| US 7,552,681 B1 | ||
| MEMS fuze assembly | ||
| Gerald Laib, Olney, Md. (US); David Olson, Chesapeake Beach, Md. (US); Daniel Jean, Odenton, Md. (US); John Hendershot, Dunkirk, Md. (US); Lawrence Fan, Vienna, Va. (US); Michael Beggans, Waldorf, Md. (US); and Ezra Chen, Potomac, Md. (US) | ||
| Assigned to The United States of America as represented by the Secretary of the Navy, Washington, D.C. (US) | ||
| Filed on Jul. 31, 2007, as Appl. No. 11/894,628. | ||
| Int. Cl. F42C 15/34 (2006.01) | ||
| U.S. Cl. 102—254 [102/233; 102/249; 102/251] | 9 Claims |
| 1. A MEMS fuze assembly for use in a munitions round, comprising:
a moveable slider;
a microdetonator being carried by said moveable slider for positioning relative to a secondary lead for igniting said secondary
lead when in an armed position;
a setback activated lock comprising a setback locking arm in an interlocking relationship with said moveable slider and said
setback locking arm being maintained in position by said setback activated lock for preventing movement of said moveable slider;
a spin activated lock comprising a spin locking arm in interlocking relationship with said moveable slider where said spin
locking arm is maintained in position by said spin activated lock to prevent movement of said moveable slider; and
a thermoelectric actuator being coupled to said moveable slider for moving said moveable slider,
wherein said setback activated lock is operable to allow disengagement of said setback locking arm from said moveable slider
when said munitions round has attained a certain axial acceleration,
wherein said spin activated lock is operable to allow disengagement of said spin locking arm from said moveable slider when
said munitions round has attained a certain centrifugal acceleration, and
wherein said setback locking arm and said spin locking arm are disengaged from said moveable slider so that said moveable
slider is operable to move said microdetonator into said armed position to ignite said secondary lead.
|