Gabriel Bugarin Mata

US Patent:

20130327514, Dec 12, 2013

Filed:

Jun 12, 2012

Appl. No.:

13/494075

Inventors:

Clovis Satyro Bonavides - Houston TX, US
Donald Leon Crawford - Spring TX, US
Paul Anthony Molina - Houston TX, US
Gabriel Vicencio Mata - Pasadena TX, US

International Classification:

E21B 43/1185
B23P 17/04
E21B 43/116

US Classification:

166 55, 166 651, 29428

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.

US Patent:

20140290948, Oct 2, 2014

Filed:

Jun 9, 2014

Appl. No.:

14/299751

Inventors:

- Houston TX, US
Donald Leon Crawford - Spring TX, US
Paul Anthony Molina - Houston TX, US
Gabriel Vicencio Mata - Pasadena TX, US

Assignee:

HALLIBURTON ENERGY SERVICES, INC. - Houston TX

International Classification:

E21B 43/1185

US Classification:

166297, 166 552, 29428

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.