Patent · US Expired

Device for protecting a door sill, especially in a loading opening of an aircraft

US5312071A · kind A · utility

4Cited by
4References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 29, 1993
Grant dateMay 17, 1994
Priority date
Expiry dateMar 29, 2013

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB64C1/1415
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

The door sill of a cargo loading and unloading opening in an aircraft body is protected against damage by a cover plate that is hinged to the loading floor alongside the door opening to be tiltable outwardly to cover the sill when in the operative position. The outwardly pointing edge of the cover plate is supported by a support linkage, including a support link or section and a tie rod or bracing link, which are pivoted to the cover plate and to each other, so that the plate and its support linkage may be tilted into a recessed position in which the plate with its support linkage extends substantially in parallel and close to the door or gate that closes the cargo opening, thereby using very little space in the stowed condition.

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