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:
Oct. 16, 2018
Filed:
Aug. 03, 2015
The Boeing Company, Chicago, IL (US);
Frederick T. Calkins, Renton, WA (US);
Pruthvish V. Patel, Essex, MD (US);
David A. Rathke, Everett, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
Methods and systems for a butterfly valve including a shape memory alloy (SMA) tube trained for rotation are presently disclosed. The SMA tube has a ground end coupled to a housing and rotating end coupled to a plate. The SMA tube is configured to rotate in a first direction in response to a first temperature change of the SMA tube. When rotating in the first direction, the rotating end of the SMA tube rotates and deflects the plate to rotate in a direction that permits a medium to flow through the valve. The SMA tube is also configured to rotate in a second direction in response to a second temperature change of the SMA tube. When rotating in the second direction, the rotating end of the SMA tube rotates and deflects the plate to rotate in a direction that does not permits a medium to flow through the valve.