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US 9,123,487 B2Granted
Mechanical inertial igniter with high-height drop safety feature for thermal batteries and the like
AssigneeOmnitek Partners LLC
InventorJahangir S. Rastegar
Life of this patent
Estimating the term…
Abstract
A method for initiating a thermal battery including: releasing an engagement between an element and a striker mass upon an acceleration time and magnitude greater than a first threshold; and moving at least one member into a path of the element to prevent the element from releasing the striker mass only where the acceleration time and magnitude is greater than a second threshold, the second threshold being greater than the first threshold.
Claims15
An inertial igniter comprising:
- a striker mass movable towards one of a percussion cap or pyrotechnic material;
- an element movable with the striker mass for releasing the striker mass to strike the percussion cap or pyrotechnic material upon an acceleration time and magnitude greater than a first threshold;
- and
- at least one member configured to be movable into a path of the element to prevent the element from releasing the striker mass only where the acceleration time and magnitude is greater than a second threshold, the second threshold being greater than the first threshold.
1 more element
Dependencies are inferred from the claim text.