Fluid intensifier for a dry gas seal system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9719521
SERIAL NO

13920346

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A gas supply system for a mechanical seal turns on the gas supply at a pressurized flow rate at the time of compressor case pressurization and remains on during compressor rotation until pressure is adequate. The gas supply system has an intensifier that includes a pair of mechanically inter-connected pneumatic pressure cylinders which comprise a drive cylinder that affects movement of a boost cylinder wherein the displacement of these mechanically interconnected pistons in the drive cylinder and boost cylinder intensifies the pressure being discharged by the boost cylinder and supplied as a barrier fluid to the mechanical seal. The intensifier uses a control valve and operating system which includes a fast-acting 5/2-way solenoid valve having a feedback loop connected to a control system which includes a microprocessor that controls valve actuation.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
FLOWSERVE MANAGEMENT COMPANY222 W LAS COLINAS BOULEVARD SUITE 1500 IRVING TEXAS 75039 UNITED STATES OF AMERICA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bakalchuk, Vladimir Skokie, US 4 98
Figueroa, Luis Calgary, CA 31 306
Sears, John Calgary, CA 4 50

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
7.5 Year Payment $3600.00 $1800.00 $900.00 Feb 1, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Feb 1, 2029
Fee Large entity fee small entity fee micro entity fee
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