Grinding and sharpening machine

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Description

FIG. 1 is a front elevational view of the grinding and sharpening machine of the present invention;

FIG. 2 is a rear elevational view of the grinding and sharpening machine illustrated in FIG. 1;

FIG. 3 is a top view of the grinding and sharpening machine illustrated in FIG. 1;

FIG. 4 is a bottom view of the grinding and sharpening machine illustrated in FIG. 1;

FIG. 5 is a left side elevational view of the grinding and sharpening machine illustrated in FIG. 1; and,

FIG. 6 is a right side elevational view of the grinding and sharpening machine illustrated in FIG. 1; and,

FIG. 7 is a front perspective view from the left side and from below of the grinding and sharpening machine illustrated in FIG. 1.

Referenced Cited
U.S. Patent Documents
D299467 January 17, 1989 Ritt
D338901 August 31, 1993 Chen
3885352 May 1975 Juranitch
4436000 March 13, 1984 Lenard et al.
4996797 March 5, 1991 Laughton
Other references
  • Instruction Manual for Makita Sharpener Model 9820-2 of Makita Electric Works, Ltd., Dated 1985. Instruction Manual for Delta Model No. 23-700 Wet/Dry Grinder, Delta International Machinery Corp., Pittsburgh, PA, Dated Mar. 15, 1988. AMT Power Tool Catalog, Depicting AMT Model No. 4881 Horizontal Wet Wheel, American Machine and Tool Company, Royersford, PA, Dated Fall 1994. Delta Building Trades and Home Shop Machinery Catalog, depicting on pp. 73-74 the Delta Model No. 23-680 6" Bench Grinder, Model No. 23-980 10" Bench Grinder, Model No. 23-880 8" Bench Grinder, Model No. 23-580 5" Bench Grinder, and Model No. 23-660 6" Bench Grinder, Delta International Machinery Corp., Pittsburgh, PA, Dated Jan. 1994.
Patent History
Patent number: D366662
Type: Grant
Filed: Aug 9, 1994
Date of Patent: Jan 30, 1996
Assignee: Delta International Machinery Corp. (Pittsburgh, PA)
Inventors: Jeffrey L. Haffely (Gibsonia, PA), Xun Lei (Cheswick, PA), Louis C. Brickner (Pittsburgh, PA)
Primary Examiner: Antoine Duval Davis
Law Firm: Kirkpatrick & Lockhart
Application Number: 0/26,701
Classifications
Current U.S. Class: Abrading (D15/124)