Controller for industrial instrumentation

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Description

FIG. 1 is a front elevational view of a controller for industrial instrumentation showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof the bottom plan view being a mirror image;

FIG. 4 is a right side elevational view thereof the left side elevational view being a mirror image; and

FIG. 5 is an enlarged perspective view thereof wherein the broken lines are for illustrating an operating state.

Referenced Cited
U.S. Patent Documents
D212950 December 1968 Gruye
D272819 February 28, 1984 Bean et al.
D273103 March 20, 1984 Lewellen
D275194 August 21, 1984 Walker
D282461 February 4, 1986 Shimizu et al.
4152750 May 1, 1979 Bremenour
4652769 March 24, 1987 Smith et al.
Other references
  • New Equipment Digest, 1-85, p. 39, G-E Controllers. Journal "Measuring Technique" published in Sep. 1987. Catalog by Hitachi.
Patent History
Patent number: D307708
Type: Grant
Filed: Sep 29, 1988
Date of Patent: May 8, 1990
Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo)
Inventors: Tatsurou Moriyama (Hyogo), Masaharu Wakamatsu (Hyogo)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Joel Sincavage
Law Firm: Bernard, Rothwell & Brown
Application Number: 7/250,506