Projectile having fins with spiracles

Details Projectile having fins with spiracles Projectile having fins with spiracles

2011-08-09

2011-08-09

Price, Thomas (Department: 3643)

Aeronautics and astronautics

Missile stabilization or trajectory control

Externally mounted stabilizing appendage

Reexamination Certificate

active

07994458

ABSTRACT:
A projectile has fins that are hingedly coupled to a fuselage. The fins are configured to wrap around the fuselage, assuming a location as close as possible to the fuselage, when the projectile is in a gun or launch tube. The fins have spiracles, one or more openings in each of the fins that allow pressurized gases to pass therethrough. The spiracles may be always open, or may open only when there is a sufficient pressure differential between the sides (major surfaces) of the fins. The spiracles allow release of pressurized gases that are trapped between the fins and the fuselage during the launch process. This prevents undesired outward movement or bending of the fins when the projectile reaches a muzzle brake during launch, a structure which causes a sudden release of pressure at radially outer locations of the launch tube.

REFERENCES:
patent: 3622103 (1971-11-01), Meier
patent: 4165849 (1979-08-01), Fox
patent: 4546940 (1985-10-01), Andersson et al.
patent: 5048773 (1991-09-01), Washington et al.
patent: 6571715 (2003-06-01), Bennett et al.
patent: 6978967 (2005-12-01), Scheper et al.
patent: 1322573 (1973-07-01), None
patent: 2274904 (1994-08-01), None
patent: 05149698 (1993-06-01), None
Amended claims from U.S. Appl. No. 12/257,699.
International Search Report and Written Opinion from corresponding International Application No. PCT/US09/51801.
International Preliminary Report on Patentability from corresponding International Application No. PCT/US09/51801.

Affiliated with

Also associated with

Rating

Projectile having fins with spiracles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Projectile having fins with spiracles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Projectile having fins with spiracles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2779371