Ammunition and explosives – Igniting devices and systems
Patent
1978-10-23
1981-01-06
Sebastian, Leland A.
Ammunition and explosives
Igniting devices and systems
102 921, F42B 3100
Patent
active
042429617
ABSTRACT:
An obturator for a projectile to be fired from a rifled barrel is provided in accordance with this invention, with this obturator being mounted on the projectile in such a way as to permit rotational slippage. A preferred form of our obturator comprises a ring of non-metalic material, which ring is capable of being mounted on a circular body portion of the projectile. An external portion of the obturator ring has a plurality of encircling slots, essentially parallel to each other, which slots are rearwardly inclined so as to define a plurality of chevron-like members designed to forcibly engage the rifling of the barrel. The interior of the obturator ring is designed to slip rotationally with respect to the projectile body portion as the projectile travels along the barrel, thereby advantageously minimizing the rotation of the projectile as a result of rifling effects. One embodiment of an obturator in accordance with this invention may be designed to disintegrate as it leaves the barrel, whereas another embodiment may utilize an overwrap of high temperature filamentary material in at least some of the slots, which overwrap serves to increase the hoop strength of the obturator.
REFERENCES:
patent: 2996012 (1961-08-01), Butler
patent: 3769912 (1961-11-01), Friend
patent: 3786760 (1974-01-01), Feldmann
patent: 3847082 (1974-11-01), Feldmann
patent: 3939773 (1976-02-01), Jenkins et al.
Hyder Jonnie O.
Moredock Jerry L.
Wagner James E.
Chin Gay
Martin Marietta Corporation
Renfro Julian C.
Sebastian Leland A.
LandOfFree
Chevron grooved decoupling obturator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chevron grooved decoupling obturator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chevron grooved decoupling obturator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-280081