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:
May. 28, 1991
Filed:
Mar. 01, 1989
Artur Kupfernagel, Stuhr, DE;
Dieter Nitsch, Delmenhorst, DE;
MBB GmbH, Bremen 1, DE;
Abstract
A mechanically operable actuating device for opening towards the outside and closing a cargo hatch or freight door in the fuselage of an aircraft comprises two hinges for connecting an upper side of the door or hatch to the fuselage; a first swivel joint floatingly mounts the upper end of a coupling member to a reenforcing part in the upper portion of the hatch or door; a second swivel joint floatingly connects a rocking arm to a hatch or door frame of the fuselage; a third swivel joint connects the rocking arm to the lower end of the coupling member; a fourth swivel joint connects one end of a gas pressure spring to the rocking arm so that the spring extends substantially parallel to the coupling member; and a fifth swivel joint connects an opposite end of the spring also to the upper end of the coupling member.