Patent · US Expired

Trim tab actuator for marine propulsion device

US4787867A · kind A · utility

25Cited by
3References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 20, 1987
Grant dateNov 29, 1988
Priority date
Expiry dateMay 20, 2007

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB63H20/12
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

An improved trim tab actuator for an outboard drive for assisting in steering by creating a hydrodynamic steering force immediately upon sensing of a steering input force. The mechanism includes an operator control that permits the operator to select from any of a plurality of preset maps for achieving the optimum trim tab condition.

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