US 5,635,667 A · Fuse plug pyrotechnic firing device

Abstract

A fuse plug pyrotechnic firing device includes a body, a pyrotechnic train, firing pin and a driving device. The body has an axis and a bore disposed along the axis. The pyrotechnic train is disposed along the axis and includes an upper part and a lower part. The firing pin has a firing pin axis and is disposed within the bore between the upper part and the lower part. The firing pin is also disposed to ignite the lower part. The driving device is coupled to the firing pin and to the upper part. The driving device drives the firing pin to move along the firing pin axis and to ignite the lower part, the firing pin rotating about the firing pin axis under pressure of gases generated by the ignition of the lower part. As a result, safe and effective operation of the fuse plug pyrotechnic firing device is ensured.

Claims27

Dependent claims

A fuse plug pyrotechnic firing device, comprising:

a body having an axis and a bore disposed along said axis;
a pyrotechnic train disposed along said axis and having an upper part and a lower part;
a firing pin having a firing pin axis, said firing pin being disposed within said bore between said upper part and said lower part and configured to ignite said lower part;
and
a driving device coupled to said firing pin and to said upper part, and operable to move said firing pin along said axis such that said firing pin ignites said lower part, and wherein said firing pin rotates about said firing pin axis under pressure of gases generated by ignition of said lower part.

2 more elements

Dependencies are inferred from the claim text.

Fuse plug pyrotechnic firing device

Life of this patent

Fuse plug pyrotechnic firing device

Life of this patent

Abstract

Claims27