Centrifugal pump for handling abrasive-laden fluid

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9638207
APP PUB NO 20160090992A1
SERIAL NO

14865305

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A centrifugal pump for handling abrasive-laden fluid is described. A centrifugal pump system for handling abrasive-laden fluid includes an impeller including an annular balance ring extending longitudinally on a top side of the impeller and an annular skirt extending longitudinally on a bottom side of the impeller, one of the annular balance ring, the annular skirt or a combination thereof having portions defining a plurality of apertures, wherein the plurality of apertures form an abrasive-media relief path that bypasses at least a portion of a clearance gap and merges with a primary working-fluid flow path. A centrifugal pump impeller includes a bottom shroud, an annular skirt extending longitudinally upstream from the bottom shroud, the annular skirt encircling a central hub, and the annular skirt having an aperture extending through a thickness of the annular skirt.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
HALLIBURTON ENERGY SERVICES INC3000 N SAM HOUSTON PARKWAY E HOUSTON TX 77032

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gottschalk, Thomas John Houston, US 22 210
Hall, Clint Franklin Claremore, US 2 14
Jayaram, Shiv Houston, US 8 107
Nowitzki, Wesley John Broken Arrow, US 33 253

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 Nov 2, 2024
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 2, 2028
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