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:
Jul. 26, 2016
Filed:
Mar. 18, 2011
Harsha Prahlad, Cupertino, CA (US);
Ronald E. Pelrine, Longmont, CO (US);
Annjoe Wong-foy, San Francisco, CA (US);
Roy D. Kornbluh, Palo Alto, CA (US);
Brian K. Mccoy, Sunnyvale, CA (US);
Harsha Prahlad, Cupertino, CA (US);
Ronald E. Pelrine, Longmont, CO (US);
Annjoe Wong-Foy, San Francisco, CA (US);
Roy D. Kornbluh, Palo Alto, CA (US);
Brian K. McCoy, Sunnyvale, CA (US);
SRI International, Menlo Park, CA (US);
Abstract
An electroadhesive device includes an outer surface adapted to interface with a surface of a foreign substrate, a plurality of electrodes, and a semi-conductive insulation material disposed adjacent to at least one of the electrodes. Each electrode has a respective conductive volume and is configured to apply a voltage at a respective location of the outer surface, and the difference in voltage between applied voltages includes an electrostatic adhesion voltage that produces an electrostatic force between the device and the substrate that is suitable to maintain a current position of the device relative to the substrate. The insulation material can be polyurethane or any other suitable material having a resistance of about 10to 10ohms*m. The insulation material effectively operates to expand the conductive volume of the electrodes when they are actuated.