Manual sharpener for teeth of chain saws

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Description

FIG. 1 is a front view of a manual sharpener for teeth of chain saws, showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a lateral view (right side) thereof;

FIG. 6 is a lateral view (left side) thereof; and,

FIG. 7 is a perspective view thereof.

Claims

The ornamental design for a manual sharpener for teeth of chain saws, as shown and described.

Referenced Cited
U.S. Patent Documents
2601227 June 1952 Shebel
2705430 April 1955 Strandberg
2833165 May 1958 Irwin et al.
3172306 March 1965 Kephart, Jr.
3283615 November 1966 Kephart, Jr.
3349460 October 1967 Kephart, Jr.
3518900 July 1970 Gasner et al.
D237248 October 1975 Santore
4010661 March 8, 1977 Fletcher
D246756 December 27, 1977 Smyth et al.
4325168 April 20, 1982 Swentzel
4327605 May 4, 1982 Strojny
4584745 April 29, 1986 Seiber
4864897 September 12, 1989 Newman
5107726 April 28, 1992 Wilhite et al.
5174173 December 29, 1992 Granberg
Other references
  • Chain Sharp CS-X. Downloaded Mar. 24, 2011 at http://www.rueggeberg.de/images/Neuheiten—2010—72dpi—se-en.pdf.
Patent History
Patent number: D670990
Type: Grant
Filed: May 7, 2010
Date of Patent: Nov 20, 2012
Assignee: August Rueggeberg GmbH & Co. KG (Marienheide)
Inventors: Bernd Kruse (Gummersbach), Klemens Schlimbach (Neunkirchen-Seelscheid)
Primary Examiner: Philip S Hyder
Assistant Examiner: Roselynne Cody
Attorney: Browdy and Neimark, PLLC
Application Number: 29/361,241
Classifications
Current U.S. Class: D8/91