Resources Contact Us Home
Browse by Category: Main > Industrial
Class Information
Number: 475/203
Name: Planetary gear transmission systems or components > Variable speed or direction transmission combined with differential > Plural selectively driveable gears surround differential
Description: Subject matter wherein input power to said differential transmission* is selectively supplied by either of two gears which encircle the external periphery of said differential transmission.

Patents under this class:

Patent Number Title Of Patent Date Issued
8523727 Multi ratio drive Sep. 3, 2013
8241163 Right-left driving force controller Aug. 14, 2012
7806220 Torque distributing drive mechanism for motor vehicles Oct. 5, 2010
6969333 Motor power train and method of assembling the same Nov. 29, 2005
6887177 Transfer for a four-wheel drive vehicle May. 3, 2005
6854359 Transmission mechanism for driving four wheels Feb. 15, 2005
6849019 Transmission Mechanism for driving four wheels Feb. 1, 2005
6848337 Transmission mechanism for driving four wheels Feb. 1, 2005
6843151 Transmission mechanism with a single differential mechanism Jan. 18, 2005
6843748 Transmission mechanism with a single differential mechanism for driving four wheels Jan. 18, 2005
6840881 Transmission mechanism with a caseless differential mechanism Jan. 11, 2005
6413184 Power transmission system for four-wheel drive vehicle Jul. 2, 2002
5868642 Right/left driving torque distributing device for vehicle Feb. 9, 1999
5868641 Motor vehicle change gear unit with reduced gear wheel stages Feb. 9, 1999
5807201 Transmission apparatus capable of being driven in two reverse speeds Sep. 15, 1998
5718148 Transversely installed motor vehicle gear-change unit Feb. 17, 1998
5453181 Device for a gear Sep. 26, 1995
5385513 Transmission assembly with separateable halves differential casing with gears and clutch mounted on casing for vehicles Jan. 31, 1995
5181893 Transmission for vehicle Jan. 26, 1993
5149308 Transmission Sep. 22, 1992
4973296 Apparatus for driving a pair of motor vehicle road wheels Nov. 27, 1990
4819506 Power transmitting system for a four-wheel drive vehicle Apr. 11, 1989
4108021 Transfer case Aug. 22, 1978
3999447 Offset drive transfer mechanism Dec. 28, 1976
3955442 Transfer case with gear and chain drive May. 11, 1976

  Recently Added Patents
High-efficiency preambles for communications systems over pseudo-stationary communication channels
Method and apparatus for managing backup channel in multi-channel environment
Toy track intersection component
Portable multimedia player
Low temperature pressure chamber unit, magnetic resonance device with a low temperature pressure chamber unit, and an attachment method to attach at least one add-on unit to an external housin
Reconstruction of deforming surfaces by canceling ambient occlusion and refining 3-D shape
AC/DC converter
  Randomly Featured Patents
Process and apparatus for the mixing and direct emplacement of a two-component bone cement
Slotted rotary shaver
Noise immune transmission gate
Ophthalmological device useful for eye surgery
Alarm clock with wing-shaped snooze control
Method of calibration for gauging fuel in an automotive tank
Apparatus and method for measuring optical characteristics of an object
Nephrostomy catheter with formed tip
Gas turbine power plant control apparatus including an ambient temperature responsive control system
Manually actuated furniture control