The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 1986
Filed:
Feb. 13, 1984
Applicant:
Inventors:
Rangasami S Chandra, Walnut Creek, CA (US);
Jose F Reyes, Newark, CA (US);
Assignee:
Automated Controls Inc., Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G02F / ;
U.S. Cl.
CPC ...
364422 ; 346 / ; 3503 / ; 166 53 ;
Abstract
A portable terminal for plugging into a well production control system for displaying data from the control system and for entering data into the control system. A liquid crystal display module on the terminal displays both graphic and printed data. A keyboard on the terminal provides a means for entering data and control signals into the control system. A temperature compensating circuit adjusts the brightness contrast on the display module so the terminal can be used outdoors over a wide range of temperatures.