Aeronautics and astronautics – Safety lowering devices – Parachutes
Patent
1996-05-20
1998-11-24
Oberleitner, Robert J.
Aeronautics and astronautics
Safety lowering devices
Parachutes
244142, B64D 1702
Patent
active
058396950
ABSTRACT:
An improved cruciform or cross parachute, especially for personnel use, is disclosed. The central section and canopy arms are made from a zero or near zero porosity fabric, and air from underneath the canopy is vented as air venting jets through generally horizontal openings in each of the four lateral arms of the canopy. The generally horizontal openings are centrally located in the upper half of the lateral arms, preferably spaced inwardly 20% of the arm width from the arm edges and preferably at a transition point in the upper part of the arm where a tangent line intersecting the arm surface is approximately 45.degree. from the vertical axis of the parachute. Also, preferably, the opening is formed by horizontal slits. The central section can be made from the standard square crown configuration or, alternatively, effectively enlarged by removing small triangular sections at each of the four corners of the otherwise square crown. The lateral arms have a relative short length, preferably less than 75% of the crown width. The suspension lines are also relatively short, preferably, 40%-70% of the canopy cross panel length. The canopy central section and lateral arms, and the air vent jet opening leading edges, are all reinforced using conventional reinforcing tapes.
REFERENCES:
patent: 2404672 (1946-07-01), Volf
patent: 2734706 (1956-02-01), Jalbert
patent: 2745615 (1956-05-01), Fogal
patent: 2770432 (1956-11-01), Stevinson
patent: 2997263 (1961-08-01), Forichon
patent: 3073555 (1963-01-01), Barish
patent: 3298639 (1967-01-01), Heinrich et al.
patent: 3331573 (1967-07-01), Winker et al.
patent: 3474990 (1969-10-01), Flatau
patent: 3504874 (1970-04-01), Lemoigne
patent: 3531067 (1970-09-01), Mitchell
patent: 3559931 (1971-02-01), Pohl
patent: 3602462 (1971-08-01), Slater et al.
patent: 3741505 (1973-06-01), Engel
patent: 3809342 (1974-05-01), Lemoigne
patent: 4834323 (1989-05-01), Reuter
Dinh Tien
Oberleitner Robert J.
Para-Flite, Inc.
LandOfFree
Cruciform parachute design does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cruciform parachute design, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cruciform parachute design will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1695461