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:
Mar. 08, 2011
Filed:
Aug. 28, 2008
Brian Wayne Hurst, Mineral Wells, TX (US);
Brian Wayne Hurst, Mineral Wells, TX (US);
Other;
Abstract
Pressure-actuated electrical switches are provided that comprise a housing having a slidable piston therein. The slidable piston slides from a first position to a second position and in so doing switches an electrical path from a first electrical contact and a second electrical contact to an electrical path between the first electrical contact and a third electrical contact. Suitable applications of such switches include any application in which a pressure wave is used to actuate an electrical switch. The pressure-actuated electrical switches of the present invention are especially adapted for use in controlling successive detonations in a downhole perforation gun, as explosive gases and pressure waves are used to actuate the slidable piston so as to trigger a subsequent detonation charge. Perforation guns utilizing these pressure-actuated electrical switches and corresponding methods of use are also provided herein.