Weishun William Ni

20070009367, Jan 11, 2007

Apr 21, 2005

11/111116

Dieter Tischler - Carl Junction MO, US
Eric Roll - Joplin MO, US
Jose Munoz - Brighton MI, US
Christopher Tucker - Warsaw IN, US
Weishun Ni - Rockton IL, US
Mitchell Reineck - Ossian IN, US

KMT Waterjet Systems, Inc. - Baxter Springs TX

F04B 27/08

417269000

A pump that includes a cylinder housing having a through bore. A cylinder liner is disposed substantially within the through bore and includes a substantially uniform aperture having a first diameter. A plunger includes an engagement portion having a second diameter smaller than the first diameter. The first diameter and the second diameter are sized to define a first diametrical clearance that is less than about 0.1 percent of the second diameter.

20100158739, Jun 24, 2010

Dec 18, 2008

12/337868

Weishun Ni - Rockton IL, US
Steven A. Heitz - Rockford IL, US
Joseph Wetch - Roscoe IL, US
Christian L. Griffiths - Belvidere IL, US

F01C 1/18

4182065, 4182061

A gear pump comprises a drive gear being mounted for rotation about a first axis and having a plurality of gear teeth at a radially outer location. A driven gear is mounted for rotation about a second axis, and having a plurality of teeth at a radially outer location. The drive gear teeth engage the driven gear teeth at a contact face to cause the driven gear to rotate. Slots are formed in the contact face of one of the drive and driven gear teeth.

20110188997, Aug 4, 2011

Feb 4, 2010

12/700337

Weishun W. Ni - Rockton IL, US
Jeffrey A. Stadler - Roscoe IL, US
Jody A. Peterson - Rockford IL, US

HAMILTON SUNDSTRAND CORPORATION - Windsor Locks CT

F01D 15/12
F16D 65/24

415123, 188170

A brake assembly () for an air turbine starter () includes a brake cylinder () located in the air turbine starter (). A brake piston () is located at least partially within the brake cylinder () and slidable therein. A biasing member () biases the brake piston () toward a turbine wheel () of the air turbine starter () applying a braking force to the turbine wheel () and defining a piston chamber () between the turbine wheel () and the brake piston (). A through opening () in the brake piston () into the piston chamber () is configured such that a flow of fluid through the through opening () into the piston chamber () applies a force to the brake piston () sufficient to overcome the bias thereby allowing rotation of the turbine wheel ().

20120141316, Jun 7, 2012

Dec 6, 2010

12/960599

David L. Wakefield - Loves Park IL, US
Weishun Ni - Rockton IL, US

F01C 1/18
F16H 55/08
B23P 15/00

4182061, 29888023, 74460

A gear includes a gear root defined by a stretched root blended into an involute tooth profile curve within a True Involute Form diameter.

20120156077, Jun 21, 2012

Dec 20, 2010

12/973349

Sara Dexter - Rockford IL, US
Weishun Ni - Rockton IL, US

HAMILTON SUNDSTRAND CORPORATION - Windsor Locks CT

F01C 19/04

418106

A vane pump is provided and includes a liner having an inlet window and a discharge window, the liner being formed to define a cam surface and a rotor carrying a plurality of radially extending vanes which are forced outwardly such that vane tips thereof contact with the cam surface, the rotor having a direction of rotation such that one end of the inlet window is an upstream end and an opposed end is a downstream end, a radius of each of the vane tips being approximately 0.114 inches (0.3 cm) and a profile of the cam surface being defined in accordance with the radius of the vane tips.

20120219449, Aug 30, 2012

Feb 25, 2011

13/034864

Weishun Ni - Rockton IL, US
Satish Shantilal Shah - Rockford IL, US
Timothy P. Walgren - Byron IL, US

F04C 2/18
B23P 11/00
F04C 15/00
F16C 17/02

4182067, 384416, 2988802

A bearing includes a bridge land geometry having a finger cut that defines a width ISW, a center of the width ISW displaced from a shaft axis a radial distance ISR, a ratio of ISW/ISR between 0.074-0.293, to reduce cavitation and pressure ripple.

20130319153, Dec 5, 2013

Sep 13, 2012

13/614173

Weishun Ni - Rockton IL, US

HAMILTON SUNDSTRAND CORPORATION - Windsor Locks CT

F16H 1/06

74421 R

An aircraft turbine engine Fuel Metering Unit (FMU) is provided including a main gear pump having a main drive gear and a main driven gear and a servo gear pump having a servo drive gear and a servo driven gear. The main drive gear and the servo drive gear are received on an input shaft. The main driven gear is mounted to a first shaft oriented parallel to and adjacent a first side of the input shaft. The main driven gear is in meshing engagement with the main drive gear. The servo drive gear is mounted to a second shaft arranged parallel to and adjacent a second, opposite side of the input shaft. The servo driven gear is in meshing engagement with the servo drive gear.

20140023545, Jan 23, 2014

Jul 23, 2012

13/555902

Steven A. Heitz - Rockford IL, US
Weishun Ni - Rockton IL, US

HAMILTON SUNDSTRAND CORPORATION - Windsor Locks CT

F01C 1/18

418191

A gear pump comprises first and second gears and a housing. The housing comprises a first arcuate gear bore that receives the first gear, a second arcuate gear bore that receives the second gear, a discharge port that joins the first and second arcuate gear bores, an inlet port that joins the first and second arcuate gear bores opposite the discharge port; and first and second cutbacks that are joined to the first and second arcuate gear bores, respectively, adjacent the inlet port.