Input/output unit of sequence controller

- Sharp Corporation
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Description

FIG. 1 is a perspective view of an input/output unit of sequence controller showing the new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a left side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D281493 November 26, 1985 Prager et al.
D292394 October 20, 1987 Boucher
D296432 June 28, 1988 Harris et al.
D309446 July 24, 1990 Russell
D309600 July 31, 1990 Backes
4152750 May 1, 1979 Bremenour et al.
4672511 June 9, 1987 Meusel et al.
4920453 April 24, 1990 Onose et al.
Other references
  • Omron programmable controller on p. 2 of Control Engineering, 5-89.
Patent History
Patent number: D329844
Type: Grant
Filed: Mar 8, 1990
Date of Patent: Sep 29, 1992
Assignee: Sharp Corporation (Osaka)
Inventor: Katsuhiro Ishida (Osaka)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Joel Sincavage
Law Firm: Flehr, Hohbach, Test, Albritton & Herbert
Application Number: 7/490,974
Classifications
Current U.S. Class: Control Panel, Console Or Module (D13/162)