# US 4,399,964 A · Safety device for use in aircraft and an aircraft provided with such safety device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 4,399,964 A - Document ID: US4399964A - Status: Granted - Kind: A - Application number: 06/229,115 - Filed: 1981-01-28 - Granted: 1983-08-23 - Earliest claimed: 1981-01-28 - Inventors: Vellaiappan V. Thangathirupathy - Web page: https://patentgrep.com/patent/US4399964A ## CPC - B64D 33/04: of exhaust outlets or jet pipes - B64C 25/423: {Braking devices acting by reaction of gaseous medium} - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - B64C: AEROPLANES; HELICOPTERS ## Abstract The common problems of nose diving and rolling over of airborne craft are sought to be overcome according to this invention by providing a safety device consisting of collapsible cover atop the fuselage, the cover being adapted to be opened or closed by the pilot of the craft. ## Claims ### Claim 1 A safety device for use with an aircraft, said safety device comprising: a cover which rests apart from and above said aircraft; at least one sleeve member which surrounds the fuselage belly of said aircraft, said cover being movably attached to said at least one sleeve member; and a linking means attached to said at least one sleeve member and operable to move said cover from a first position lying upon the outside surface of the aircraft fuselage to a second position extending forwardly from its attachment to said at least one sleeve member and upwardly from said fuselage. ### Claim 2 (depends on 1) A safety device as claimed in claim 1 wherein said cover corresponds in shape to the curvature of said aircraft and rests in front of the forward edges of the wings of said aircraft and behind the cockpit of said aircraft. ### Claim 3 (depends on 1) A safety device as claimed in claim 1, wherein said cover means is opened or collapsed by a coupling element attached thereto, the other end of said coupling element is capable of being wound over a link member rotatably mounted on a second sleeve member disposed around the fuselage belly, said link member being adapted to be actuated from pilot's cabin by means of a conventional arrangement. ### Claim 4 (depends on 3) A safety device as claimed in claim 3 wherein said linking means is comprised of a shaft with a pulley and a chain. ### Claim 5 (depends on 1) A safety device as claimed in claim 1 wherein said sleeve member consists of a plurality of flexible sheets attached together. ### Claim 6 (depends on 3) A safety device as claimed in claim 3, wherein said link member is a shaft. ### Claim 7 (depends on 1) An aircraft as claimed in claim 1, wherein said cover is pivotally mounted on a first sleeve member disposed around the fuselage belly, said cover being an elongated metallic plate having a curved cross-section the curvature of which is corresponding to that of the fuselage of the craft and being opened or closed by a coupling element attached thereto, the other end of said coupling element is capable of being wound over a link member rotatably mounted on a second sleeve member also disposed around the fuselage belly, the link member, in turn, is adapted to be actuated from the pilot's cabin. ### Claim 8 A safety device for use in an aircraft, said safety device comprising: a cover; a first sleeve member; a second sleeve member; said cover being disposed atop the fuselage and between the wings and cockpit of said aircraft and being pivotally mounted on said first sleeve member, said first sleeve member being disposed around said fuselage body, said second sleeve member being disposed around the belly of said fuselage and between said first sleeve member and said cockpit; a coupling element, coupling said cover to said second sleeve member; and a winding roller pivotally attached to said second sleeve member for engagement with said coupling element to control the relative position of said cover with respect to said second sleeve member. ### Claim 9 (depends on 8) A safety device as claimed in claim 8, wherein said winding roller is a shaft provided with a pulley. ### Claim 10 An aircraft provided with a safety device comprising: a cover; a first sleeve member which surrounds the belly of the fuselage of the aircraft and pivotally connects to said cover, a second sleeve member which surrounds the belly of the aircraft fuselage; a coupling means connected to said cover; and a linking means connected to said coupling means and to said second sleeve; said cover being comprised of an elongated and curved metallic plate corresponding in shape to that of the aircraft fuselage and lying atop of said fuselage between the wings and cockpit of the aircraft, said cover being movable between open and collapsed positions. ### Claim 11 A safety device for use with an aircraft comprising: a cover; at least one sleeve member disposed around the belly of the aircraft fuselage; a winding roller pivotally attached to said at least one sleeve member; and a coupling element engaging said winding roller and said cover; said cover being disposed atop said fuselage between the wings and the cockpit and movable to open and collapsed positions by actuation of said winding roller.