Electric screw driver

Description

FIG. 1 is a top perspective view of the electric screw driver showing our new design;

FIG. 2 is a bottom perspective view;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a rear elevational view thereof; and

FIG. 8 is a right side elevational view thereof.

Referenced Cited
U.S. Patent Documents
2940488 June 1960 Riley, Jr.
3460408 August 1969 Raymond
4251120 February 17, 1981 Wolff
4762035 August 9, 1988 Fushiya et al.
Other references
  • AEG Heavy Duty Power Tool Catalog 1977, p. 35, locking collars for screwdrivers. Product flyers for Makita power tools Models Nos. 6710DW; 6010DW; 6012DW; 6012; MDW; 8400DW; 6070DW; 6071DW; 6092DW; and 6072DW.
Patent History
Patent number: D302786
Type: Grant
Filed: May 15, 1987
Date of Patent: Aug 15, 1989
Assignee: Makita Electric Works, Ltd.
Inventors: Fusao Fushiya (Anjo), Tetsuhisa Kaneko (Anjo)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Clare E. Heflin
Law Firm: Lahive & Cockfield
Application Number: 7/51,064
Classifications
Current U.S. Class: D 8/68