Dan Nguyen

Address:

6135 Gladewell Dr, Houston, TX 77072

VIN:

2T1BU4EE1AC416154

Make:

TOYOTA

Model:

COROLLA

Year:

2010

Address:

13431 Durbridge Trl Dr, Houston, TX 77065

VIN:

2T2GK31U27C003926

Make:

LEXUS

Model:

RX 350

Year:

2007

Address:

2425 Sage Rd APT 140, Houston, TX 77056

Phone:

2817456870

VIN:

4JGBB22E27A197406

Make:

MERCEDES-BENZ

Model:

M-CLASS

Year:

2007

Address:

13602 Golden Cir Way, Houston, TX 77083

VIN:

1HGCM66447A034866

Make:

HONDA

Model:

ACCORD

Year:

2007

US Patent:

6558139, May 6, 2003

Filed:

Dec 8, 2000

Appl. No.:

09/733257

Inventors:

Dan Nguyen - Houston TX
Gary Templin - Spring TX
Brannon Baskin - Magnolia TX

Assignee:

Chemical Seal Packing, Inc.

International Classification:

F04B 1700

US Classification:

417420, 41742312, 415229

Abstract:

A self lubricating bearing for use submerged in cryogenic fluids. The self-lubricating bearing comprises hardened races, hardened rolling elements and polymeric retainers or cages. More particularly, the rolling elements may be hardened balls, and the polymeric cages may include PEEK. In particular a bearing for self lubricated use in seal-less, magnetic drive pump for pumping fluids at very low temperatures and cryogenic temperatures below about -100 degrees centigrade such as liquid nitrogen and temperatures below about -150 degrees centigrade such as liquefied natural gas (LNG). An environment for submerged use of such a bearing may be a magnetically driven cryogenic pump with a housing having an intake and exhaust with a back plate mounted therein in which a shaft is journaled in self-lubricating bearings having hardened stainless steel or ceramic balls, stainless steel races and polymeric retainers or cages for retaining the balls for rolling contact in the races. An impeller is mounted on the first end and a first magnet is mounted on the second end of the shaft.

US Patent:

58105700, Sep 22, 1998

Filed:

Jan 6, 1997

Appl. No.:

8/778952

Inventors:

Dan Dinh Nguyen - Houston TX

Assignee:

Chemical Seal & Packing, Inc. - Houston TX

International Classification:

F04B 3908

US Classification:

417505

Abstract:

A novel reciprocating pump for cryogenic fluids having a super-low NPSH requirement. The pump has a spring-loaded intake valve made of magnetic material and a reciprocating piston having a permanent magnet at its head end. The intake valve is positioned such that when the piston is at or near the top of its stroke, the magnet will tend to pull said intake valve into an open position. The pump also preferably includes a mechanical spring energized (MSE) seal on the upper end of the piston.

US Patent:

60565209, May 2, 2000

Filed:

Jul 6, 1998

Appl. No.:

9/110584

Inventors:

Dan Dinh Nguyen - Houston TX
Gary A. Templin - Houston TX

Assignee:

Chemical Seal & Packing, Inc. - Houston TX

International Classification:

F04B 1700

US Classification:

417420

Abstract:

A seal-less, magnetic drive pump for pumping fluids at very low temperatures such as liquid nitrogen and liquefied natural gas (LNG). The pump includes a housing having an intake and exhaust with a back plate mounted therein in which a shaft is journaled. An impeller is mounted on the first end and a first magnet is mounted on the second end of the shaft. A second magnet is positioned so as to rotate around the first magnet to rotate the impeller. The first magnet is encased in a material having a coefficient of thermal expansion greater than that of the magnetic material.

US Patent:

61832197, Feb 6, 2001

Filed:

Jul 6, 1998

Appl. No.:

9/110581

Inventors:

Dan Dinh Nguyen - Houston TX
Gary A. Templin - Houston TX

Assignee:

Chemical Seal & Packing, Inc. - Houston TX

International Classification:

F04B 3504

US Classification:

417420

Abstract:

A seal-less, magnetic drive pump for pumping fluids at very low temperatures below about -100 degrees centigrade such as liquid nitrogen and at cryogenic temperatures below about -150 degrees centigrade such as liquefied natural gas (LNG). The pump includes a housing having an intake and exhaust with a back plate mounted therein in which a shaft is journaled in self-lubricating ball bearings having metallic balls and races and having polymeric ball retainers. An impeller is mounted on the first end and a first magnet is mounted on the second end of the shaft. A second magnet is positioned so as to rotate around the first magnet to rotate the impeller. The first magnet is encased in a material having a coefficient of thermal expansion greater than that of the magnetic material.

US Patent:

59964723, Dec 7, 1999

Filed:

Oct 7, 1996

Appl. No.:

8/726649

Inventors:

Dan Dinh Nguyen - Houston TX
Donald Craig Tooms - Houston TX

Assignee:

Chemical Seal and Packing, Inc. - Houston TX

International Classification:

F16J 900

US Classification:

92245

Abstract:

A novel reciprocating pump for cryogenic fluids. The pump has a cylinder sleeve, head, intake valve, discharge valve, and a reciprocating piston including a mechanical spring energized seal having a generally U-shaped jacket and a helical spring in the bight of the U.