Patent · US Expired

Power take-off gearing for operating separate drives, for use for the propellers of an amphibious vehicle, or the like

US4257505A · kind A · utility

8Cited by
6References
21Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 26, 1978
Grant dateMar 24, 1981
Priority date
Expiry dateJul 26, 1998

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60F3/0007
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

Power take-off gearing for separate drives, for the propellers of an amphibious vehicle, or the like: A main drive shaft drives two separate driven shafts through respective slip clutches. Each clutch comprises a set of interleaved disks. A respective plunger selectively presses or does not press each set of disks together to drive each driven shaft at a speed dependent upon the plunger pressure. Hydraulic means which are solenoid valve controlled selectively activate and deactivate the clutch plungers, each clutch has its own control valve. A brake for both driven shafts is also activated by the solenoid valve.

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