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
Single-stage PFC converter with constant voltage and constant current
String changing tool with a quick connector assembly and worm gear string cutter
Substrate processing apparatus and display method of substrate processing apparatus
Battery module
System and method for broadcasting rich media to devices over multiple carriers
Method for exchanging data concerning an electronic transaction
Electromagnetic bandgap structure and printed circuit board
  Randomly Featured Patents
Flash plug for I.V. catheters
Status output for a bit slice ALU
Tamping mechanism of tie-tamping outfit
Bicycle hub with sliding engagement member and detachable freewheel
Thermal stabilized vegetable oil extended diesel fuels
Film processing solution cartridge and method for developing and digitizing film
Method of testing redundant memory cells
Flooring material
Continuous circular motion case packing and depacking apparatus and method
Method for recovering polyphenylene oxides