Robert Cheng Chen

US Patent:

6481917, Nov 19, 2002

Filed:

May 2, 2000

Appl. No.:

09/562796

Inventors:

Robert P. Chen - Torrance CA
Phil Oyoung - Fullerton CA

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

B25G 320

US Classification:

4033743, 403355, 403356, 403357, 403358, 403373, 403370, 415 99, 416244 R, 416244 A

Abstract:

An apparatus for preventing movement of a wheel on a shaft comprises a nut concentrically disposed on the shaft. A spring is disposed on the shaft and is operatively adjacent to the nut such that the spring can be biased towards the wheel. A first clamping ring is concentrically disposed on the wheel, with the first clamping ring being operatively adjacent the spring. A second clamping ring is operatively adjacent to the side of the wheel that is opposite to the first clamping ring, and a raceway is disposed between the shaft and wheel.

US Patent:

6619634, Sep 16, 2003

Filed:

Jun 22, 2001

Appl. No.:

09/891872

Inventors:

Robert Chen - Cerritos CA
Pinchieh Feng - Chang Hua Sheng, TW

Assignee:

Razor USA, LLC - Cerritos CA

International Classification:

F16F 914

US Classification:

267 6417

Abstract:

A self-chargeable pneumatic cylinder comprises a cylinder body, a working piston disposed inside the cylinder body, and a hollow elongate shaft coupled to the working piston and extending outward from the cylinder body. The hollow interior of the shaft contains a pump mechanism for charging the pneumatic cylinder with a gas. The pump mechanism comprises a pumping piston that is axially slidable within the interior of the shaft and a pumping rod coupled to the pumping piston that is extendable out of the shaft for facilitating actuation of the pump. As the pump is manually actuated, pressurized gas flows into the cylinder body across a one-way valve to charge the pneumatic cylinder as desired.

US Patent:

6789998, Sep 14, 2004

Filed:

Sep 6, 2002

Appl. No.:

10/236791

Inventors:

Robert P. Chen - Torrance CA
Sasha M. Ablitt - Hermosa Beach CA
Ramesh C. Doshi - La Palma CA

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

F01D 2504

US Classification:

415 1, 415119, 4152082, 415220

Abstract:

A system and method for reducing blade strain on the fan blades of an air cycle machine is proposed. The method involves a strut arrangement that is positioned in a cylindrical air passage upstream from the fan assembly. The strut arrangement includes at least three struts, wherein the at least three struts are separated by unequal degrees of separation along the circumference of the air passage. The strut arrangement effectively reduces the strain on the blades of the fan assembly.

US Patent:

6827673, Dec 7, 2004

Filed:

Jun 22, 2001

Appl. No.:

09/887553

Inventors:

Robert Chen - Cerritos CA
Pinchieh Feng - Chang Hua Sheng, TW
Robert A. Hadley - Yorba Linda CA

Assignee:

Razor USA LLC - Cerritos CA

International Classification:

A63B 2508

US Classification:

482 77, 482112

Abstract:

A pogo stick comprising a handlebar, a grip portion, and a footrest that is collapsible into a small volume for easy transportation and compact storage. The handlebar is provided with at least one elongate telescoping member, the grip portion is provided with removable grips, and the footrest is provided with pivotally mounted plates. The collapsible pogo stick incorporates a pneumatic spring of variable stiffness for accommodating users of different body weights. The pneumatic spring includes a pressure cylinder and a shaft extending out of the cylinder for engagement with the ground. The pneumatic spring includes a self-charging mechanism such that the cylinder may be charged without the use of an external pump.

US Patent:

7052183, May 30, 2006

Filed:

Jun 15, 2004

Appl. No.:

10/869804

Inventors:

Robert P. Chen - Torrance CA, US
Sam Shiao - Cerritos CA, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

F16C 19/06

US Classification:

384536, 2671413

Abstract:

A composite resilient mount for rolling element bearings, comprising a composite hoop portion, and including a plurality of circumferentially dispersed inner pads and outer pads defining a plurality of arcuate beam portions disposed circumferentially between adjacent pads. The hoop portion and the inner and outer pads, may comprise a circumferentially wound fiber, such as a carbon fiber, and a resin. The inner and outer pads may be rounded, feathered or otherwise configured to eliminate edges from the inner and outer pads, thereby preventing damage to adjacent components. A method for providing damping to a rolling element bearing is also disclosed.

US Patent:

7075204, Jul 11, 2006

Filed:

Aug 6, 2003

Appl. No.:

10/637373

Inventors:

Sam Shiao - Cerritos CA, US
Robert P. Chen - Torrance CA, US

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

H02K 21/12

US Classification:

31015622, 31015612, 31015618, 31015628

Abstract:

An inner sleeve, having threads on each end, is formed on a motor or generator rotor. A pair of stub shafts are threadably attached to the inner sleeve at each end and a magnet is placed in between. The stub shafts are turned on the inner sleeve to bring them together, thereby creating an axial compressive force on the magnet. By keeping the magnet in a compressive state at all times, cracking of the magnet is prevented, thus keeping the rotor stable during use of the motor or generator. An outer sleeve is shrunk-fit around the magnet and stub shafts to provide a further radial force on the rotor. The magnet assembly of the present invention also enlarges the required radial shrink-fit tolerance of the outer sleeve on the magnet, thereby reducing costs conventionally required to match the outer sleeve to the magnet within close tolerances.

US Patent:

7195417, Mar 27, 2007

Filed:

Jul 21, 2004

Appl. No.:

10/897137

Inventors:

Sam Shiao - Cerritos CA, US
Robert P. Chen - Torrance CA, US

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

F01D 1/26

US Classification:

4034081, 416198 A

Abstract:

A composite tie rod comprises a plurality of coated fiber bundles stretched between two nut assemblies. Fiber holders, in combination with the nut assemblies, hold the fiber bundles in tension to provide a compressive force for maintaining component placements along the entire axial length of a turbomachinery rotor.

US Patent:

7338056, Mar 4, 2008

Filed:

Aug 2, 2006

Appl. No.:

11/462027

Inventors:

Robert Chen - San Marino CA, US
Robert A. Hadley - Yorba Linda CA, US

Assignee:

Razor USA, LLC - Cerritos CA

International Classification:

A63C 5/03

US Classification:

280 87042, 280 87021, 280 87041, 280 1128, 280 1125, 280 1127, 280 8701

Abstract:

A flexible skateboard may include a pair of direction casters mounted for steering rotation a twistable one piece skateboard. A center section may be made sufficiently narrower than outboard foot support areas which may be twisted by a rider to add energy for rolling motion to wheels in the casters. The center section may also be made sufficiently resistant to twist so that the skateboard may be ridden as a conventional, non-flexible skateboard.