Cleaning rings for insulator driven by wind

Brushing – scrubbing – and general cleaning – Attachments – Moving surface scraper – wiper – or brush

Reexamination Certificate

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Details

C015S246000, C174S211000, C174S139000

Reexamination Certificate

active

06957471

ABSTRACT:
A wind driven cleaning ring apparatus for removing dirt on electrical insulators used in electric systems. The cleaning ring apparatus includes spaced apart bowl members supported on a cylindrical ring member by being sleeved over the ring member or formed integral therewith. The bowl members may be hemispherical or conical in shape and may be held spaced apart on the ring member by spherical or cylindrical beads. The bowl members may include a peripheral scraper edge. Spaced apart circular brushes and/or scraper members may be mounted on the ring member between respective ones of the bowl members.

REFERENCES:
patent: 178352 (1876-06-01), Wheeler
patent: 2130427 (1938-09-01), Hoover
patent: 2263340 (1941-11-01), Kraemer
patent: 3597789 (1971-08-01), Boyd
patent: 4388487 (1983-06-01), Petrossian-Avakian
patent: 5119851 (1992-06-01), Paris
patent: D403072 (1998-12-01), Rogers Huante
patent: 6349568 (2002-02-01), Ito
patent: U-87204058 (1988-03-01), None
patent: Y-2158306 (1994-09-01), None
patent: Y-2368137 (2000-03-01), None
patent: 3209412 (1983-09-01), None
patent: 8185743 (1996-07-01), None
patent: 11232945 (1999-08-01), None

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