Patent · US Expired

Cell door system for aircraft security

US7249737B2 · kind B2 · utility

8Cited by

3References

5Claims

0Family size

Inventors

David Simmons · Macclenny, US
Franklin R Bell · Knoxville, US

Key dates

Filing date	Jul 28, 2004
Grant date	Jul 31, 2007
Priority date	—
Expiry date	Apr 4, 2025

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64C1/1469
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A generally cylindrical security door module is designed for retrofit into the passageway of an aircraft leading to the cockpit. Two doors, forward and aft, are provided which are mounted for opening and closing upon commands emanating from the cockpit. Both doors are normally closed and only one normally opens at a time. A candidate for entrance to the cockpit is permitted to enter the module when the cockpit personnel open the aft door, which is then closed. Sensing apparatus may be employed to establish the identity and clearance of the candidate. Upon approval, the cockpit personnel open the forward door to admit the candidate. Emergency release apparatus is also described.

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