Programmable controller

- Hitachi, Ltd.
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Description

FIG. 1 is a front, top and right side perspective view of a programmable controller showing our new design;

FIG. 2 is front elevational view thereof;

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 rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D292394 October 20, 1987 Boucher
D296432 June 28, 1988 Harris et al.
4250563 February 10, 1981 Struger
4510565 April 9, 1985 Dummermuth
Other references
  • New Equipment Digest, 1-85, p. 108. New Equipment Digest, 5-85, p. 26. Design News, 9-85.
Patent History
Patent number: D307740
Type: Grant
Filed: Aug 22, 1986
Date of Patent: May 8, 1990
Assignee: Hitachi, Ltd. (Tokyo)
Inventors: Masato Shibayama (Sayama), Kazuyuki Tsuburaya (Akikawa), Michiaki Kotsuka (Chiba), Takayuki Oshiga (Narashino), Katsuhiro Fujiwara (Sakura)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Joel Sincavage
Law Firm: Antonelli, Terry & Wands
Application Number: 6/899,428