Tools – Wrench – screwdriver – or driver therefor – Rigid jaws
Reexamination Certificate
2006-09-19
2006-09-19
Shakeri, Hadi (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Rigid jaws
C081S120000, C081S125000, C081S003400
Reexamination Certificate
active
07107878
ABSTRACT:
A tool for oil and fuel filters includes a generally cylindrical body having an open upper and a closed lower end. The body includes an interior chamber having a plurality of tapered radial projections that extend longitudinally within the interior chamber. The projections include respective tapered gripping surfaces that engage filters having respective diameters at corresponding depths within the chamber. The chamber defines a reservoir for collecting fluid that leaks when the filter is removed.
REFERENCES:
patent: 3385141 (1968-05-01), Norman
patent: 3853026 (1974-12-01), Rhodes
patent: 4266452 (1981-05-01), Crist
patent: 4865727 (1989-09-01), Krauss
patent: 5065648 (1991-11-01), Hocfbaum, Jr.
patent: 5271299 (1993-12-01), Wadsworth
patent: 5924342 (1999-07-01), Chou
Noonan William E.
Shakeri Hadi
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