Multiple control box for a computer graphics workstation

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Description

FIG. 1 is a top, front, right side perspective view of a multiple control box for a computer graphics workstation showing our new design;

FIG. 2 is a left side elevational view thereof on an enlarged scale, the right side elevational being a mirror image;

FIG. 3 is a top plan view thereof on an enlarged scale;

FIG. 4 is a front elevational view thereof on an enlarged scale;

FIG. 5 is a rear elevational view thereof on an enlarged scale;

FIG. 6 is a bottom plan view thereof on an enlarged scale.

Referenced Cited
U.S. Patent Documents
D274631 July 10, 1984 Smith, III et al.
D276247 November 6, 1984 Kim
D291806 September 8, 1987 Conway et al.
3479898 November 1969 Prager
4590339 May 20, 1986 Scott-Jackson et al.
Other references
  • Photographs of an Evans & Sutherland, Model No. PS300, Dial Box. Advertising Brochure of an Evans and Sutherland Model PS390, Graphics Workstation.
Patent History
Patent number: D313400
Type: Grant
Filed: Aug 13, 1987
Date of Patent: Jan 1, 1991
Assignee: Digital Equipment Corporation (Maynard, MA)
Inventors: John D. Quinn (Hudson, NH), Douglas Bushman (Houston, TX), Brian S. Siart (Fitchburg, MA)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Freda S. Nunn
Law Firm: Kenyon and Kenyon
Application Number: 7/85,601
Classifications
Current U.S. Class: D14/100; D14/114