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. 06, 2022
Filed:
Apr. 09, 2020
Dell Products L.p., Round Rock, TX (US);
Allen B. McKittrick, Cedar Park, TX (US);
Pomin Shih, Beitou District, TW;
Timothy C. Shaw, Austin, TX (US);
Dell Products L.P., Round Rock, TX (US);
Abstract
A portable information handling system has dynamic foot disposed at a bottom surface of a housing that extends and retracts to adjust cooling airflow impedance at vents disposed at the bottom surface. The dynamic foot includes an actuator in an internal cavity having opposing ramp structures interfaced by a nickel titanium wire that changes phase when heated to move the ramp structures. In the example embodiment, a push-push lock engages and disengages the ramp structures at each activation of the nickel titanium wire so that an embedded controller controls foot extension and retraction by applying current to the nickel titanium wire that heats the wire based upon detection of predetermined thermal conditions in the housing.