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Class Information
Number: 180/233
Name: Motor vehicles > Having four wheels driven
Description: Vehicle provided with four wheels and means for driving each of the wheels.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4723623 |
Four wheel drive vehicle |
Feb. 9, 1988 |
| 4723622 |
Wheel drive mode changeover apparatus |
Feb. 9, 1988 |
| 4719998 |
Power transmission system for vehicle |
Jan. 19, 1988 |
| 4719819 |
Power transmission system for a vehicle |
Jan. 19, 1988 |
| 4718516 |
Four wheel drive unit |
Jan. 12, 1988 |
| 4718515 |
Control device for a vehicle with disengageable four-wheel drive |
Jan. 12, 1988 |
| 4715466 |
Four wheel steer control system for four wheel drive vehicle, responsive to driving torque distribution |
Dec. 29, 1987 |
| 4715467 |
Control system for a four-wheel drive vehicle |
Dec. 29, 1987 |
| 4714126 |
Four-wheel drive vehicle |
Dec. 22, 1987 |
| 4714127 |
Control apparatus for a vehicle with disengageable four-wheel drive |
Dec. 22, 1987 |
| 4709778 |
Vehicle drive unit |
Dec. 1, 1987 |
| 4709775 |
Torque control system for vehicles |
Dec. 1, 1987 |
| 4705134 |
System for controlling a transfer clutch of a four-wheel drive vehicle |
Nov. 10, 1987 |
| 4704920 |
Power transmission device of four wheel drive vehicle |
Nov. 10, 1987 |
| 4702336 |
Method and brake system for traction control |
Oct. 27, 1987 |
| 4700820 |
Torque transfer device and engageable, shiftable clutch in an all-wheel drive arrangement for a motor vehicle |
Oct. 20, 1987 |
| 4699234 |
Four-wheel drive vehicle |
Oct. 13, 1987 |
| 4696365 |
Four wheel drive vehicle |
Sep. 29, 1987 |
| 4693333 |
Power transmission apparatus for vehicles |
Sep. 15, 1987 |
| 4683976 |
Service vehicle |
Aug. 4, 1987 |
| 4676336 |
Power transmission apparatus for vehicle |
Jun. 30, 1987 |
| 4669559 |
Four-wheel driven vehicles |
Jun. 2, 1987 |
| 4666015 |
Power train for front and rear wheel drive vehicle |
May. 19, 1987 |
| 4664208 |
Six-wheeled motor vehicle |
May. 12, 1987 |
| 4664216 |
Four-wheel drive vehicle |
May. 12, 1987 |
| 4655724 |
Toy vehicle and steering and drive mechanism therefor |
Apr. 7, 1987 |
| 4650028 |
Viscous coupling apparatus for on-demand four wheel drive system |
Mar. 17, 1987 |
| 4650029 |
Off-the-road four-wheel drive vehicle |
Mar. 17, 1987 |
| 4630704 |
System for controlling a power transmission of a four-wheel drive vehicle |
Dec. 23, 1986 |
| 4630705 |
Transmission for a four-wheel drive motor vehicle |
Dec. 23, 1986 |
| 4627513 |
Intermediate differential for a vehicle including a spur gear/planetary gear arrangement |
Dec. 9, 1986 |
| 4618022 |
Power transfer device for four-wheel drive vehicle |
Oct. 21, 1986 |
| 4614249 |
Frame structure for a four-wheel drive vehicle |
Sep. 30, 1986 |
| 4609064 |
Part-time four-wheel drive system with steering angle responsive control |
Sep. 2, 1986 |
| 4605087 |
All-wheel drive system for vehicles |
Aug. 12, 1986 |
| 4605084 |
Constant mesh gear transmission |
Aug. 12, 1986 |
| 4602696 |
Control system for selectively switchable two/four wheel drive automatic transmission system providing shifting characteristic matched to driving condition |
Jul. 29, 1986 |
| 4601359 |
Part time on-demand four-wheel drive vehicle transaxle with viscous clutch |
Jul. 22, 1986 |
| 4597467 |
Four-wheel drive clutch mechanism |
Jul. 1, 1986 |
| 4576061 |
System for controlling the transmission of a four-wheel drive vehicle |
Mar. 18, 1986 |
| 4572318 |
Four-wheel drive vehicle transmission system |
Feb. 25, 1986 |
| 4562897 |
Vehicle drivetrain including viscous clutch |
Jan. 7, 1986 |
| 4562541 |
System for controlling a power transmission of a four-wheel drive vehicle |
Dec. 31, 1985 |
| 4557358 |
Synchronized clutch assembly with selective override for four-wheel drive vehicles |
Dec. 10, 1985 |
| 4558414 |
System for controlling a power transmission of a four-wheel drive vehicle |
Dec. 10, 1985 |
| 4556134 |
Power transmission system for a four-wheel drive vehicle |
Dec. 3, 1985 |
| 4545451 |
Toy vehicle with an automatic transmission |
Oct. 8, 1985 |
| 4545456 |
Four-wheel drive axleshaft clutch mechanism |
Oct. 8, 1985 |
| 4511014 |
System for controlling a power transmission of a four-wheel drive vehicle |
Apr. 16, 1985 |
| 4509626 |
Hydraulically actuated high torque, quick engagement clutch assembly |
Apr. 9, 1985 |
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