Patent · US Expired

Aircraft trim actuator shutdown monitor system and method

US4599698A · kind A · utility

17Cited by
5References
39Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 2, 1983
Grant dateJul 8, 1986
Priority date
Expiry dateMay 2, 2003

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05B9/03
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

The directions of travel of an inner and an outer loop actuator are monitored for movement in opposite directions within selected ranges and the outer loop actuator is disabled under selected conditions. These conditions may include movement of both the inner and outer loop actuators in opposite directions, any one of which has been detected moving at a rate greater than a selected rate or to a position outside a selected range. The invention is particularly suited for an aircraft trim actuator shutdown monitor system.

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