Parachute with low opening shock and high stability
OwnerJarmo I. Uotilainventor
Life of this patent
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Abstract
A parachute comprising a non-porous canopy having an outer peripheral skirt and a substantially centrally located vent. The canopy includes a plurality of circumferentially spaced holes which are all spaced from the vent and which are confined within a zone of the canopy between 40 and 80% of the radial distance from the center of the vent to the skirt. The total area of the holes is between 10 to 25% of the total area of the canopy.
Claims9
A parachute which can withstand high pressure loading comprising, a non-porous canopy having an outer peripheral skirt and a substantially centrally located vent opening, said canopy including a plurality of circumferentially spaced holes each positioned at a selected radial distance from said vent opening, said plurality of holes all disposed in a zone of said canopy which is confined between 40 and 80% of the radial distance from the center of said vent opening to said skirt, the total area of said holes being from 10 to 25% of the total area of said canopy, said canopy comprising a plurality of circumferentially disposed substantially triangular gores connected to each other at seams extending radially from said vent opening to said skirt, each of said gores having a width in said vent opening which is substantially larger than D.sub.v sin(180.degree./N), where D.sub.v is the diameter of said vent opening and N is the number of gores comprising said canopy, each seam between adjacent gores being substantially a straight line.
Dependencies are inferred from the claim text.