Patent · US Expired

Automatic four-wheel drive transfer case

US4098379A · kind A · utility

18Cited by
6References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 18, 1975
Grant dateJul 4, 1978
Priority date
Expiry dateDec 18, 1995

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60K17/3505
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A power transfer mechanism incorporated in a multiple path drive system comprising a transfer case disposed between a source of input torque and a pair of drive axles. In one mode, torque is transferred directly to one drive axle and automatically to the other drive axle through a double-acting overrunning clutch when required. In another mode, torque is transferred to both drive axles in a locked-up condition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.