Spiral reefed variable drag parachute
阅读：45发布：2022-02-16
专利汇可以提供Spiral reefed variable drag parachute专利检索，专利查询，专利分析的服务。并且This invention relates to a parachute having reefing lines formed about the body or canopy of the parachute in a spiral configuration in such a manner as to control the opening shock and rate of descent of such parachute. The spiral reefing of the parachute effectively increases or decreases the canopy area thereby controlling the aerodynamic drag of the parachute.，下面是Spiral reefed variable drag parachute专利的具体信息内容。
1. A parachute comprising: a canopy; means for attaching a mass to said canopy; means attached to said canopy for reefing said canopy in a spiral manner, and; means connected to said canopy for controlling said reefing means.
2. A parachute according to claim 1, and further comprising that: said canopy is generally circular in shape, and; said reefing means comprises a plurality of lines positioned about said canopy in a spiral-shaped manner whereby the drag of said parachute is varied by actuating said reefing means.
3. A parachute according to claim 2, and further comprising that: said canopy having an outer periphery and a center section, and; said plurality of reefing lines are connected together at said center section and are secured to the periphery of said canopy.
4. The parachute according to claim 2, and further comprising that: said canopy having an outer periphery and a center section, and; said plurality of reefing lines are connected together and are secured to said canopy at said center section.
5. A parachute according to claim 2, and further comprising that: said canopy is generally circular in shape and is comprised of an outer periphery and a center section, and; said plurality of reefing lines are connected together at said center section and are secured to said canopy at said center section.
6. A parachute according to claim 2 and further comprising that: said canopy is generally circular in shape and is comprised of an outer periphery and a center section, and; said plurality of reefing lines are connected together at said periphery and are secured to said outer periphery.
7. A variable drag parachute comprising: a canopy having an apex hub and a skirt; shroud lines attached to said skirt; sensing means for detecting the relative velocity of said parachute, said sensing means being connected to said shroud lines, said sensing means including a programmed spool, and; reefing lines positioned about said canopy in a spiral configuration and connected to said programmed spool whereby said spool acts on said reefing lines in resPonse to said sensing means thereby controlling the drag of said parachute.
8. A variable drag parachute according to claim 7, and further comprising that: said reefing lines are joined at said apex hub and are secured to the skirt of said canopy.
9. A variable drag parachute according to claim 7, and further comprising that: said reefing lines are joined at said skirt and are secured to said apex hub of said canopy.
10. A variable drag parachute according to claim 7, and further comprising that: said reefing lines are joined at said apex hub and are secured thereto.
11. A variable drag parachute according to claim 7, and further comprising that: said reefing lines are joined at said skirt and are secured thereto.
12. A variable drag parachute comprising: a canopy, said canopy having a circular-shaped concentric opening therein and a generally circular skirt defining the outer periphery of said canopy; shroud lines emanating from said skirt and being suspended from said skirt; control means connected to and supported by said shroud lines for sensing the descent of said parachute relative to the atmosphere through which said parachute descends and for producing a control signal when said parachute is descending at a rate other than a preselected rate; a mass connected to said control means; reefing lines positioned about said canopy in a spiral-shaped configuration, said reefing lines being joined at a junction, and; a control line connecting said reefing line junction and said control means whereby said control signal acts on said control line and said reefing lines to vary the drag of said canopy as the parachute descends through the atmosphere.
13. The variable drag parachute according to claim 12, and further comprising that: said reefing lines are joined at said concentric-shaped circular opening and are secured to said canopy at said skirt.
14. The variable drag parachute according to claim 12, and further comprising that: said reefing lines are joined at said circular-shaped concentric opening and are secured thereto.
15. The variable drag parachute according to claim 12, and further comprising that: said reefing lines are joined at said skirt and are secured to said circular-shaped concentric opening.
16. The variable drag parachute according to claim 12, and further comprising that: said reefing lines are joined at said skirt and are secured thereto.
17. The variable drag parachute according to claim 12, and further comprising: a ram air inflatable structure mounted on said circular-shaped concentric opening.
18. The variable drag parachute according to claim 12, and further comprising that: said canopy is comprised of an inside and an outside, and; said reefing lines are positioned about the inside of said canopy.
19. The variable drag parachute according to claim 12, and further comprising that: said canopy is comprised of an inside and an outside, and; said reefing lines are positioned about the outside of said canopy.
20. The variable drag parachute according to claim 17, and further comprising that: said generally circular-shaped skirt is formed with scallops therein to assure rotation of said canopy about its descent path thereby imparting greater stability and radar reflectivity to said structure.
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