore Chris K.
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