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Power concrete hammer |
| D301967 |
Power concrete hammer
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| Patent Drawings: | |
| Inventor: |
Sakamoto, et al. |
| Date Issued: |
July 4, 1989 |
| Application: |
06/887,853 |
| Filed: |
July 22, 1986 |
| Inventors: |
Saito; Toshiaki (Tokyo, JP)
Sakamoto; Masakazu (Tokyo, JP)
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| Assignee: |
Ryobi Ltd. (Hiroshima, JP) |
| Primary Examiner: |
Dunkins; Bruce W. |
| Assistant Examiner: |
Heflin; Clare E. |
| Attorney Or Agent: |
Sughrue, Mion, Zinn, Macpeak & Seas |
| U.S. Class: |
D8/61; D8/67; D8/69 |
| Field Of Search: |
D8/61; D8/62; D8/63; D8/64; D8/65; D8/66; D8/67; D8/68; D8/69; D8/70; 173/170; 81/57.11; 81/57.13; 81/57.14; 51/17R; 51/17PT |
| International Class: |
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| U.S Patent Documents: |
D242427; 2518395; 2533487; 3837409 |
| Foreign Patent Documents: |
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| Other References: |
Popular Mechanics, May 1987, p. 42, SKIL Concrete Buster.. |
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| Abstract: |
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| Claim: |
The ornamental design for a power concrete hammer, as shown. |
| Description: |
FIG. 1 is a front, top, and right side perspective view of a power concrete hammer showing our new design;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a front elevational view thereof; and
FIG. 7 is a rear elevational view thereof.
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