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. 03, 2020
Filed:
Feb. 15, 2018
Johnson Controls Technology Company, Auburn Hills, MI (US);
Hendrikus C. Van Eldik, Leeuwarden, NL;
Nathan B. Emlen, Milwaukee, WI (US);
John P. Patterson, Waukesha, WI (US);
Philip L. Bushong, Franklin, WI (US);
Troy L. Wert, Spring Grove, IL (US);
Roy M. Rader, Fredonia, WI (US);
Theodore J. Houck, III, Shorewood, WI (US);
Johnson Controls Technology Company, Auburn Hills, MI (US);
Abstract
A pressure control device for controlling a compressor includes a pressure sensor configured to measure pressure of a pressure line and a processing circuit. The processing circuit is configured to receive the measured pressure of the pressure line from the pressure sensor and control the compressor based on a set-point and the measured pressure. The pressure control device includes a mechanical switch sensitive to the pressure of the pressure line and configured to move between an open position and a closed position responsive to the pressure of the pressure line. Movement of the mechanical switch into one of the open position or the closed position causes the compressor to turn off and overrides the control of the compressor by the processing circuit.