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 |
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.
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