|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||244/122.AF; 102/306; 102/307; 089/001.14|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 6 인용 특허 : 10|
The present invention involve a method for severance of materials made of polycarbonate, polycarbonate laminate and aciylic/polycarbonate laminate, a canopy fracturing system and a conopy having the canopy fracturing system. The present invention utilizes a linear shaped explosive charge placed at a predetermined distance or stand off from the polycarbonate material to be severed. The coreload of the charge is determined such that the minimum coreload necessary to effect severance of a given thickness of polycarbonate material is utilized. A retainer is ...
What is claimed is: 1. A method of severing a pattern of a canopy, comprising the steps of: placing a first linear shaped charge along the pattern in proximity to a region comprised of a material comprising a polycarbonate or a laminate including polycarbonate; placing a second linear shaped charge over said first linear shaped charge in such a way that said first linear shaped charge runs over said second linear shaped charge; and detonating said second linear shaped charge so that said first linear shaped charge is detonated to sever the pattern from ...