Hammer drill

Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a left/front perspective view of a dust extractor showing my new design.

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a right side view thereof.

FIG. 5 is a left side view thereof.

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a top view thereof.

Claims

The ornamental design for a hammer drill, as shown and described.

Referenced Cited
U.S. Patent Documents
D111005 August 1938 Sperry
D301967 July 4, 1989 Sakamoto et al.
D329794 September 29, 1992 Graham
D343345 January 18, 1994 Ogawa et al.
D411426 June 22, 1999 Morita
D447677 September 11, 2001 Stirm
D570174 June 3, 2008 Stirm
D580250 November 11, 2008 Strim
D603674 November 10, 2009 Werner
7624815 December 1, 2009 Friedrich et al.
7726413 June 1, 2010 Berghauser et al.
Patent History
Patent number: D641604
Type: Grant
Filed: Feb 7, 2011
Date of Patent: Jul 19, 2011
Assignee: Black & Decker Inc. (Newark, DE)
Inventor: Michael Stirm (Oberursel)
Primary Examiner: Austin Murphy
Attorney: Kofi Schulterbrandt
Application Number: 29/384,965
Classifications
Current U.S. Class: D8/67