Duc M 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:

60539445, Apr 25, 2000

Filed:

Oct 9, 1997

Appl. No.:

8/947919

Inventors:

Duc Q. Tran - Trabuco Canyon CA
Russell J. Lind - San Clemente CA

International Classification:

A61F 216

US Classification:

623 6

Abstract:

New intraocular lenses (IOLs) and methods for producing IOLs are disclosed. The present methods include a combination of steps which increase the pull strength between the fixation member of the IOL and the optic of the IOL without requiring sophisticated high frequency corona discharge activation or plasma activation or other exotic activation of the fixation member or primer coating of the fixation member. The silicone polymeric optic members employed in the present invention can be formed, for example, molded, without recesses to accommodate the fixation members. Such recesses can be formed and provided with a quantity of silicone polymeric material precursor composition after the optic members are produced. The fixation members are then placed in the recesses and secured to the optic members. The present methods are straight forward, easy to practice and are cost effective in producing high quality IOLs.

US Patent:

61562416, Dec 5, 2000

Filed:

Dec 30, 1998

Appl. No.:

9/223649

Inventors:

Duc Q. Tran - Trabuco Canyon CA
Russell J. Lind - San Clemente CA

Assignee:

Allergan - Waco TX

International Classification:

B29D 1100

US Classification:

264 17

Abstract:

New intraocular lenses (IOLs) and methods for producing IOLs. The present methods include a combination of steps which increase the pull strength between the fixation member of the IOL and the optic of the IOL without requiring sophisticated high frequency corona discharge activation or plasma activation or other exotic activation of the fixation member or primer coating of the fixation member. The silicone polymeric optic members employed in the present invention can be formed, for example, molded, without recesses to accommodate the fixation members. Such recesses can be formed and provided with a quantity of silicone polymeric material precursor composition after the optic members are produced. The fixation members are then placed in the recesses and secured to the optic members. The present methods are straight forward, easy to practice and are cost effective in producing high quality IOLs.