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    • 3. 发明授权
    • Laval nozzle with central feed tube and particle comminution processes
thereof
    • 拉瓦尔喷嘴,具有中央进料管及其颗粒粉碎工艺
    • US5683039A
    • 1997-11-04
    • US623241
    • 1996-03-28
    • Gerardo LeuteLewis S. SmithKenneth D. Henderson
    • Gerardo LeuteLewis S. SmithKenneth D. Henderson
    • B02C19/06
    • B02C19/068
    • A fluidized bed jet mill for grinding particulate material including a jetting nozzle comprising: a first hollow cylindrical body with a first diameter, wherein one end of the body is directed towards the center of the jet mill and the other end traverses the wall of the jet mill; and a hollow cylindrical curvilinear body with a diameter which is less than said first diameter, wherein the first end of the curvilinear body is collinear with the long axis of said first hollow cylindrical body, wherein the first end of the curvilinear body is at a point approximately equal to the end of the first hollow cylindrical body, wherein the second end of the curvilinear body passes through an opening in the side wall of said first hollow cylindrical body, and wherein said side wall opening is leak free and resides within the grinding chamber of the fluid bed mill; and wherein the nozzle communicates the gas stream from a high pressure source to the grinding chamber.
    • 一种用于研磨包括喷射喷嘴的颗粒材料的流化床喷射磨机,包括:具有第一直径的第一中空圆柱形主体,其中主体的一端指向喷射式粉碎机的中心,另一端横过喷射器的壁 磨; 以及直径小于所述第一直径的中空圆柱形曲线体,其中所述曲线体的第一端与所述第一中空圆柱体的长轴共线,其中所述曲线体的第一端处于点 大致等于第一中空圆柱体的端部,其中曲线体的第二端穿过所述第一中空圆柱体的侧壁中的开口,并且其中所述侧壁开口不泄漏并且位于研磨室内 的流化床磨机; 并且其中所述喷嘴将来自高压源的气流连通到所述研磨室。
    • 7. 发明申请
    • Prepaid billing apparatus and method for printing systems
    • 用于打印系统的预付费计费装置和方法
    • US20060004672A1
    • 2006-01-05
    • US10881463
    • 2004-06-30
    • Gerardo Leute
    • Gerardo Leute
    • G06F17/60
    • G07F11/002G06Q20/145G06Q20/28G06Q20/3672G07F5/18
    • A method of providing prepaid billing by receiving a request for a recharge token from a customer; accepting payment information and the number of additional prints requested from the customer; receiving from the customer a unique serial number for the printing system, a current copy count for the printing system, and a remaining copy count for the printing system; generating a recharge token; encrypting the recharge token according to an encryption key stored in a first database; transmitting the encrypted recharge token to the customer; storing the encrypted recharge token in a second database; decoding the encrypted recharge token according to an encryption key stored in the second database; determining whether the decoded recharge token is valid; and where the decoded recharge token is valid, increasing the remaining copy count by the number of additional prints requested.
    • 一种通过从客户接收对充值令牌的请求来提供预付费计费的方法; 接受付款信息和客户要求的附加打印件数量; 从客户接收用于打印系统的唯一序列号,打印系统的当前复印计数以及打印系统的剩余副本计数; 生成充值令牌; 根据存储在第一数据库中的加密密钥加密所述再充值令牌; 向客户发送加密的充值令牌; 将加密的充值令牌存储在第二数据库中; 根据存储在第二数据库中的加密密钥解密加密的再充值令牌; 确定解码的再充值令牌是否有效; 并且在解码的再充值令牌有效的地方,将剩余的复制计数增加所请求的附加打印件的数量。