Cutting by use of rotating axially moving tool – Tool or tool with support – Having peripherally spaced cutting edges
Patent
1993-08-02
1995-03-21
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Tool or tool with support
Having peripherally spaced cutting edges
7165, 279 83, 408226, 408230, B23B 5100
Patent
active
053990510
ABSTRACT:
A new and improved interchangeable head boring or driving apparatus includes a first head-receiving member which includes a first polygonal-shaped receiving well which is in alignment with a longitudinal axis of the head-receiving member. A plurality of respective interchangeable head assemblies include respective head elements and respective projections which project from the head elements. The respective projections include a first polygonal shape complementary to the first polygonal-shaped receiving well. The respective projections project from the head elements, such that, when the respective projections are inserted into the first polygonal-shaped receiving well, the respective projections and the first polygonal-shaped receiving well arc coaxial along the longitudinal axis. A locking assembly locks the respective projections into the first polygonal-shaped receiving well of the head-receiving member. The first polygonal-shaped projection and the first polygonal-shaped receiving well may have respective cross-sectional shapes of a quadrilateral, a triangle, a hexagon, or a semicircle, among others. The interchangeable head assembly may include a screwdriver blade portion. The screwdriver blade portion is connected to a projection. A flexible belt retainer assembly is provided for a plurality of interchangeable head assemblies and includes a flexible belt member, complementary belt connecting straps attached to the flexible belt member, a plurality of receivers for receiving the head-receiving members, and a plurality of receivers for receiving the interchangeable head assemblies, whether they be for interchangeable drill bits or for interchangeable screwdriver blades.
REFERENCES:
patent: 256078 (1882-04-01), Titus
patent: 857151 (1907-06-01), Booth
patent: 932071 (1909-08-01), Urbscheit
patent: 1048035 (1912-12-01), Campbell
patent: 1697414 (1929-01-01), Cordray
patent: 2073430 (1937-03-01), Tautz
patent: 3023015 (1962-02-01), Pankow
patent: 3994615 (1976-11-01), Narang
Aken Douglas G.
Aken Renee J.
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