Cutting by use of rotating axially moving tool – Tool or tool with support – Having peripherally spaced cutting edges
Patent
1995-10-27
1997-08-12
Bishop, Steven C.
Cutting by use of rotating axially moving tool
Tool or tool with support
Having peripherally spaced cutting edges
30358, 408224, B26F 132
Patent
active
056558619
ABSTRACT:
A hand-held drilling tool has at least one but preferably two blade structures which project longitudinally from a transverse base member to terminate in a distal end that forms a cutting element. Each blade structure has a pair of blade sections that are joined together along the longitudinal axis and that extend radially therefrom to terminate in lateral edges. Where two blade structures are present, each forms a handle for rotatably operating the other blade structure; where only one blade structure is present, a flattened handle is provided. The blade structures can have different blade widths for drilling differently sized holes. The blade sections may be offset from one another, and wedge-shaped feet may be disposed on the cutting elements. One of the blade structures can have both a bit portion and a shank portion of different widths. A pilot tip may also be provided on the distal ends of the blade structures. The drilling tool is configured for unitary molding from a plastic material.
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Bardeen John P.
Bardeen Kea L.
Deneke Bernard F.
Martin Timothy J.
Bishop Steven C.
Henson Michael R.
Martin Timothy J.
Pumpkin Ltd.
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