Portable electric hammer
United States Patent D520837
US Patent References:
Universal tool element retainer for rotary-hammer devices
Amundsen et al. - February, 1962 - 3022769

Electric motor driven hand-held drill
Theissig - April, 1981 - 4260916

Brush assembly and mounting arrangement for a portable tool
Simpson et al. - December, 1982 - 4366403

Safety clutch for motor-operated hand tool
Lippacher et al. - November, 1990 - 4967888

Portable elecrtric hammer drill
Matsunaga et al. - July, 1994 - D349029


Representative Image:
Portable electric hammer
Inventors:
Tsuzuki, Hitoshi (Hitachinaka, JP)
Sakai, Masato (Hitachinaka, JP)
Taniguchi, Takeshi (Hitachinaka, JP)
Kikuchi, Atsuyuki (Hitachinaka, JP)
Application Number:
D/230802
Publication Date:
05/16/2006
Filing Date:
05/27/2005
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Assignee:
Hitachi Koki Co., Ltd. (Tokyo, JP)
Primary Class:
D08/69
International Classes:
(IPC1-7): 0801
Field of Search:
D8/14.1, D8/65, 227/130, D8/66, 81/489, 451/358, D8/62, D8/63, 81/466, 408/20, 408/124, 81/429, D8/68, 173/13, D8/61, 173/211, 227/142, 408/125, D8/69, 227/120, 81/469, 173/217, 173/114, 81/464, 227/8, 173/178, 310/50, 81/57.11, D8/70, 173/201, D8/67, 227/136, 173/213, 408/241R, 227/114, 408/234, D8/64, 81/465, 173/169
US Patent References:
D361252Electric hammerAugust, 1995De Neergaard et al.D8/69
D380132Portable electric hammer drillJune, 1997Matsunaga et al.D8/69
D386379Portable electric hammerNovember, 1997KasuyaD8/69
D395586Portable electric hammerJune, 1998Arakawa et al.D8/69
6127751Electric toolOctober, 2000Kristen et al.310/50
6155356Percussion toolDecember, 2000Kikuchi et al.173/211
D466780Hammer drillDecember, 2002StirmD8/69
D477206Portable electric hammerJuly, 2003Sakai et al.D8/69
6705410Electrical hand-held power tool with a safety clutchMarch, 2004Ziegler173/178
D503078Portable electric hammer drillMarch, 2005Sakai et al.D8/69
6907942Percussion toolJune, 2005Kikuchi et al.173/114
6938705Striking toolSeptember, 2005Kikuchi173/201
20030155142Percussion toolAugust, 2003Kikuchi et al.173/114
20040112615Electrical, rotary-percussion hand-held toolJune, 2004Mayr et al.173/217
20050145403Striking toolJuly, 2005Kikuchi173/201
Foreign References:
GB3001470February, 2002
Primary Examiner:
Watson, Gary D.
Assistant Examiner:
Nelson, Chase T.
Attorney, Agent or Firm:
Sughrue Mion, PLLC
Claims:
CLAIM

1. The ornamental design for a portable electric hammer, as shown.

Description:

FIG. 1 is a perspective view of the top, front and left side of a portable electric hammer showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof.