Hung M Pham

US Patent:

20040201486, Oct 14, 2004

Filed:

Apr 10, 2003

Appl. No.:

10/410844

Inventors:

Thomas Knowles - Norco CA, US
Rakesh Malhotra - Chino Hills CA, US
Hung Pham - Rancho Cucamonga CA, US
John Sharkey - Elgin IL, US

International Classification:

G08B021/00

US Classification:

340/657000, 246/020000, 340/641000

Abstract:

A solid state crossing controller for a railroad crossing signal system with two independent outputs for controlling illumination of lamps in the signal system share a common neutral or return wire, with sensing of a common neutral or return line shared by the two independent outputs to determine any loss of the neutral line. When a failure has been detected in the neutral line, the controller modifies the voltages for the lamps in the signaling system for better illumination of the lamps during the failure condition, such as to the highest voltage available from a battery in the system. Upon detection of the failure in the neutral line, the controller may provide a call or message that there is a failure in the system that is in need of repair. If the failure in the neutral line is intermittent, the controller will resume normal operation after that train, has cleared the crossing. However, a call or message that a failure has occurred in the neutral line is provided. Tests for the failure will be repeated when the next train approaches the crossing. Related methods for determining whether a failure has occurred in the neutral line are also disclosed.

US Patent:

20210331101, Oct 28, 2021

Filed:

Apr 23, 2021

Appl. No.:

17/238827

Inventors:

- Sugar Land TX, US
Hung Ngoc Pham - Houston TX, US

International Classification:

B01D 35/30
B01D 36/00

Abstract:

The present invention provides a liquid eliminating cartridge that is formed by snapping two mating pieces together. The pieces may include a body portion and a top portion and may together clamp an oleophobic/hydrophobic membrane there between.

US Patent:

20140136961, May 15, 2014

Filed:

Nov 13, 2012

Appl. No.:

13/675891

Inventors:

Thuy Quang Mai - Houston TX, US
Binh Quang Mai - Dickinson TX, US
Hung Van Pham - Houston TX, US

International Classification:

G06F 17/22

US Classification:

715249

Abstract:

Methods, systems, and apparatuses are disclosed for a computer-implemented method for facilitating electronic data interchange (“EDI”) communication. An EDI document from a first trading partner is in a first format, with data in a plurality of fields. The fields are mapped to fields of an EDI standard. The data in the mapped fields are translated to an intermediate format to create an intermediate format file. Rules, which may be customized, may be applied to the intermediate format file. The rules may include business rules customized for the first trading partner, math rules and/or logic rules. The intermediate format file may be verified to determine whether it complies with the EDI standard and/or the business rules of the first trading partner. The data from the intermediate format to a second format compatible with a computer system of a second trading partner, to create a second format file.