The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 26, 1983
Filed:
Sep. 30, 1981
James E Deviny, Redmond, WA (US);
Miloslav Puncoch, Seattle, WA (US);
The Boeing Company, Seattle, WA (US);
Abstract
A latch and lock mechanism for an aircraft cargo door assembly is disclosed. The mechanism is adapted to a cargo door assembly of the type having an outwardly opening, nonplug-type cargo ramp and an inwardly opening, plug-type cargo door hinged to opposite sides of a doorway so as to form a two-part closure member in coplanar alignment with the airplane fuselage when the door assembly is closed. The latch and lock mechanism preferably includes a plurality of latch units that secure the cargo ramp in its closed position. The latch units are connected through a cam-actuated interlock mechanism to the plug-type cargo door. The interlock mechanism is such that the cargo ramp latches can only be actuated when the cargo door is in an open position, and further such that the cargo door cannot be closed unless the cargo ramp latches are in a latched position. The interlock mechanism precludes the possibility of inadvertent unlatching of the cargo ramp while the airplane is pressurized and in flight, and also prevents the possibility of inadvertently leaving the cargo ramp in a closed but unlatched state during pressurization of the cabin.