Annular hole cutter

Details Annular hole cutter Annular hole cutter

1998-04-24

1999-08-31

Pitts, Andrea L.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having axial, core-receiving central portion

408206, 408703, B23B 4102

Patent

active

059444606

ABSTRACT:
The present invention discloses an annular hole cutter particularly useful for cutting railroad rails. Railroad rails are extremely hard and normally require drills or cutters which have carbide inserts. The present invention provides uniquely designed cutter with an improved cutter geometry, flute design and thin wall construction to allow the annular cutter to be used with a lower horsepower drill motor making the drill motor portable resulting in a portable rail cutting system.

REFERENCES:
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patent: 4538944 (1985-09-01), Hougen
patent: 4557641 (1985-12-01), Hougen
patent: 4573838 (1986-03-01), Omi et al.
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patent: 4767245 (1988-08-01), Shoji et al.
patent: 4813819 (1989-03-01), Hougen
patent: 4871287 (1989-10-01), Hougen
patent: 4952102 (1990-08-01), Hougen
patent: 5145296 (1992-09-01), Hougen
patent: 5217334 (1993-06-01), Miyazaki et al.
patent: 5281060 (1994-01-01), Strange et al.

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