Tailorable roll-bonded insensitive munitions case
US5170007A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1991 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | Oct 15, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B39/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A tailorable, roll-bonded, insensitive munitions motor case and method of production. The motor case comprises a sheet of fiber reinforced thermoplastic, thermoset or other suitable material rolled to form a case with a tubular configuration having at least one layer of material, and a coating of adhesive on at least part of said sheet for bonding the sheet to itself for maintaining the tubular configuration. The adhesive has a bond-strength breakdown temperature which is below the autoignition temperature of the housed propellant, thereby enabling the case to separate and un-roll when the breakdown temperature is reached to preclude dangerous propellant pressurization within the case. The method of production includes the steps of applying an adhesive to the sheet, rolling the sheet around a cylindrical tool to form a tubular case having at least one layer, and curing the case. Preferably the case is cured while on a tool which has a coefficient of thermal expansion which is greater than that of the sheet. Also, the sheet may be rolled such that there is a longitudinal section of the case which has one less layer of material than the remainder of the case, thereby to cause the cas…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.