41 |
Energy harvesting power sources for validating firing; determining the beginning of the free flight and validating booster firing and duration |
US11654101 |
2007-01-17 |
US07762192B2 |
2010-07-27 |
Jahangir S. Rastegar; Carlos M. Pereira; Richard Dratler |
A method is provided for validating a firing of a munition and duration of firing of the munition. The method including: providing the munition with a power supply having a piezoelectric material for generating power from a vibration induced by the munition; monitoring an output from the power supply; calculating an impact pulse from the output; and determining one or more of whether the munition has been fired and the duration of firing based on the calculation. |
42 |
Multi-Stage Mechanical Delay Mechanisms For Electrical Switching and the like |
US12623442 |
2009-11-22 |
US20100132577A1 |
2010-06-03 |
Jahangir S. Rastegar |
A multi-stage inertial switch including: a housing having a first electrical contact; two or more members disposed in the housing, at least one end of each of the two or more members being sequentially movable upon a different level of acceleration of the housing; and a movable member movable within the housing by the sequential movement of the two or more members, the movable member having a second electrical contact capable of engagement with the first electrical contact to one of open or close an electrical circuit between the first and second electrical contacts upon an occurrence of a predetermined magnitude and/or duration acceleration event. |
43 |
Multi-stage mechanical delay mechanisms for inertial igniters for thermal batteries and the like |
US11888815 |
2007-08-02 |
US20080041263A1 |
2008-02-21 |
Jahangir Rastegar; Richard Murray; Thomas Spinelli |
An inertia igniter including a mechanical delay mechanism having two or more members which are movable under different acceleration conditions to sequentially move a movable member upon sequential movement of the two or more members and an ignition member actuatable by the movable member such that movement of the movable member by the two or more members ignites the ignition member. The movable member can be movable by one of translation and rotation. The inertia igniter can further comprise an impact mass releasably movable in the housing, wherein the impact mass is released and movable by movement of the movable member to impact the ignition member. The inertia igniter can also further comprise a stop member for preventing movement of the impact mass until the movable member has moved a predetermined distance. |
44 |
Energy harvesting power sources for generating a time-out signal for unexploded munitions |
US11654110 |
2007-01-17 |
US20070204756A1 |
2007-09-06 |
Jahangir Rastegar; Carlos Pereira; Richard Dratler |
A method is provided for detecting a target impact of a munition. The method including: providing the munition with a power supply having a piezoelectric material for generating power from a vibration induced by the munition; monitoring an output from the power supply; and determining whether the output of power from the power supply has dropped below a predetermined threshold. |
45 |
Mechanism for a rotating projectile fuze |
US246159 |
1981-03-23 |
US4418621A |
1983-12-06 |
Jean Rosselet |
The mechanism comprises two toothed rotary bodies (1,2) sensitive to the gyratory centrifugal force of the projectile. The rotary bodies (1,2) mesh with each other. The body (1) simultaneously meshes with a toothed pinion (9) the shaft (10) of which carries, for example, the escapement wheel of a delay device having a balance of the fuze. The rotary bodies (1,2) conjointly develop a substantially constant driving couple which is the resultant of positive driving couple of one of them and of a negative braking couple of the other. |
46 |
Mechanical munition flight environment sensor |
US928329 |
1978-07-26 |
US4215634A |
1980-08-05 |
John D. Forsberg |
An environment sensing system that prevents rotation of a grooved rotor surface mounted on a shaft, with a ball, until a deceleration force causes the ball to climb an inclined surface, a bias spring causes the detent grooves to maintain alignment with the ball. |
47 |
Device for measuring distance of travel by a projectile |
US33666373 |
1973-02-28 |
US3853062A |
1974-12-10 |
COLE L |
The distance traversed by a spin-stabilized projectile is determined by a pendulum attached inside the fuze of the projectile so that each complete swing of the pendulum is equal or proportional to one complete revolution of the spinning shell. The distance traversed by the projectile is determined from reading of the number of complete cycles (frequency) made by the pendulum which, in turn, is equal to the number of revolutions of the spinning shell.
|
48 |
Rocket fuse with delayed-action arming |
US3633511D |
1969-11-12 |
US3633511A |
1972-01-11 |
MAURY LOUIS |
A rocket fuse with delayed-action arming comprises a fixed cylinder containing microballs and a spring-loaded plunger in the cylinder tends to force the balls out through a calibrated orifice. In the stored position the orifice is closed by a closing ring which can slide on the cylinder with a helical movement to open the orifice at the end of such movement. The movement takes place due to inertia when the rocket is launched and the ensuing movement of the plunger is used to arm the detonator.
|
49 |
Antishock spin device |
US3613594D |
1958-02-13 |
US3613594A |
1971-10-19 |
BURKE JOHN F |
1. An improved ordnance fuze-arming mechanism for use on a spinning missile, said mechanism comprising in combination: a cylindrical fuze body having a flat circular face located in a plane perpendicular to the axis of missile rotation, first and second flat planar leaf members, each of said members having one of its ends pivotally connected to said face at spaced-apart points such that a flat side of each leaf member is movable around its pivot point parallel to said face, the other end of each leaf member extending adjacent the perimeter of said face and curving to engage each other at their outermost ends, the other end of the first leaf member having an elongated serrated blade portion, said blade portion having opposite edges with a series of adjacent grooves formed in each edge, the grooves on opposite edges being arranged so that the inner apexes of the grooves in one edge are opposite the outer apexes of the grooves in the other edge, the other end of said second leaf having an elongated opening therein for receiving said serrated blade portion, spring means connected to said fuze body and to the pivoted ends of said members so that said blade portion is urged into said opening, said opening having opposite inwardly projecting lips forming an entrance and adapted to engage said blade such that when one lip engages an inner apex on one edge, the other lip is opposite but just out of contact with an outer apex on the other edge, said lips thereby alternately locking and unlocking with said grooves when said leaf members are urged apart by continuous centrifugal forces produced by continued missile rotation, the alternate locking and unlocking of said leaf members continuing until said members separate, and means in said fuze to effect detonation when said leaf members separate.
|
50 |
Acceleration-actuated mechanism |
US3610154D |
1968-12-27 |
US3610154A |
1971-10-05 |
BROWN DAVID B |
A mechanism for driving a striker means and igniting a missile second motor responsive to acceleration forces. The acceleration forces act on a first latching means to unlatch a rotor assembly which operates a time delay mechanical movement connected to the rotor. Operation of the time delay mechanical movement releases a second latching means, and force moving means of the second latching means provides the power to drive the striker means against the second motor igniter.
|
51 |
Clockwork fuze |
US3530796D |
1966-12-15 |
US3530796A |
1970-09-29 |
KAISER PAUL; MUELLER JOSEF |
|
52 |
Flare igniter |
US3530795D |
1968-06-10 |
US3530795A |
1970-09-29 |
DENIS JOSEPH ALBERT RAYMOND; PARTRIDGE JACK R |
|
53 |
Spinning fuzes,in particular for small caliber shells |
US3450048D |
1967-03-13 |
US3450048A |
1969-06-17 |
GUERNE WILLIAM |
|
54 |
Spinning projectile fuzes |
US71593958 |
1958-02-18 |
US3030886A |
1962-04-24 |
HELMUT JUNGHANS; PAUL KAISER |
|
55 |
Fuzes having a self-destructive action |
US61510956 |
1956-10-10 |
US2949856A |
1960-08-23 |
MANTEL ALBERTUS G |
|
56 |
Mechanically operated time fuse for artillery ammunition |
US56158456 |
1956-01-26 |
US2939394A |
1960-06-07 |
RENE LEROY |
|
57 |
Safety device for a projectile |
US33615653 |
1953-02-10 |
US2773449A |
1956-12-11 |
BIRGER KARSBERG LARS ANDERS |
|
58 |
Time fuse |
US30055139 |
1939-10-21 |
US2453822A |
1948-11-16 |
WHITEHEAD RICHARD H |
|
59 |
Delay arming device |
US58887945 |
1945-04-17 |
US2446545A |
1948-08-10 |
MECASLIN JAMES F |
|
60 |
Casing for mechanical fuse mechanisms |
US72843234 |
1934-05-31 |
US2007732A |
1935-07-09 |
ANDRE VARAUD |
|