|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||21/912.147 ; 42/744.6|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 16 인용 특허 : 21|
A pulsed electrothermal powder spray apparatus and method increases coating particle velocities to the 2,000-4000 m/sec range. The apparatus includes a containment tube, which may be a reverse shock tube, having a capillary chamber section and a short barrel section. The tube is initially filled with an inert gas and powder is deposited in the barrel just downstream from the barrel's connection to the confined capillary discharge chamber. On receipt of a trigger signal, the muzzle shutter of the barrel section quickly opens, causing the inert gas to flow...
[ We claim:] [1.] A pulsed electrothermal powder spray apparatus comprising a confined capillary arc discharge chamber, the capillary chamber having a first end and a second end, a first electrode positioned at the first end of the capillary chamber, and a second electrode positioned at the second end of the capillary chamber, a barrel having an attached end and a muzzle, with the attached end of the barrel connected to the second end of the capillary chamber such that a continuous cavity is formed from the first of the capillary chamber to the muzzle en...