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:
Sep. 24, 1996
Filed:
Mar. 24, 1995
M Nebil Ben-Aissa, Tunisia, ZA;
Jerry J Doran, Greendale, WI (US);
Howard A Jensen, Mequon, WI (US);
Dick Monroe, West Milwaukee, WI (US);
Johnson Service Company, Milwaukee, WI (US);
Abstract
The present invention relates to a dual duct control system for use in an environmental control system. The dual duct control system is preferably utilized in a dual duct VAV box. The control system advantageously receives room temperature values, mixed air flow values, and positions the actuators in response to temperature values and flow values. The dual duct control system preferably executes a shower algorithm implemented in software to position the actuators. The shower algorithm provides a scheme for incrementally adjusting the hot and cold air flow setpoints for the VAV box so the internal environment reaches a comfortable temperature within a minimum amount of time.