Pyrotechnic device
AssigneeJ.E.M. Smoke Machine Company
InventorNigel Morris
Life of this patent
Estimating the term…
Abstract
A pyrotechnic device comprises a receptacle which contains a charge of pyrotechnic material and an electric fuse to initiate the charge. The receptacle is formed of a plastics housing which has an area formed of lines of weakness adapted to rupture on activation of the pyrotechnic material and a closure having an integrally moulded projection which defines a screw-thread, electric contacts being associated with the projection and trapping the bared ends of wires associated with the fuse.
Claims7
An electrical contact arrangement comprising an elongate element formed of an electrically insulating material having a screw thread formed on the exterior thereof, adjacent one end of the element, the element being provided with two separate metallic contacts at spaced locations, and exposed to the exterior of the element, and contacting leads extending to the metallic contacts through the interior of the element, one said contact being at a location spaced from an end of the element and the other said contact being located at said one end of the element, the screw thread being located between the two contacts.
Dependencies are inferred from the claim text.