Peter C Chen, 521530 Key Blvd, Arlington, VA 22209

6668105, Dec 23, 2003

Jul 26, 2001

09/912600

Peter C. Chen - Arlington VA
Shiping Chen - Rockville MD

Systems Planning Analysis, Inc. - Greenbelt MD

G02B 600

385 13, 385 12, 385 37, 356 355

A fiber optic sensor flatpack capable of extremely sensitive strain measurements, without the complexity, high installation costs, and sensitivity to extraneous effects associated with conventional strain gage technologies, such as resistance foil strain gages. The âflatpackâ strain sensor houses two individual sensors to allow for accurate temperature compensated strain measurements. The packaging method incorporates plastic materials and laminate manufacturing techniques, which results in a fully hermetic package that is resistant to harsh environmental conditions. Multiple flatpacks can be connected in series and interrogated along a single optical fiber cable when the flatpacks are constructed with fiber optic sensors that can be serially multiplexed, such as with Bragg grating sensors.

6694856, Feb 24, 2004

Feb 22, 2002

10/079565

Peter C. Chen - Clarksville MD
Norman Wereley - Potomac MD

The University of Maryland - College Park MD
Systems Planning and Analysis - Greenbelt MD

F41A 2504

89 4301

Disclosed is a high-speed, high-force impulse load damper susceptible to adaptive control including a cylinder, a piston defining in the cylinder a volume, a coil, fixed relative to the cylinder, configured to generate a magnetic field, and a fluid channel, configured to be influenced by the magnetic field, for one or both of providing fluid to and evacuating fluid from the volume. Also disclosed is a damper including a cylinder, a piston defining in said cylinder a first volume and a second volume, a first fluid channel for one or both of providing fluid to and evacuating fluid from the first volume, first means for regulating flow through said first fluid channel, a second fluid channel for one or both of providing fluid to and evacuating fluid from the second volume, and second means for regulating flow through said second fluid channel, wherein said first fluid channel and said second fluid channel are in fluid communication. Further disclosed is a method of damping with a damper, having a cylinder and a piston defining in the cylinder a first volume and a second volume, including causing negative fluid pressure to resist a tendency of the piston from increasing the first volume, an d causing positive fluid pressure to resist a tendency of the piston from decreasing the second volume. Additionally disclosed is a gun system including a gun, a gun mount, and means for dissipating energy of a force exerted by the gun against the mount, wherein the means for dissipating is adjustable for dissipating different amounts of energy.

D588647, Mar 17, 2009

Feb 8, 2008

29/301077

Xiaoquan Luo - Bronx NY, US
Peter Chen - West Windsor NJ, US
Jungkun Lee - Edison NJ, US

Officemate International Corporation - Edison NJ

1902

D19 72

7721635, May 25, 2010

Jan 16, 2007

11/653693

Xiaoquan Luo - Bronx NY, US
Peter Chen - West Windsor NJ, US
Jungkun Lee - Edison NJ, US

Officemate International Corporation - Edison NJ

B26F 1/04
B26F 1/32
B26D 5/08

83628, 83549, 83618, 83633, 83588

A punch apparatus for punching holes through a paper stack. The apparatus has a rotationally attached lever handle. The lever handle has a handle end, a contact end, and a rotation axis between the handle end and the contact end. When a downward force is applied to the handle end, the lever handle rotates about the rotation axis. The contact end of the lever handle then exerts a force on a lever arm which in turn rotates a main shaft and attached pressure plate. As a result, the pressure plate exerts a punching force down on punch pins causing them to punch down through the paper stack.

7822522, Oct 26, 2010

Feb 2, 2007

11/670773

Norman Mark Wereley - Potomac MD, US
Gregory John Hiemenz - Silver Spring MD, US
Gang Wang - Bethesda MD, US
Peter Che-Hung Chen - Clarksville MD, US

Techno-Sciences, Inc. (corporation) - Calverton MD
University of Maryland - Riverdale MD

F16F 9/53

701 45, 1882671, 248550, 2973034, 2973005, 340540

An adaptive energy absorption system for a vehicle seat is disclosed, utilizing an adaptive energy absorber or variable profile energy absorber (VPEA) for mitigating occupant injury due to extreme vehicle movement (e. g. , during a vehicle shock event), and/or for mitigating vibration experienced by an occupant of the vehicle seat during normal vehicle operating conditions. The adaptive energy absorption system achieves the aforementioned objectives for a wide range of occupant weights and load levels. Various configurations of dual-goal energy absorption apparatuses that enable both shock mitigation and vibration isolation are disclosed.

7837144, Nov 23, 2010

Aug 11, 2006

11/502360

Curt S. Kothera - Crofton MD, US
Benjamin K. S. Woods - College Park MD, US
Jayant Sirohi - Greenbelt MD, US
Norman M. Wereley - Potomac MD, US
Peter C. Chen - Clarksville MD, US

Techno-Sciences, Inc. - Calverton MD
University of Maryland - Riverdale MD

B64C 3/38
B64C 5/10
B64C 9/00
B64C 13/00

244 992, 244 993, 244 995, 92 90, 92 92

A fluid contact surface actuation system for a vehicle, including a first fluid contact surface constructed and arranged to act against a first fluid passing over the first fluid contact surface; and a first fluid actuator coupled to the first fluid contact surface to move the first fluid contact surface between a first position and a second position to enable control of the vehicle in a predetermined manner, the first fluid actuator having a first resilient bladder that receives a second fluid such that pressure of the second fluid moves the first bladder between a contracted configuration and an expanded configuration.

7878312, Feb 1, 2011

Jun 29, 2007

11/819875

Gregory J. Hiemenz - Silver Spring MD, US
Wei Hu - Rockville MD, US
Norman M. Wereley - Potomac MD, US
Peter Che-Hung Chen - Clarksville MD, US

University of Maryland - Riverdale MD
Techno-Sciences, Inc. - Calverton MD

F16F 7/12

188377, 1882672

An adaptive energy absorption system for a vehicle seat is disclosed, utilizing an adaptive energy absorber or variable profile energy absorber (VPEA) for mitigating occupant injury due to extreme vehicle movement (e. g. , during a vehicle shock event), and/or for mitigating vibration experienced by an occupant of the vehicle seat during normal vehicle operating conditions. Various configurations of dual-goal energy absorption apparatuses using both VPEA and fixed load energy absorbers (FLEAs) that enable both shock mitigation and vibration isolation are disclosed. A semi-active control absorption system, comprising a VPEA and FPEA configured to work in series, is also disclosed.

7921973, Apr 12, 2011

Feb 2, 2007

11/670761

Norman Mark Wereley - Potomac MD, US
Gregory John Hiemenz - Silver Spring MD, US
Wei Hu - Rockville MD, US
Gang Wang - Bethesda MD, US
Peter Che-Hung Chen - Clarksville MD, US

Techno-Sciences, Inc. - Calverton MD
University of Maryland at College Park - College Park MD

F16D 57/00

188266, 18832222

An adaptive energy absorption system for a vehicle seat is disclosed, utilizing an adaptive energy absorber or variable profile energy absorber (VPEA) for mitigating occupant injury due to extreme vehicle movement (e. g. , during a vehicle shock event), and/or for mitigating vibration experienced by an occupant of the vehicle seat during normal vehicle operating conditions. The adaptive energy absorption system achieves the aforementioned objectives for a wide range of occupant weights and load levels. Various configurations of dual-goal energy absorption apparatuses that enable both shock mitigation and vibration isolation are disclosed.