Inventor
PRESTON DAVID M
US49 patents
⚠️ This page may combine multiple inventors who share the name “PRESTON DAVID M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EATON CORP
46 patentsUS5485904AJan 23, 1996
Clutch ball ramp actuator with drive and coast apply
EATON CORP102 citations98
US5810141ASep 22, 1998
Driveline clutch with unidirectional apply ball ramp
EATON CORP57 citations96
US5682848ANov 4, 1997
Engine valve control system using a latchable rocker arm activated by a solenoid mechanism
EATON CORP46 citations96
US5651437AJul 29, 1997
Clutch ball ramp actuator to maintain state upon loss of power
EATON CORP58 citations96
US5623897AApr 29, 1997
Engine valve control system using a latchable rocker arm activated by a solenoid mechanism
EATON CORP77 citations96
US5619958AApr 15, 1997
Engine valve control system using a latchable rocker arm
EATON CORP63 citations96
US5441137AAug 15, 1995
Clutch with a centrifugally applied ball ramp actuator
EATON CORP104 citations96
US5911643AJun 15, 1999
Differential gear mechanism and improved ball-ramp actuation thereof
EATON CORP68 citations95
US4595349AJun 17, 1986
Supercharger rotor, shaft, and gear arrangement
EATON CORP77 citations95
US6354265B1Mar 12, 2002
Electro-mechanical latching rocker arm engine brake
EATON CORP60 citations94
US6092497AJul 25, 2000
Electromechanical latching rocker arm valve deactivator
EATON CORP57 citations94
US5660153AAug 26, 1997
Valve control system
EATON CORP81 citations94
US6666315B2Dec 23, 2003
Ball ramp clutch with indexing plates
EATON CORP27 citations93
US6082504AJul 4, 2000
Friction brake device utilizing dual ball ramp devices
EATON CORP27 citations93
USRE36502EJan 18, 2000
Clutch ball ramp actuator with drive and coast apply
EATON CORP23 citations93
US5960916AOct 5, 1999
Ball ramp driveline clutch actuator with biasing element
EATON CORP30 citations93
US5910061AJun 8, 1999
Ball ramp driveline clutch actuator with unidirectional apply
EATON CORP30 citations93
US5819883AOct 13, 1998
Driveline retarder with ball ramp loaded friction plates
EATON CORP46 citations93
US5802915ASep 8, 1998
Transmission shifting mechanism with ball ramp actuator
EATON CORP31 citations93
US5713446AFeb 3, 1998
Low inertia ball ramp actuator
EATON CORP24 citations93
US5690066ANov 25, 1997
Engine valve control actuator with knee action linkage
EATON CORP39 citations93
US5469948ANov 28, 1995
Clutch ball ramp actuator with coast lock
EATON CORP50 citations93
US5435201AJul 25, 1995
Transmission shift mechanism with ball ramp actuated gear clutch packs
EATON CORP26 citations93
US4724879AFeb 16, 1988
Central tire inflation system
EATON CORP47 citations93
US5152360AOct 6, 1992
Throttle cable intervention device
EATON CORP23 citations92
US6945893B2Sep 20, 2005
Hybrid powertrain system
EATON CORP53 citations89
US6641111B2Nov 4, 2003
Dislodging a throttle plate from ice formation
EATON CORP14 citations84
US6561332B2May 13, 2003
Ball ramp clutch with frictional damping
EATON CORP14 citations84
US5964330AOct 12, 1999
Ball ramp driveline clutch actuator with self aligning cone clutch
EATON CORP19 citations84
US5953959ASep 21, 1999
Transmission inertia brake with ball ramp actuation
EATON CORP17 citations84
US5947857ASep 7, 1999
Ball ramp driveline clutch actuator with unidirectional apply using planetary gearset
EATON CORP17 citations84
US6675943B2Jan 13, 2004
Lubrication system for ball ramp clutch systems
EATON CORP8 citations74
US6637569B1Oct 28, 2003
Ball ramp actuator with indexing plates
EATON CORP12 citations74
US6237735B1May 29, 2001
Viscous actuated ball ramp clutch having one-way clutch
EATON CORP9 citations74
US4940109AJul 10, 1990
Split arm throttle cable intervention device
EATON CORP16 citations74
US6694934B1Feb 24, 2004
Variable valve actuator for internal combustion engine
EATON CORP11 citations73
US5129633AJul 14, 1992
Hydraulic actuator for parallel auxiliary leaf springs
EATON CORP14 citations73
US5098121AMar 24, 1992
Vehicle suspension with auiliary leaf springs
EATON CORP15 citations73
US5029893AJul 9, 1991
Vehicle suspension with auxiliary leaf springs
EATON CORP20 citations73
US5024463AJun 18, 1991
Manually power mechanical actuator for parallel auxiliary spring
EATON CORP18 citations73
US4982972AJan 8, 1991
Hydraulic pump and actuator for parallel auxiliary leaf spring
EATON CORP14 citations73
US4966246AOct 30, 1990
Four wheel steering system
EATON CORP13 citations71
US4949803AAug 21, 1990
Four wheel steering system
EATON CORP10 citations71
US5035408AJul 30, 1991
Jounce responsive actuator for parallel auxiliary spring
EATON CORP6 citations62
US4830128AMay 16, 1989
Four wheel steering having closed hydraulic system with pressure relief
EATON CORP4 citations62
US7452305B2Nov 18, 2008
Driveline torque reducer
EATON CORP5 citations60