Inventor
Richard A. Nellums
Inventor
Farmington Hills, MI, US
Overview
Patents· 29 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Hprimary
F16HGearing21%
Y10TTechnical subjects covered by former us classification18%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles16%
B60WConjoint control of vehicle sub-units of different type or different function15%
F16DCouplings for transmitting rotation15%
Y02TClimate change mitigation technologies related to transportation4%
B60LPropulsion of electrically-propelled vehicles3%
B60YIndexing scheme relating to aspects cross-cutting vehicle technology1%
F02BInternal-combustion piston engines1%
F02DControlling combustion engines1%
PatentTitleYear
10,495,010Damage protection for multi-function axle201910,343,519Mechanical shift assembly for a shiftable tandem drive axle20199,989,137Direct drive hydrostatic transmission20189,347,504'Vehicle driveline torque managing process'20169,333,857'Multi-mode tandem axle function selection apparatus and method'20169,020,715'Distributed hierarchical control system for a tandem axle drive system'20158,911,321'Tandem axle system'20148,566,013'Electric vehicle (EV) driving mode optimization for a parallel hybrid electric vehicle'20138,523,738'Method of shifting a tandem drive axle having an inter-axle differential'20137,367,415'Hybrid electric vehicle engine start technique'20087,125,362'Hybrid powertrain system including smooth shifting automated transmission'2006RE038615'System and method for decreasing ratio changing time in electronically enhanced powertrain systems'2004RE037697'Self-energizing synchronizer with force limiting'20025,957,257'Self-energizing synchronizer including force limiting'19995,901,824'Synchronizer including radially-moveable self-energizing member'19995,901,823'Synchronizer including radially-moveable, resiliently-biased self-energizing member'19995,842,376'System and method for decreasing ratio changing time by actuating inertia brake while the master clutch is engaged in electronically enhanced powertrain systems'19985,655,407'System and method for decreasing ratio changing time in electronically enhanced powertrain systems'19975,560,249'Power synchronizer for a compound transmission'19965,460,060'Transmission shifting mechanism with spring loaded ball screw'19955,456,344'Self-adjusting clutch and input shaft brake actuator'19955,425,437'Synchronizer with self-energizing'19955,094,126'Transmission with a detachable emergency ratio selector'19925,078,245'Self-energizing synchronizer with force limiting'19925,065,855'Self-energizing splines for a synchronizer'19914,874,070'Control for AMT system start from stop operation'19894,598,609'Positive drive'19864,569,250'Positive drive with torque responsive dampener'19864,164,144'Fluid flowmeter'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–2013Patents assigned to EATON CORP (21)· patent assignee history
1986Based in Union Lake, MI, US· patent location history
1991–2002Based in Chorley, GB· patent location history
1995–2008Based in Farmington Hills, MI, US· patent location history
2013–2019Patents assigned to DANA HEAVY VEHICLE SYS GROUP (6)· patent assignee history
2013Patents assigned to NELLUMS RICHARD A (2)· patent assignee history
2013Patents assigned to CONNOLLY THOMAS R (1)· patent assignee history
2013Patents assigned to COOPER KENNETH E (1)· patent assignee history
2013–2019Based in Portage, MI, US· patent location history
2013–2016Based in Maumee, OH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EATON CORP | 21 | 1979–2013 |
| DANA HEAVY VEHICLE SYS GROUP | 6 | 2013–2019 |
| NELLUMS RICHARD Aself | 2 | 2013 |
| CONNOLLY THOMAS R | 1 | 2013 |
| COOPER KENNETH E | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Farmington Hills, MI, US | 12 | 1995–2008 |
| Portage, MI, US | 5 | 2013–2019 |
| Maumee, OH, US | 4 | 2013–2016 |
| Chorley, GB | 4 | 1991–2002 |
| Union Lake, MI, US | 2 | 1986 |