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:
Feb. 19, 2013
Filed:
Jul. 14, 2010
James T. Walker, Palo Alto, CA (US);
Christopher I. Walker, Pasadena, CA (US);
Tony G. Tadin, Woodside, CA (US);
Arjen Sundman, Lake Oswego, OR (US);
James T. Walker, Palo Alto, CA (US);
Christopher I. Walker, Pasadena, CA (US);
Tony G. Tadin, Woodside, CA (US);
Arjen Sundman, Lake Oswego, OR (US);
Amfit, Inc, Vancouver, WA (US);
Abstract
An electrostatic sensor device including a first sensor element and a second sensor element; a dielectric substrate material formed in two layers, and a sensing hole which penetrates the dielectric substrate material from its upper surface to its lower surface. The first sensor element is receivable in the sensing hole; and second sensor element includes a first conducting ring disposed on an upper surface of said dielectric substrate and surrounding said sensing hole. The second conducting ring is disposed on a lower surface of the dielectric substrate and surrounds the sensing hole. The first sensor element and the second sensor are capable of producing a variable response when the first sensor element is disposed in the sensing hole.