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United States of America Patent
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May 10, 2016
Grant Date -
Oct 2, 2014
app pub date -
Jun 9, 2014
filing date -
Jun 12, 2012
priority date (Note) -
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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.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- HALLIBURTON ENERGY SERVICES, INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bonavides, Clovis Satyro | Houston, US | 13 | 58 |
Crawford, Donald Leon | Spring, US | 6 | 74 |
Mata, Gabriel Vicencio | Pasadena, US | 2 | 21 |
Molina, Paul Anthony | Houston, US | 3 | 24 |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 10, 2027 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
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