Compound tools – Miscellaneous
Patent
1993-03-08
1994-08-23
Parker, Roscoe V.
Compound tools
Miscellaneous
7901, 81488, 294 655, B25F 100
Patent
active
053394739
ABSTRACT:
A tool includes an elongate shank having an extractor threaded screw member, including a barbed projection extending therefrom to secure chips within a priorly tapped blind bore. The barbed tip is of magnetic material to enhance securement of chips relative to the barbed projection.
REFERENCES:
patent: 300317 (1884-06-01), Griffith
patent: 2417762 (1947-03-01), Koller
patent: 3263533 (1966-08-01), Carlson
patent: 3952618 (1976-04-01), Seamon
patent: 4034594 (1977-07-01), Morgan
patent: 4078458 (1978-03-01), Berendzen
Combs E. Michael
Parker Roscoe V.
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