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Robert P. Larkin
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Pittsfield, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Steering transmission for tracked vehicles
Patent number
8,298,106
Issue date
Oct 30, 2012
Berkshire Powertech, Inc.
Robert Francis Larkin
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Continuously variable hydrostatic transmission ratio controller cap...
Patent number
6,109,034
Issue date
Aug 29, 2000
General Dynamics Land Systems, Inc.
Robert Francis Larkin
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Multi-range, belt-type, continuously variable transmission
Patent number
5,980,414
Issue date
Nov 9, 1999
General Dynamics Land Systems, Inc.
Robert Francis Larkin
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Multi-range, hydromechanical transmission for application in high p...
Patent number
5,976,046
Issue date
Nov 2, 1999
General Dynamics Land Systems, Inc.
Robert Francis Larkin
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Multi-range with infinitely variable ratio in each range, hydromech...
Patent number
5,830,097
Issue date
Nov 3, 1998
General Dynamics Defense Systems, Inc.
Robert Francis Larkin
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Multi-range, hydromechanical transmission for motor vehicles
Patent number
5,730,678
Issue date
Mar 24, 1998
Robert Francis Larkin
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Continuously variable hydrostatic transmission with neutral-setting...
Patent number
5,642,617
Issue date
Jul 1, 1997
Martin Marietta Corporation
Robert Francis Larkin
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Positioning apparatus and method utilizing PWM control of a double-...
Patent number
5,542,336
Issue date
Aug 6, 1996
Martin Marietta Corporation
Robert F. Larkin
G05 - CONTROLLING REGULATING
Information
Patent Grant
Continuously variable hydrostatic transmission including a pulse wi...
Patent number
5,540,048
Issue date
Jul 30, 1996
Martin Marietta Corporation
Robert F. Larkin
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Continuously variable hydrostatic transmission having swashplate-mo...
Patent number
5,531,072
Issue date
Jul 2, 1996
Martin Marietta Corporation
Robert F. Larkin
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Continuously variable hydrostatic transmission having ratio control...
Patent number
5,524,437
Issue date
Jun 11, 1996
Martin Marietta Corporation
Robert F. Larkin
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
STEERING TRANSMISSION FOR TRACKED VEHICLES
Publication number
20100113203
Publication date
May 6, 2010
BERKSHIRE POWERTECH INC.
Robert Francis LARKIN
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Application
Multi-range parallel-hybrid continuously variable transmission
Publication number
20040058769
Publication date
Mar 25, 2004
Robert P. Larkin
B60 - VEHICLES IN GENERAL