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. 28, 2021
Filed:
Dec. 04, 2019
Facebook Technologies, Llc, Menlo Park, CA (US);
Andrew Spann, Needham, MA (US);
Eric Schmitt, Needham, MA (US);
Nagi Elabbasi, Framingham, MA (US);
Kenneth Diest, Kirkland, WA (US);
Katherine Marie Smyth, Seattle, WA (US);
Renate Eva Klementine Landig, Seattle, WA (US);
Andrew John Ouderkirk, Redmond, WA (US);
Facebook Technologies, LLC, Menlo Park, CA (US);
Abstract
An example device includes a nanovoided polymer element, which may be located at least in part between the electrodes. In some examples, the nanovoided polymer element may include anisotropic voids, including a gas, and separated from each other by polymer walls. The device may be an electroactive device, such as an actuator having a response time for a transition between actuation states. The gas may have a characteristic diffusion time (e.g., to diffuse half the mean wall thickness through the polymer walls) that is less than the response time. The nanovoids may be sufficiently small (e.g., below 1 micron in diameter or an analogous dimension), and/or the polymer walls may be sufficiently thin, such that the gas interchange between gas in the voids and gas absorbed by the polymer walls may occur faster than the response time, and in some examples, effectively instantaneously.