Rejuvenation of subsea electrical cable insulation

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11276994
APP PUB NO 20190190242A1
SERIAL NO

16238855

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Described is a cable rejuvenation apparatus for a cable used in a subsea environment. The apparatus applies a bias signal to a conducting element of the cable, the bias signal being selected to improve the insulation properties of the cable. The bias signal is generated by a bias signal generator that includes a voltage source that generates a bias voltage having a time varying component. The bias voltage promotes an electrochemical reaction between the conducting element and the salt containing liquid of the subsea environment resulting in the formation of a barrier material at the fault location restricting further leakage current flow and enhancing the insulation resistance of the cable. The bias signal is a voltage selected such that the electrochemical reaction promoted by the bias voltage maintains the presence of the barrier material at the fault location.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
VIPER INNOVATIONS LTDPORTISHEAD BRISTOL BS20 7AW

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Douglas, Neil Irwin Clevedon, GB 4 22
Overton, Paul Robert Portishead, GB 4 1
Wright, Alistair John Bristol, GB 2 0

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Sep 15, 2025
7.5 Year Payment $3600.00 $1800.00 $900.00 Sep 15, 2029
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 15, 2033
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00