Duc Van Tran

US Patent:

6675832, Jan 13, 2004

Filed:

May 7, 2003

Appl. No.:

10/431475

Inventors:

Duc Thanh Tran - Corona CA
Stanley F. Miller - Orange CA
Stephen G. Freitas - Mission Viejo CA

Assignee:

Control Components, Inc. - Rancho Santa Margarita CA

International Classification:

F16K 4704

US Classification:

137613, 13762532, 251127, 251368

Abstract:

Disclosed is a blowdown valve for a boiler system for removing fluid that contains debris. The blowdown valve comprises a housing for a shutoff valve and a reversible throttle valve. The shutoff valve is fluidly connected to a fluid inlet that, in turn, is connected to the boiler system. Each one of the shutoff and throttle valves includes a rotatable valve ball having a bore formed therethrough. Rotation of the valve ball alternately blocks and unblocks fluid flowing therethrough. The throttle valve bore includes first and second bore ends. A bore insert is disposed within the bore between first and second debris zones. The bore insert includes passages configured for reducing fluid energy. The first and second debris zones entrap debris therewithin. The throttle valve reverses positions of the first and second debris zones such that entrapped debris may be flushed out of the fluid outlet.

US Patent:

6868865, Mar 22, 2005

Filed:

Apr 9, 2003

Appl. No.:

10/410218

Inventors:

Duc Thanh Tran - Corona CA, US

Assignee:

Control Components, Inc. - Rancho Santa Margarita CA

International Classification:

F16K005/08

US Classification:

13762532

Abstract:

A valve assembly comprising a rotary closure element which defines an axis of rotation and is selectively movable between a fully open position and a fully closed position. Mounted to and movable with the rotary closure element is an impedance assembly. The impedance assembly defines an inflow end and an outflow end, and comprises a plurality of fluid passageways of varying noise attenuating capability which extend from the inflow end to the outflow end. Also partially defined by the impedance assembly is a flow opening which extends from the inflow end to the outflow end.

US Patent:

6886596, May 3, 2005

Filed:

Oct 29, 2002

Appl. No.:

10/282667

Inventors:

Duc Thanh Tran - Corona CA, US

Assignee:

Control Components, Inc. - Rancho Santa Margarita CA

International Classification:

F16K001/06

US Classification:

13762533, 251118

Abstract:

A valve assembly comprising a rotary closure element which defines an axis of rotation and is selectively movable between a fully open position and a fully closed position. Mounted to and movable with the rotary closure element is an impedance assembly. The impedance assembly defines an inflow end and an outflow end, and comprises a plurality of fluid passageways of varying noise attenuating capability which extend from the inflow end to the outflow end. Also partially defined by the impedance assembly is a flow opening which extends from the inflow end to the outflow end.

US Patent:

6913042, Jul 5, 2005

Filed:

May 13, 2003

Appl. No.:

10/437213

Inventors:

Duc Thanh Tran - Corona CA, US

Assignee:

Control Components, Inc. - Rancho Santa Margarita CA

International Classification:

F16K011/22

US Classification:

1376253, 251118

Abstract:

A valve assembly comprising a rotary closure element which defines an axis of rotation and is selectively movable between a fully open position and a fully closed position. Mounted to and movable with the rotary closure element is an impedance assembly. The impedance assembly defines an inflow end and an outflow end, and comprises a plurality of fluid passageways of varying noise attenuating capability which extend from the inflow end to the outflow end. Also partially defined by the impedance assembly is a flow opening which extends from the inflow end to the outflow end. A retainer bracket is disposed within the flow opening and is cooperatively engaged to both the closure element and the impedance assembly.

US Patent:

6923210, Aug 2, 2005

Filed:

Jul 19, 2002

Appl. No.:

10/198970

Inventors:

Duc Thanh Tran - Corona CA, US

Assignee:

Control Components, Inc. - Rancho Santa Margarita CA

International Classification:

F16K005/10

US Classification:

1376253, 13762532

Abstract:

A valve assembly comprising a rotary closure element which defines an axis of rotation and is selectively movable between a fully open position and a fully closed position. Mounted to and movable with the rotary closure element is an impedance assembly. The impedance assembly defines an inflow end and an outflow end, and comprises a plurality of fluid passageways which extend from the inflow end to the outflow end. Also partially defined by the impedance assembly is a flow opening which extends from the inflow end to the outflow end. The fluid passageways and the flow opening are oriented relative to each other such that a portion of a flow through the valve assembly is directed into the fluid passageways and a portion of the flow is directed through the flow opening when the closure element is in the fully open position.

US Patent:

7011109, Mar 14, 2006

Filed:

Apr 12, 2002

Appl. No.:

10/122276

Inventors:

Duc Thanh Tran - Corona CA, US
Raymond R. Newton - Rancho Santa Margarita CA, US
Paul Smirl - Dana Point CA, US
Roger Bey - Illzach, FR
Tina Benac - Dana Point CA, US

Assignee:

Control Components, Inc. - Rancho Santa Margarita CA

International Classification:

F16K 11/087

US Classification:

13762532, 251118

Abstract:

A valve assembly comprising a rotary closure element which defines an axis of rotation and is selectively movable between a fully open position and a fully closed position. Mounted to and movable with the rotary closure element is an impedance assembly. The impedance assembly defines an inflow end and an outflow end, and comprises a plurality of tortuous passageways which extend from the inflow end to the outflow end. Also fully or partially defined by the impedance assembly is an enlarged flow opening which extends from the inflow end to the outflow end. The tortuous passageways and the flow opening are oriented relative to each other such that a portion of a flow through the valve assembly is directed into the tortuous passageways and a portion of the flow is directed through the flow opening when the closure element is in the fully open position.

US Patent:

7177843, Feb 13, 2007

Filed:

Nov 18, 2002

Appl. No.:

10/298222

Inventors:

Mai Nguyen - Buena Park CA, US
Joseph Zhung Yee Fung - Cerritos CA, US
Duc Tran - Westminster CA, US

Assignee:

ContentGuard Holdings, Inc. - Wilmington DE

International Classification:

G06Q 99/00
H04K 1/00
H04L 9/00

US Classification:

705 51, 705 52, 705 53, 705 54, 705 55, 705 56, 705 57, 705 58, 705 59, 705 50, 380201, 707 9, 7071041, 713182, 713184, 713185, 713186, 713183

Abstract:

A rights expression system and method for facilitating creation and/or modification of rights expressions in a rights expression language based on one or more schemas are provided. In one embodiment, the rights expression system comprises selectable layouts corresponding to a rights granting paradigm and comprises type selection components. Each type selection component is adapted to present REL terms and input components. The input components allow input of parameters required by the selected REL term. The rights expression system also includes a data engine that generates rights expressions in proper REL semantics defined by the one or more schemas based on the selected layout and parameter inputted. The type selection components and input components may be type selectors and input forms, respectively, that are implemented in a graphical user interface.