Richard A Knepper

6439774, Aug 27, 2002

Oct 15, 1999

09/403881

Richard A. Knepper - Keene NH
Keith M. Gordon - Munsonville NH
Jay M. Landry - Keene NH
William E. Harbottle - Fort Lauderdale FL

The Timken Company - Canton OH

F16C 3206

384110, 384297, 2989802, 2989815, 29413, 29424

A rotary air bearing (A) as shown in the Figure has a journal ( ) provided with a pair of outwardly presented tapered surfaces located opposite the tapered surfaces on the journal, and a low friction liner ( ) bonded to the tapered surfaces on the hub and having tapered surfaces which are separated from the tapered surfaces of the journal by small air gaps (g).

6443624, Sep 3, 2002

Aug 1, 2000

09/629511

Richard A. Knepper - Keene NH
Tadao Tsuneyoshi - North Canton OH
William E. Harbottle - Fort Lauderdale FL
Neal C. McBain - Lebanon NH

The Timken Company - Canton OH

F16C 1908

384492, 384465

An angular contact ball bearing has races formed from a case-carburized or carbonitrided steel, preferably a stainless steel, that withstands high forces and high temperatures. The bearing has relatively low osculation ratios to reduce the generation of heat, yet can withstand applied radial loads and the centrifugal forces generated in high speed operation.

6502991, Jan 7, 2003

Mar 14, 2001

09/808450

Richard A. Knepper - Keene NH
Gary L. Doll - Canton OH
Thomas Underwood - East Swanzey NH

The Timken Company - Canton OH

F16C 3206

384110, 29432, 294322

A protective coating is applied to an inner or an outer member of a rotary fluid bearing by sputtering to minimize scuffing, wear and premature failure of the members during starts and stops of the bearing. The coating may include titanium, tungsten, chromium, amorphous carbon with or without metallic impurities, and hydrogenated amorphous carbon with or without metallic impurities. One of the members is formed in two sections to accommodate assembly of the bearing and these sections abut at end faces. Features on each end face are imparted to the other end face in a compression coining process to facilitate rapid and repeatable alignment of the two sections when separated and rejoined during subsequent manufacturing steps.

7960888, Jun 14, 2011

Feb 12, 2007

12/095356

Xiaolan Ai - Massillon OH, US
Bradley Mularcik - Copley OH, US
Richard Knepper - North Canton OH, US

The Timken Company - Canton OH

H02K 1/00
H02K 23/46

310190, 310191, 310192

An electric motor comprising a rotor, a stator and a field weakening device. The rotor has a plurality of magnets mounted thereto, and the stator is located adjacent to the rotor and has a plurality of slots defined therein. The slots define raised teeth and are wound with electrical wiring to generate a magnetic field when the wiring is energized with current. The field weakening device is made from a highly magnetically permeable material and a comparatively lower magnetically permeable material. The field weakening device is disposed between the rotor and the stator and is selectively movable between a first position to align the highly magnetically permeable material between the teeth of the stator and the magnets of the rotor and a second position to align the comparatively lower magnetically permeable material between the teeth of the stator and the magnets of the rotor.

8152677, Apr 10, 2012

Mar 16, 2007

12/293014

Richard Knepper - North Canton OH, US
Xiaolan Al - Massillon OH, US

The Timken Company - Canon OH

F16H 13/06

475183

A traction drive transmission has an outer ring , a sun roller , support rollers , and one or more loading rollers. The outer ring includes a raceway presented inwardly. The sun roller includes a raceway presented outwardly toward the raceway of the outer ring. The sun roller is offset eccentrically with respect to the outer ring so that a wedge gap exists between the raceways of the outer ring and sun roller. The support rollers are located between the outer ring and sun roller. Each support roller has first and second raceways that have different diameters and contacts the raceway of the sun roller along its first raceway and the raceway of the outer ring along its second raceway. Each loading roller is located at the wedge gap between the raceway of the outer ring and the raceway of the sun roller. Each loading roller has first and second circular raceways that have different diameters and contacts the raceway of the sun roller along its first raceway and the raceway of the outer ring along its second raceway.

8536750, Sep 17, 2013

Jul 24, 2007

12/374855

Xiaolan Ai - Massillon OH, US
Richard Knepper - North Canton OH, US
Don Remboski - Ann Arbor MI, US
Chris Van Dress - Alliance OH, US
Brad Mularcik - Copley OH, US

The Timken Company - Canton OH

H02K 7/12
H02K 5/16

310191, 310 91

A mechanical structure () for enabling a rotor () in a permanent magnet electric motor A to be moved axially relative to a stator () under an actuating force, without experiencing frictional sliding during such a movement. As the rotor () is moved away from the stator (), the motor magnetic field is weakened, enabling the motor A to operate efficiently at elevated speeds, extending speed coverage under constant power.

20020094142, Jul 18, 2002

Jan 16, 2001

09/760688

Richard Knepper - Keene NH, US
Keith Gordon - Munsonville NH, US

The Timken Company

F16C017/04

384/245000

A bearing, which may be used to mount a swing arm on the frame of a computer disk drive, has an outer race provided with two raceways of arcuate cross section. Each raceway has a row of raceway balls located along it. The raceway balls of each row, in turn, surround and bear against a separate pivot ball. The two pivot balls are greater in diameter than the circles described by the innermost areas of the rows of raceway balls, so that the pivot balls when urged together bear against the raceway balls of the two rows and urge them against their raceways. The force which urges the two pivot balls together may derive from spring-loaded arm engaged with one of the balls.