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:
Feb. 12, 2019
Filed:
Sep. 23, 2016
Amazon Technologies, Inc., Seattle, WA (US);
Felipe Enrique Ortega Gutierrez, Tacoma, WA (US);
Gary S. Shankman, Olympia, WA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Methods and systems for detecting passive failure in a cooling system that employs two or more actuators for moving a fluid can include outputting a control signal to cause the movement of an actuator, where the control signal is associated with an expected rate of movement of the actuator; receiving information concerning an output signal from the actuator that is associated with an actual rate of movement of the actuator; and comparing the actual rate of movement of the actuator with the expected rate of movement of the actuator. A passive failure can be detected when the actual rate of movement of the actuator falls outside a nominal range that is based on the control signal.