Long H Pham

20030010836, Jan 16, 2003

Jul 16, 2001

09/905477

Long Pham - Westminster CA, US

B05B017/08

239/017000, 239/590000, 239/553300, 239/590300

The main use of the laminar device is for fountain displays. When water flows though the surge suppressor assembly and laminar assembly, this device remove all the turbulent in fluid flow, and display an extreme laminar stream of water. The laminar device consists of two assemblies: surge suppressor assembly and laminar assembly. The surge suppressor assembly is however not needed if the supply water system does not have a lot of pressure spikes. A surge suppressor will remove the pressure spikes in the water system. The surge suppressor is an air/water chamber. In that air/water chamber, the compressible air will either compress or expand accordingly to the line water pressure and absorb the water pressure spikes. The laminar assembly is a large diameter tank that contains three major components. The first component is a turbulent remover that will remove the turbulent in the fluid and create an even fluid flow. The turbulent remover is a membrane with numerous 50 microns diameter holes. This perforated membrane will have an open area large enough to prevent substantial pressure drop. The second component is a flow anti-rotation device that will prevent fluid flow to rotate. This device consists of numerous ⅛″ diameter tubes of 1″-3″ length. The last component is orifice plate. The orifice plate with a machined tapered-out hole will help in produce a clean and smooth water stream since this configuration will prevent water turbulent at the hole edge.

62574973, Jul 10, 2001

Jul 19, 1999

9/357120

Long N. Pham - Westminster CA

B05B 1704
B05B 1708

239 17

The main use of the water-ejecting device is for fountain displays. The water-ejecting device is submerged, at least in part, in a fountain pool and is comprised of a water tank with a small, smooth, tapered open end at the top. The bottom of the water tank contains an integral, spring loaded, sliding cylinder to provide automatic water tank refilling, and hydraulic cushion to prevent vibration and noise. A computer-controlled air control valve connects the lower portion of the water tank to a supply of air under pressure. When the air control valve opens, the air under pressure will push water through the taper open end at the top, and display a stream of water. When the air control valve closes, the said water tank will be refilled automatically by the integral spring loaded sliding cylinder.

20140126761, May 8, 2014

Nov 7, 2012

13/671442

LONG NGOC PHAM - Los Angeles CA, US

H04R 1/28

381353

A speaker apparatus for producing sound comprising of a housing, a plurality of covers, a speaker driver, a radiator, a resonator and a resonator stand which in combination provide an enhanced low frequency sound output.