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. 20, 1979
Filed:
Apr. 24, 1978
Applicant:
Inventors:
Warren G Buchwald, Marshalltown, IA (US);
David W Norris, Marshalltown, IA (US);
Assignee:
Fisher Controls Company, Inc., Marshalltown, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06G / ; G06G / ; G05B / ;
U.S. Cl.
CPC ...
364117 ; 318610 ; 364105 ; 364500 ; 422110 ; 2323 / ;
Abstract
A Batch Option Module is provided for a process control instrument. Whenever the process control instrument reaches the limits of its control range, the Batch Option Module is activated to limit the output of the instrument as a function of the process variable, the setpoint, and an adjustable bias. When the output of the instrument due to normal control action no longer trys to exceed the Batch Option Module limit, the Batch Option Module is deactivated.