Frank Choufong Tsai

US Patent:

20030145069, Jul 31, 2003

Filed:

Jan 31, 2002

Appl. No.:

10/062909

Inventors:

Richard Lau - Morganville NJ, US
Frank Tsai - Morganville NJ, US
Arturo Cisneros - Lincroft NJ, US
Krishna Kant - Shrewsbury NJ, US
Bruce Siegell - Shrewsbury NJ, US

International Classification:

G06F015/177

US Classification:

709/220000, 709/224000

Abstract:

Methods, apparatus, and systems are provided to verify a configuration of a network. A first set of information relating to a virtual representation of the network and a second set of information relating to the state of the network are provided. The first and second sets of information may include information, such as information about provisioning of the network and management information base parameters, respectively. Based on the first set and second set of information, it is determined whether the virtual representation and the state of the network are consistent with each other.

US Patent:

20030145072, Jul 31, 2003

Filed:

Jan 31, 2002

Appl. No.:

10/062700

Inventors:

Richard Lau - Morganville NJ, US
Frank Tsai - Morganville NJ, US
Arturo Cisneros - Lincroft NJ, US

International Classification:

G06F015/173

US Classification:

709/223000

Abstract:

Methods and apparatus are provided to determine the configuration of a network such as its topology. Based on status information received from nodes in the network, respective labels that indicate one or more virtual connections traversing the nodes are determined. Based on the determined labels, one or more links connecting the nodes are identified. The configuration of the network is then determined based on the identified links.

US Patent:

20030145081, Jul 31, 2003

Filed:

Jan 31, 2002

Appl. No.:

10/062904

Inventors:

Richard Lau - Morganville NJ, US
Frank Tsai - Morganville NJ, US
Arturo Cisneros - Lincroft NJ, US

International Classification:

G06F015/173

US Classification:

709/224000

Abstract:

Methods and apparatus are provided to determine performance of a network. A first measurement relating to a first layer of communications in the network and a second measurement relating to a second layer of communications in the network are provided. Based on the first and second measurements, a set of parameters is generated. The performance of the network is then determined based on the generated set of parameters.

US Patent:

53948378, Mar 7, 1995

Filed:

Feb 25, 1994

Appl. No.:

8/202232

Inventors:

Frank W. Tsai - San Marino CA
Paul A. Bock - Upland CA

International Classification:

F22B 1500

US Classification:

12223523

Abstract:

A furnace comprising a lower radiant section and an upper convection section, the lower section having associated fuel burners; generally vertically extending first tubular structure suspended in the first section; second tubular structure extending generally horizontally relative to the first section and suspending the first tubular structure; and grid structure extending generally horizontally and supporting the second tubular structure; whereby hot combustion gases produced by the burners flow upwardly in the first section and past the first and second tubular structure and the grid structure to the upper convection section; and the second tubular structures and/or the grid structure are cooled by circulation of fluids therein.

US Patent:

47924365, Dec 20, 1988

Filed:

May 8, 1987

Appl. No.:

7/047210

Inventors:

Frank W. Tsai - San Marino CA

Assignee:

Kinetics Technology International - Monrovia CA

International Classification:

C10G 920

US Classification:

422111

Abstract:

A hydrocarbon converter furnace has an upper convection heating zone and a lower radiant heating zone, and tubing extends in those zones to convey a fluid hydrocarbon feed and steam in sequence through the convection and radiant heating zones. The tubing includes a feed section and branches therefrom in the radiant section of the furnace, the feed section and branches arranged so that the hydrocarbon and steam flow from the feed section to said branches; also provided is valving for controlling the relative rates of flow in the branches to reduce differential coking in the branches.

US Patent:

48790206, Nov 7, 1989

Filed:

Oct 17, 1988

Appl. No.:

7/258771

Inventors:

Frank W. Tsai - San Marino CA

Assignee:

Kinetics Technology International - Monrovia CA

International Classification:

C10G 916
C10G 936

US Classification:

208130

Abstract:

A hydrocarbon converter furnace has an upper convection heating zone and a lower radiant heating zone, and tubing extends in those zones to convey a fluid hydrocarbon feed and steam in sequence through the convection and radiant heating zones. The tubing includes a feed section and branches therefrom in the radiant section of the furnace, the feed section and branches arranged so that the hydrocarbon and steam flow from the feed section to said branches; also provided is valving for controlling the relative rates of flow in the branches to reduce differential coking in the branches.

US Patent:

51079216, Apr 28, 1992

Filed:

May 19, 1989

Appl. No.:

7/354368

Inventors:

Frank W. Tsai - San Marino CA

International Classification:

F28F 1308
F28F 906

US Classification:

165108

Abstract:

Heat exchanger apparatus for quenching hot hydrocarbon fluid feeds, of different compositions, so as to minimize coking including a shell, and baffle structure in the shell, defining spaced first and second chambers and primary inlet and outlet ports to flow the fluid to and from the shell via the two chambers, the shell and baffle structure also defining a third chamber between the first and second chambers, with secondary inlet and outlet ports communicating with the third chamber to flow quench fluid to and from the third chamber, and pipes of different bore sizes extending through the third chamber, and communicating between the first and second chambers, for passing the hydrocarbon fluid in a selected path or paths via the pipes and first and second chambers, in flowing between the primary inlet and outlet ports.

US Patent:

50570102, Oct 15, 1991

Filed:

May 15, 1990

Appl. No.:

7/523384

Inventors:

Frank W. Tsai - San Marino CA

International Classification:

F27D 1700

US Classification:

432179

Abstract:

A method of operating an industrial furnace, the steps that include providing a process heating zone containing heat exchange tubing for flowing process fluid through the zone; providing first and second fuel combustion zones, and first and second heat regeneration zones; during a first time interval flowing a first stream of air through the first regeneration zone to be preheated therein, flowing the preheated air stream to the first combustion zone to support combustion of fuel therein producing a flame and hot combustion gases, transferring heat from the flame and the hot gases to the heat exchange tubing in the process heating zone, and then flowing the hot gases to the second heat regeneration zone for extracting heat from the gases at the second regeneration zone; and during a second time interval flowing a second stream of air through the second regeneration zone to be preheated therein, flowing the second preheated air stream to the second combustion zone to support combustion of fuel therein producing hot combustion gases, transferring heat from the hot gases to the heat exchange tubing in the process heating zone, and then flowing the hot gases to the first heat regeneration zone for extracting heat from the gases at the first regeneration zone; and repeating the air flow steps, alternately.