|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 6 인용 특허 : 11|
This invention discloses a gun barrel that can be used to fire large projectiles beyond the lower atmosphere, and in particular, that can be used to assist with the launching of satellites into orbit. The gun barrel has an outer support layer, an inner support layer lining the bore of the gun barrel and a compressible material disposed between the outer support layer and inner support layer. The support layers are preferably steel, and the compressible material is preferably concrete. In one embodiment, the breech portion is made of a metal such as steel...
1. A gun barrel with a breech end and an open end and a bore disposed between the breech end the open end, comprising:(a) a breech portion made of metal, and(b) an elongate portion adjacent to the breech portion, said elongate potion further comprising:(i) an outer support layer on an outside surface;(ii) an inner support layer lining the bore of the aun barrel, and(iii) a layer of concrete disposed between the outer support layer and inner support layer, said concrete having a compressive strength of at least 10 megapascals and having a compressive stre...