Hole cutter

- Nitto Kohki Co., Ltd.
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Description

FIG. 1 is a top, front and right-side perspective view of a hole cutter showing my new design;

FIG. 2 is a bottom, rear and right-side perspective view;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view;

FIG. 5 is a left side elevational view;

FIG. 6 is a rear elevational view;

FIG. 7 is a top plan view; and,

FIG. 8 is a bottom plan view.

Referenced Cited
U.S. Patent Documents
4285618 August 25, 1981 Shanley, Jr.
4322188 March 30, 1982 Hougen
4557641 December 10, 1985 Housen
4767245 August 30, 1988 Shoji et al.
4871287 October 3, 1989 Hougen
5281060 January 25, 1994 Strange et al.
Patent History
Patent number: D363728
Type: Grant
Filed: Dec 22, 1994
Date of Patent: Oct 31, 1995
Assignee: Nitto Kohki Co., Ltd. (Tokyo)
Inventor: Osamu Asano (Tokyo)
Primary Examiner: Antoine Duval Davis
Law Firm: Wenderoth, Lind & Ponack
Application Number: 0/32,615
Classifications
Current U.S. Class: Cutting Tool, E.g., Drill Bit, Etc. (D15/139)