Portable programmer for programmable controller

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Description

FIG. 1 is a top, front perspective view of the portable programmer for programmable controller showing our new design, the front cover being removed to disclose the _keyboard and CRT display;

FIG. 2 is a front elevational view thereof on an enlarged scale;

FIG. 3 is a front elevational view thereof on an enlarged scale with the front cover in place;

FIG. 4 is a right side elevational view thereof on an enlarged scale with the front cover in place;

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

FIG. 6 is a bottom plan view thereof on a reduced scale with the front cover in place.

Referenced Cited
U.S. Patent Documents
3942077 March 2, 1976 Powers
Other references
  • Datamation, 3-1975, p. 39, Portable CRT Terminal.
Patent History
Patent number: D255116
Type: Grant
Filed: Mar 3, 1978
Date of Patent: May 27, 1980
Assignee: Gould Inc., Modicon Division (Andover, MA)
Inventors: John B. MacDonald (Boston, MA), Michael J. Mercadante (North Quincy, MA)
Primary Examiner: Susan J. Lucas
Law Firm: Mattern, Ware, Davis & Stoltz
Application Number: 5/883,340
Classifications
Current U.S. Class: D14/43
International Classification: D1402;