Compound planet steer differential

Details Compound planet steer differential Compound planet steer differential

2006-12-15

2011-10-04

Pang, Roger (Department: 3655)

Planetary gear transmission systems or components

Electric or magnetic drive or control

Differential drive or control

C475S018000, C475S339000, C180S006440

Reexamination Certificate

active

08029399

ABSTRACT:
A drive configuration for a skid steered vehicle incorporates a controlled differential for use in exercising steering control of the vehicle, comprising a compound planetary gear set (8) coupling two shafts (7a,7b). Respective sun gears (10a) and (10b) turn with the shafts and mesh with compound planet gears (12) in a common planet carrier (13), the ratios of the number of gear teeth between each sun gear and the respective gears (14a) or (14b) of the compound planets being unequal so that when the planet carrier is stationary the two shafts are coupled through the differential to turn together in the same sense but with a speed difference, and controlled rotation of the planet carrier varies the speed difference between the shafts in accordance with the sense and speed of rotation of the planet carrier.

REFERENCES:
patent: 4774857 (1988-10-01), Heine et al.
patent: 4813506 (1989-03-01), Smith
patent: 5195600 (1993-03-01), Dorgan
patent: 7326141 (2008-02-01), Lyons et al.
patent: 2001/0008859 (2001-07-01), Masaki
patent: 2010/0105511 (2010-04-01), Thompson
patent: 644 547 (1937-05-01), None
patent: 19 13 967 (1965-04-01), None
patent: 1 167 818 (2002-01-01), None
patent: WO 02/083483 (2002-10-01), None
patent: WO 2005/054712 (2005-06-01), None
patent: WO 2006/021745 (2006-03-01), None

Affiliated with

Also associated with

Rating

Compound planet steer differential does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compound planet steer differential, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compound planet steer differential will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4256180