Launch tube with adjustable plenum

Details Launch tube with adjustable plenum Launch tube with adjustable plenum

2006-03-21

2006-03-21

Johnson, Stephen M. (Department: 3641)

Ordnance

Rocket launching

Underwater launching

C089S001817, C089S001818

Reexamination Certificate

active

07013788

ABSTRACT:
A launch tube assembly including an aft launch tube portion, a forward launch tube portion, and a transfer sleeve having a first end fixed to and adjacent the forward end of said aft launch tube portion and a second end adjustably receiving the forward launch tube portion. A forward end of the aft launch tube portion faces a rearward end of the forward launch tube portion within the transfer sleeve. An adjustable plenum is present having a volume within the transfer sleeve defined by an adjusted distance between the facing ends of aft and forward launch tube portions. An end cap is pinned to a forward end of the forward launch tube portion, a gas generator housed in the aft launch tube portion, and a countermeasure device is housed in the forward launch tube portion. An adjustably selected volume of the plenum is such that a gas generated by the gas generator will enable propulsion of the countermeasure device at a predetermined acceleration from the forward launch tube portion.

REFERENCES:
patent: 2966827 (1961-01-01), Harvey
patent: 3745876 (1973-07-01), Rocha
patent: 3946638 (1976-03-01), Cobb
patent: 4523538 (1985-06-01), Hollmann et al.
patent: 6119454 (2000-09-01), Valisko
patent: 2-233998 (1989-03-01), None

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