EP 1461245 A4 20081119 - RAM AIR PARACHUTE WITH IMPROVED CANOPY DESIGN
Title (en)
RAM AIR PARACHUTE WITH IMPROVED CANOPY DESIGN
Title (de)
STAULUFT-FALLSCHIRM MIT VERBESSERTER FALLSCHIRMKAPPENAUSFÜHRUNG
Title (fr)
PARACHUTE PLANANT A VOILURE AMELIOREE
Publication
Application
Priority
- US 0239520 W 20021209
- US 34100201 P 20011207
- US 34105301 P 20011207
- US 34105501 P 20011207
- US 34099301 P 20011207
Abstract (en)
[origin: WO03053779A2] The ram air parachute has a number of novel features which limit distortions to the canopy and improve performance. Restrictions on the inlets to the cells operate reduce drag during flight and to reduce opening forces. The restrictions include triangular sections blocking portions of the inlets. The triangular sections may be positioned at loaded and non-loaded ribs. Furthermore, the triangular sections are dimensioned to tension the top skin between the loaded ribs and non-loaded ribs to preserve an aerodynamic shape during flight without cross-bracing. The loaded ribs may be shortened to create a zig-zag pattern at the front edge of the bottom skin for improved deployment with reduce drag during flight. The top skin may be shaped to increase tension in certain areas for improved stability. Additionally, flexible stiffeners may be attached to the ribs of the canopy at the nose to maintain its shape. Finally, the ribs may have different heights to adjust tensioning of the bottom skin and non-loaded ribs, to help reduce distortion on the top skin.
IPC 1-7
IPC 8 full level
B64C 31/036 (2006.01); B64D 17/02 (2006.01)
CPC (source: EP)
B64C 31/036 (2013.01); B64D 17/025 (2013.01)
Citation (search report)
- [X] US 5201482 A 19930413 - REAM STANLEY M [US]
- [XA] US 3851348 A 19741203 - WEDDING L, et al
- [XA] GB 1585099 A 19810225 - JONES A W, et al
- [A] US 5431506 A 19950711 - MASUNAGA SATORU [JP]
- See references of WO 03053779A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
WO 03053779 A2 20030703; WO 03053779 A3 20031120; AU 2002362135 A1 20030709; AU 2002362135 A8 20030709; EP 1461245 A2 20040929; EP 1461245 A4 20081119
DOCDB simple family (application)
US 0239520 W 20021209; AU 2002362135 A 20021209; EP 02797268 A 20021209