Helical end mill cutter

- Seco Tools AB
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Description

FIG. 1 is a side elevational view of a helical end mill cutter according to the pressent invention; and,

FIG. 2 is an end, perspective view thereof.

The lower portion of the helical end mill cutter of the present invention is essentially symmetrical and therefore the other side is not illustrated. The upper portion thereof is conical and substantially planar and therefore is not illustrated.

Referenced Cited
U.S. Patent Documents
3540103 November 1970 Saari
4093392 June 6, 1978 Hopkins
4182587 January 8, 1980 Strigt
4285618 August 25, 1981 Shanley, Jr.
4325664 April 20, 1982 Mori
4790693 December 13, 1988 Koblesky
5083887 January 28, 1992 Dotany
Patent History
Patent number: D339594
Type: Grant
Filed: Dec 4, 1990
Date of Patent: Sep 21, 1993
Assignee: Seco Tools AB (Fagersta)
Inventor: Bertrand Riviere (Bourges)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Antoine D. Davis
Law Firm: Burns, Doane, Swecker & Mathis
Application Number: 7/622,805
Classifications
Current U.S. Class: Cutting Tool, E.g., Drill Bit, Etc. (D15/139)