Ammunition and explosives – Igniting devices and systems – Arming devices
Patent
1978-06-12
1981-11-17
Brown, David H.
Ammunition and explosives
Igniting devices and systems
Arming devices
102228, 102263, F42C 500
Patent
active
043004512
ABSTRACT:
A differential drag apparatus is disclosed for detecting air pressure forces on a drag-sensing body. The body is movable in response to a predetermined magnitude of air pressure force. A pressure regulator responds to the movement of the body by releasing uniform pressure to an activation system. The activation system in turn releases a trigger provided the air pressure force acting against the drag-sensing body remains above the predetermined magnitude for a predetermined length of time. The trigger upon release may perform any number of activates such as opening or closing an electrical circuit, initiating a mechanical response, i.e. releasing a parachute, or detonating a small munition charge. The detonation of a charge, for example, may in turn ignite a rocket motor, release an explosive, or any other of related activities. The apparatus is insensitive to short duration forces above or below the predetermined magnitude, and radiation as results from proximate nuclear blast. The trigger and regulator are initially primed by a pyro-train fuse; yet, activated only by differential movement of the drag-sensing body for a predetermined length of time.
REFERENCES:
patent: 2513185 (1950-06-01), Lauritsen
patent: 3675579 (1972-07-01), Min
patent: 3750590 (1973-08-01), Fisher
patent: 3802344 (1974-04-01), Laipple
patent: 3841220 (1974-10-01), Murphy
patent: 3962974 (1976-06-01), Anderson et al.
patent: 3968751 (1976-07-01), Palifka
patent: 3974773 (1976-08-01), Rongus
patent: 3981239 (1976-09-01), Czajkowski et al.
patent: 3992999 (1976-11-01), Chevrier et al.
patent: 4015533 (1977-04-01), Hermanson
Brown David H.
Tracor, Inc.
LandOfFree
Method and apparatus for measuring pneumatic differential drag f does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for measuring pneumatic differential drag f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring pneumatic differential drag f will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1287482