Programmable controller

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Description

FIG. 1 is a front elevational view of a programmable controller showing our new design;

FIG. 2 is a rear elevational view of that shown in FIG. 1;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and;

FIG. 7 is a front, top and left side perspective view thereof.

Referenced Cited
U.S. Patent Documents
D281493 November 26, 1985 Prager et al.
D287117 December 9, 1986 Saiki et al.
D290694 July 7, 1987 Shimizu et al.
D291317 August 11, 1987 Sharp
D298747 November 29, 1988 Shibayama et al.
4658375 April 14, 1987 Onogi et al.
Other references
  • Mitsubishi 1-Board Sequencers (advertising brochure). Mitsubishi Programmable Controllers (advertising brochure); MELSEC F1.
Patent History
Patent number: D307577
Type: Grant
Filed: Dec 29, 1987
Date of Patent: May 1, 1990
Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo)
Inventors: Yoshinori Abe (Kanagawa), Muneaki Inoue (Hyogo), Kazuhiro Hata (Hyogo)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Joel Sincavage
Law Firm: Bernard, Rothwell & Brown
Application Number: 7/139,058