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.

Date of Patent:
May. 03, 2022

Filed:

Sep. 06, 2018
Applicant:

Regents of the University of Minnesota, Minneapolis, MN (US);

Inventors:

Michael C. McAlpine, Minneapolis, MN (US);

Shuangzhuang Guo, Minneapolis, MN (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L 1/14 (2006.01); H01B 1/22 (2006.01); B29C 64/393 (2017.01); B29C 64/209 (2017.01); B29C 64/106 (2017.01); G01L 1/20 (2006.01); G01L 5/22 (2006.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); B33Y 10/00 (2015.01); B29L 31/34 (2006.01); B29K 21/00 (2006.01); B29K 105/16 (2006.01); B29K 505/14 (2006.01);
U.S. Cl.
CPC ...
G01L 1/146 (2013.01); B29C 64/106 (2017.08); B29C 64/209 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); G01L 1/205 (2013.01); G01L 5/228 (2013.01); H01B 1/22 (2013.01); B29K 2021/00 (2013.01); B29K 2105/162 (2013.01); B29K 2505/14 (2013.01); B29K 2995/0005 (2013.01); B29L 2031/34 (2013.01); B29L 2031/3406 (2013.01);
Abstract

Techniques are described for additive manufacturing, e.g., 3D printing, stretchable tactile sensors. As described, the techniques may allow the stretchable tactile sensors to be 3D printed under ambient conditions via nanocomposite inks. In various embodiments, sinter-free inks are described with adjustable viscosities and electrical conductivities. Moreover, conductive compositions are described in which micron or submicron-sized silver particles are dispersed in a highly stretchable silicone elastomer. Techniques are described herein in which the inks are used 3D printing process to form tactile sensing platforms and integrated arrays.


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