Muffler for a jackhammer

- Ingersoll-Rand Company
Description

FIG. 1 is a front view of a muffler for a jackhammer, showing my new design;

FIG. 2 is a also right side view, the opposite side being a mirror image thereof;

FIG. 2 is a also right side view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a top perspective view showing the top, side and front thereof;

FIG. 7 is a side perspective view showing a side and front thereof;

FIG. 8 is a top perspective view showing the top, side and front thereof;

FIG. 9 is a bottom perspective view showing the bottom and back thereof; and,

FIG. 10 is a side perspective view showing the top, side and back thereof.

Elements shown in dotted are environmental only, and form no part of the claimed design.

Referenced Cited
U.S. Patent Documents
1115704 November 1914 Manes
2166218 July 1939 Morrison
2949975 August 1960 Plummer
3379278 April 1968 Skowron
3815705 June 1974 Bennett
4662474 May 5, 1987 Cheng
5189267 February 23, 1993 Ligman
Patent History
Patent number: D355422
Type: Grant
Filed: Oct 9, 1992
Date of Patent: Feb 14, 1995
Assignee: Ingersoll-Rand Company (Woodcliff Lake, NJ)
Inventor: Robert R. Kimberlin (Troutville, VA)
Primary Examiner: A. Hugo Word
Assistant Examiner: Eric M. Watterson
Attorney: John J. Selko
Application Number: 0/340