US 7,320,286 B2
Setback switch for safe and arm
Michael J. Karmazyn, Baltimore, Md. (US)
Assigned to AAI Corporation, Hunt Valley, Md. (US)
Filed on Oct. 18, 2004, as Appl. No. 10/965,726.
Prior Publication US 2007/0295233 A1, Dec. 27, 2007
Int. Cl. F42C 15/24 (2006.01)
U.S. Cl. 102—251  [102/216; 102/247] 18 Claims
OG exemplary drawing
 
1. A switch mechanism, comprising:
a tubular enclosure;
a contact pin electrically insulated from the tubular enclosure;
a g-weight positioned inside the tubular enclosure and movable from an open position to a closed position; and
a transparent closure that encloses one end of the tubular enclosure,
wherein the g-weight is in electrical contact with the contact pin and the tubular enclosure when the g-weight is in the closed position, such that a continuous electrical path exists from the contact pin to the tubular enclosure,
the g-weight is for moving from the open position to the closed position when the switch mechanism is subjected to an acceleration greater than a threshold acceleration, and
the g-weight is visible through the transparent closure such that the position of the g-weight can be determined without removing the transparent closure from the tubular enclosure.