Power concrete hammer

- Ryobi Ltd.
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.

Referenced Cited
U.S. Patent Documents
D242427 November 1976 Wilsgaard
2518395 August 1950 Sopris
2533487 December 1950 Maurer et al.
3837409 September 1974 Consoli et al.
Other references
  • Popular Mechanics, May 1987, p. 42, SKIL Concrete Buster.
Patent History
Patent number: D301967
Type: Grant
Filed: Jul 22, 1986
Date of Patent: Jul 4, 1989
Assignee: Ryobi Ltd. (Hiroshima)
Inventors: Masakazu Sakamoto (Tokyo), Toshiaki Saito (Tokyo)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Clare E. Heflin
Law Firm: Sughrue, Mion, Zinn, Macpeak & Seas
Application Number: 6/887,853
Classifications
Current U.S. Class: D 8/67; D 8/61; D 8/69