Accession Number : ADD002866

Title :   Injection-Molding Apparatus for Attaching End Fittings to Detonating Cords.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Smith,Allen Howard

Report Date : 16 Jun 1975

Pagination or Media Count : 13

Abstract : The patent application relates to a method for attaching a typical end fitting arrangement which includes a sleeve-like bearing member receiving an end of the explosive cord and a coupling member, such as a threaded nut, slipped axially over the cord into a fixed position relative to the sleeve. To securely bind together the cord and the sleeve, a void is provided radially inwardly of the nut and a thermosetting material is directly injected into the void to flow over and around the components. Upon hardening, all components are locked together as an integral body. The injected material further provides a significantly-improved hermetic seal. Special thermosetting materials having short glass fiber fillers are used to assure load-bearing strength.

Descriptors :   *Detonating cord, *Fittings, *Injection molding, Sleeves, Hermetic seals, Thermosetting plastics, Molding techniques

Subject Categories : Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE