Flute-wiping auger cleaner

Boring or penetrating the earth – With above-ground cleaner for boring means

Reexamination Certificate

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Details

C175S313000, C175S316000, C015S256530

Reexamination Certificate

active

07614463

ABSTRACT:
A flute-wiping auger cleaner has a laterally-shearing shackle, an axial track spaced parallel to the auger; and a traveling carriage on the track for supporting the shackle. The shackle includes a series of angularly-staged wiper blades to project into the flute of the auger and centrally stabilize the blades on the turning axis of the auger. The shackle is biased not only to pressure the wipers inwards towards the auger's cylindrical sidewall but also allow the shackle to open slightly against the force of the bias in event a blade cannot dislodge a difficult clump of fouling material in the flute. In that event, the blade is pushed out and then pressured back in as it rides over the difficult-to-dislodge clump. Spinning the auger causes the blades to travel the length of the helical flute while the shackle travels axially on the track.

REFERENCES:
patent: 613369 (1898-11-01), Hirlinger
patent: 720078 (1903-02-01), Smith et al.
patent: 760219 (1904-05-01), Lisle
patent: 879812 (1908-02-01), Button et al.
patent: 1223034 (1917-04-01), Colgan et al.
patent: 1290127 (1919-01-01), Drake
patent: 1352172 (1920-09-01), Brandon
patent: 1455499 (1923-05-01), Lang
patent: 1526174 (1925-02-01), Obermuller
patent: 1542099 (1925-06-01), Rogers
patent: 1587021 (1926-06-01), Montgomery
patent: 4944543 (1990-07-01), Walsh
patent: 5655610 (1997-08-01), Skinner
National Driller vol. 26, No. 12 Dec. 2005.

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