Richard A Stoll, 82118 Hawthorn Ave, Royal Oak, MI 48067

6363833, Apr 2, 2002

Aug 17, 2000

09/641277

Richard A. Stoll - Royal Oak MI

TRW Inc. - Lyndhurst OH

F16J 100

92136, 92172

A hydraulic power assist steering system ( ) for a vehicle having steerable wheels comprises a housing ( ) and a rack ( ). The system also comprises a fluid motor ( ) for moving the rack ( ). The fluid motor ( ) includes a piston ( ) fixedly connected to the rack ( ) and a pump ( ). The piston ( ) has first and second opposite end faces ( ) against which hydraulic fluid is directed by the pump ( ) to effect movement of the piston ( ), and thereby the rack ( ), relative to the housing ( ). The piston ( ) has a wall ( ) including a first end portion ( ) connected with the rack ( ) at a first axial location along the rack, a second end portion ( ) connected with the rack at a second axial location along the rack, and a central portion ( ) extending between and interconnecting the first and second end portions of the wall. The central portion ( ) of the wall ( ) has an outer peripheral groove ( ) for receiving a seal ring ( ) for engagement with the housing ( ). The first end portion ( ) and the second end portion ( ) and the central portion ( ) of the piston ( ) define a cavity ( ) in the piston.

6505862, Jan 14, 2003

May 5, 2000

09/565336

Richard A. Stoll - Royal Oak MI

TRW Inc. - Lyndhurst OH

F16L 500

285205, 2851361, 2851392

A power steering apparatus ( ) includes a housing ( ) defining a chamber ( ) for holding power steering fluid. The housing ( ) has an opening ( ) defined by a projection ( ) integrally formed on the housing. A conduit ( ) extends into the opening ( ). A connector assembly ( ) connects the conduit ( ) with the projection ( ) on the housing ( ). The connector assembly ( ) includes a member ( ) engaging the conduit ( ) and the projection ( ) to connect the conduit with the projection.

6655491, Dec 2, 2003

Jun 9, 2000

09/592456

Richard A. Stoll - Royal Oak MI
Rogerio De Moura Maradini - Sao Bernardo Do Campo, BR

TRW Inc. - Lyndhurst OH

F16C 37098

180417, 285308, 285921, 285319

A power steering apparatus ( ) includes a housing ( ) defining a chamber ( ) for holding power steering fluid. The housing ( ) has an opening ( ) defined by a projection ( ) integrally formed on the housing. A conduit ( ) extends into the opening ( ) and is connected with the projection ( ) on the housing ( ). A connector assembly ( ) connects the conduit ( ) with the projection ( ) on the housing ( ). The connector assembly ( ) includes a clip ( ) having a base ( ) with an opening ( ) and a plurality of resilient fingers ( ) extending from the base. Either the conduit ( ) or the projection ( ) extends through the opening ( ) in the base ( ) and engages the base. The fingers ( ) engage the other of the conduit ( ) and the projection ( ).

6782966, Aug 31, 2004

Jul 6, 2001

09/900256

Paul R. Sahr - Lake Orion MI
Richard A. Stoll - Royal Oak MI

TRW Inc. - Lyndhurst OH

B62D 5083

180428, 91375 A, 180441

A power-assisted steering apparatus ( ) for turning steerable wheels of a vehicle is provided. The apparatus ( ) comprises a one-piece monolithic component ( ). The one-piece monolithic component ( ) includes a pinion gear portion ( ) for meshingly engaging a rack bar ( ), a valve sleeve portion ( ) for cooperating with a valve core ( ) to actuate the hydraulic motor ( ), and a torsion bar portion ( ) extending axially outwardly of the valve sleeve portion ( ) opposite the pinion gear portion ( ).

7044261, May 16, 2006

Apr 3, 2003

10/406399

John S. Borza - Shelby Township MI, US
William F. Olsen - Birmingham MI, US
Richard A. Stoll - Royal Oak MI, US

TRW Automotive U.S. LLC - Livonia MI

B62D 5/16

180417, 180430

An apparatus () for turning steerable wheels of a vehicle comprises a housing () that defines a fluid chamber (). A rack bar () extends longitudinally through the housing () and is connectable with the steerable wheels of the vehicle. The rack bar () is movable relative to the housing () for turning the steerable wheels. A piston assembly () is fixedly attached to the rack bar () and sealingly engages the housing (). The piston assembly () divides the fluid chamber () into first and second chamber portions ( and ). A fluid source () directs fluid toward one of the first and second chamber portions ( or ) for creating a differential pressure between the first and second chamber portions ( and ). The piston assembly () and the rack bar () move relative to the housing () in response to the differential pressure. The piston assembly () includes structure () for dampening fluid pulsations emanating from the fluid source ().

7334660, Feb 26, 2008

Mar 31, 2005

11/095750

Michael J. Damore - Sterling Heights MI, US
Richard A. Stoll - Royal Oak MI, US

TRW Automotive U.S. LLC - Livonia MI

B62D 3/12

180428, 277586, 277585

A rack bushing seal assembly for a rack and pinion steering assembly that includes a bushing, a bushing liner and a locking material. The bushing defines an annular recess on an outer surface of the bushing. The bushing liner is positioned within the bushing. The locking material is positioned within the annular recess for retaining the rack bushing seal assembly within a rack tube. A rack bushing seal assembly also includes a bushing having a first annular flange with a pressure port formed therein, and a first tube portion with a channel portion formed therein, wherein the pressure port is in fluid communication with the channel portion. The rack bushing seal assembly also includes a bushing liner having a second annular flange and a second tube portion, the bushing liner being positioned within the first tube portion of the bushing. A rack tube is placed in abutting arrangement with the first annular flange of the bushing wherein the channel portion is in fluid communication with the rack.

7448466, Nov 11, 2008

Aug 24, 2005

11/210994

Joseph D. Miller - Farmington Hills MI, US
Richard A. Stoll - Royal Oak MI, US

TRW Automotive U.S. LLC - Livonia MI

B62D 5/04

180444

A power assisted steering system includes a steering assembly and a power assist assembly. The power assist assembly includes a motor having an output shaft that is connected to the steering assembly. A target disc is connected to the output shaft for rotation therewith. A control unit has a printed circuit board including at least one sensor supported thereon. The sensor is responsive to rotation of the target disc for generating a signal. The controller is responsive to the sensor signal for controlling the operation of the motor.

2002013, Oct 3, 2002

Mar 28, 2001

09/819432

Richard Stoll - Royal Oak MI, US
John Borza - Shelby Township MI, US

TRW Inc.

F16H001/04
F16H021/44
F16H021/54
F16H025/18
B62D005/06

074/422000, 074/3880PS, 180/417000, 180/428000, 074/096000

A hydraulic power assist rack and pinion steering system () for a vehicle includes a housing () in which a rack () is movable along an axis () to effect turning movement of steerable wheels of the vehicle. The rack () comprises a first rack part () having an elongate body portion () and an end portion formed as a first piston portion (), and a second rack () part having an elongate body portion () and an end portion formed as a second piston portion (). The first piston portion () of the first rack part () is joined to the second piston portion () of the second rack part () to form a piston (). The body portion () of the first rack part () extends axially away from the piston () in a first direction (). The body portion () of the second rack part () extends axially away from the piston () in a second direction () opposite the first direction ().