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. 03, 2015
Filed:
Jun. 12, 2012
Clovis Satyro Bonavides, Houston, TX (US);
Donald Leon Crawford, Spring, TX (US);
Paul Anthony Molina, Houston, TX (US);
Gabriel Vicencio Mata, Pasadena, TX (US);
Clovis Satyro Bonavides, Houston, TX (US);
Donald Leon Crawford, Spring, TX (US);
Paul Anthony Molina, Houston, TX (US);
Gabriel Vicencio Mata, Pasadena, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A first end of a conductive spring is embedded in a wall of a large chamber of a piston housing. The spring is held in tension by a second end of the spring being pinned against a bead contact by a trigger pin. The diameter of the piston and a tensile breaking strength of the trigger pin are selected so that the trigger pin is breakable and the tension in the spring is releasable upon the presence of a predetermined pressure difference between a pressure on the contact side of the piston and a pressure on the pinning side of the piston. Release of tension in the spring closes an electrical circuit.