Motor-driven screw driver

- Matsushita Electric Works
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Description

FIG. 1 is a front elevational view of a motor-driven screw driver showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a sectional view thereof taken along the line 7--7 in FIG. 5;

FIG. 8 is a sectional view thereof taken along the line 8--8 in FIG. 1.

Referenced Cited
U.S. Patent Documents
D238970 February 1976 Baum
2618399 November 1952 Stratman et al.
4448098 May 15, 1984 Totsu
Other references
  • D. I. Y. Retailing Aug. 1988, p. 129 Wen's Cordless Driver Model 228.
Patent History
Patent number: D301496
Type: Grant
Filed: May 19, 1986
Date of Patent: Jun 6, 1989
Assignee: Matsushita Electric Works
Inventors: Kazuyoshi Yonesawa (Kadoma), Yonosuke Iwai (Kadoma)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Clare E. Heflin
Law Firm: Leydig, Voit & Mayer
Application Number: 6/885,871
Classifications
Current U.S. Class: D 8/68; D 8/61