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:
Dec. 27, 2005
Filed:
Jan. 14, 2004
Darrell W. Horner, Oro Valley, AZ (US);
Gerard L. Mccoy, Tucson, AZ (US);
Kenneth M. Gallagher, Tucson, AZ (US);
Timothy C. Biss, Tucson, AZ (US);
Darrell W. Horner, Oro Valley, AZ (US);
Gerard L. McCoy, Tucson, AZ (US);
Kenneth M. Gallagher, Tucson, AZ (US);
Timothy C. Biss, Tucson, AZ (US);
Honeywell International, Inc., Morristown, NJ (US);
Abstract
A pressure control system including an inflow unit for admitting pressurized air into a cabin, an outflow unit including a motor for operating a valve to discharge air from the cabin at a predetermined rate based on an motor control signal that sets the motor speed, a control unit, and an air pressure sensor within the cabin for determining a pressure signal. The control unit receives the pressure signal and computes a pressure rate of change error signal to set the motor control signal. The outflow unit, control unit, and air pressure sensor form a feedback control loop independent of motor speed, valve speed, or valve position feedback.