Screw chuck

Description

FIG. 1 is a front, top and left side perspective view of a screw chuck showing my 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 right side elevational view, the bottom and left side being identical in appearance thereto;

FIG. 6 is a front, top, and left side perspective view of the screw chuck of FIG. 1, in an alternate position for use;

FIG. 7 is a front elevational view thereof;

FIG. 8 is a rear elevational view thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a right side elevational view, the bottom and left side being identical in appearance thereto; and

FIG. 11 is a perspective view thereof, exploded for convenience of illustration.

Referenced Cited
U.S. Patent Documents
D212447 October 1968 Kaser
268393 December 1882 Evans
1878690 September 1932 Forney
3091474 May 1963 Boutros et al.
4702132 October 27, 1987 Grosse
Foreign Patent Documents
597197 January 1948 GBX
Patent History
Patent number: D310673
Type: Grant
Filed: Jun 16, 1988
Date of Patent: Sep 18, 1990
Inventor: Jerry Glaser (Playa Del Rey, CA)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Jeffrey Asch
Attorneys: Charles H. Schwartz, Ellsworth R. Roston
Application Number: 7/207,448