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    • 5. 发明申请
    • CONTINUOUS EXTRUSION APPARATUS
    • 连续挤出装置
    • WO1990014176A1
    • 1990-11-29
    • PCT/GB1990000778
    • 1990-05-18
    • BWE LIMITEDHAWKES, Daniel, JohnJONES, Phillip, AndrewANDERSON, Douglas, Edward
    • BWE LIMITED
    • B21C23/00
    • B21C23/005B21C23/085B21C25/00B21C33/006
    • Apparatus for the continuous extrusion of metals in which feed is introduced into two (or more) spaced apart circumferential grooves (4) in a rotating wheel (2) (or rotating wheels) to contact an arcuate shoe portion (8) and abutments extending into the grooves. The feed is constrained by the abutments to flow through frusto-conical exit apertures (10) in the shoe portion (8) to a chamber (6) and is extruded as relatively thin-walled, large cross-section, product. The exit apertures (10) have cone angles in the range 5°-45°. Mixer plates (14) are profiled to distribute flow evenly from the apertures (10) to around the die opening (30). An extrusion die body (18) for cylindrical extrusions is located and axially centered by set screws (122). Where an even number of grooves (4) are utilised, an extrusion mandrel (12) may be secured to the shoe portion (8) by a bolt (22) positioned centrally of the grooves. Lubricant or oxidation inhibiting fluids may be injected internally of the extruded product through a passage (36, 38) extending through the shoe portion (8) and the bolt (22). In another embodiment, the chamber (6) is also of divergent frusto-conical form having a cone angle corresponding to that of the apertures (10), thereby enabling the extrusion of even larger cross-section products. The frusto-conical form may be of elliptical cross-section to achieve a requisite divergence or to accord with the configuration of the die orifice. By providing spaced apart grooves (4) and apertures (10) diverging frusto-conically it is possible to extrude products of relatively large cross-section since the volume feed rate is enhanced and the distance travelled by the material from the grooves (4) to the die orifice (30) is reduced, thereby reducing friction losses and the likelihood of discontinuities in the extrudate arising.
    • 8. 发明申请
    • SYSTEM AND METHOD FOR PROVIDING A PUBLIC NUMBER-PRIVATE NUMBER TELEPHONY SYSTEM
    • 提供公共号私钥数电话系统的系统和方法
    • WO2007047580A2
    • 2007-04-26
    • PCT/US2006040368
    • 2006-10-13
    • PAGE2CELL INCNAGEL ROBERT HJONES PHILLIPWENER CLIFFORDREADICK JODD
    • NAGEL ROBERT HJONES PHILLIPWENER CLIFFORDREADICK JODD
    • H04M1/00
    • H04W12/02H04M3/42008
    • This invention shows a method for operating a voice communications network that comprises dynamically associating a private number with at least one public number of a circuit-switched voice communication network, authenticating a user of a private number without reliance on a static reproducible data code, receiving an incoming call to the public number and routing the incoming call from a caller to the private number. The method also shows the generation of an outgoing call from the private number and passing the outgoing call through the public number while generating calling party information to a target which preserves the privacy of the caller, and altering an associating of the private number and at least one public number. The system therefore acts as a proxy with authentication by means of dynamic code security. The caller and the user of the private number share seamless round-trip telephone communications while preserving the anonymity of the user of the private number. The system functionality is advantageously presented as a restricted option space defined by a "skin", which provides a consistent and purposeful set of functionality useful for a predetermined population of users.
    • 本发明示出了一种用于操作语音通信网络的方法,其包括将私人号码与电路交换语音通信网络的至少一个公开号码动态地关联,认证私人号码的用户而不依赖于静态可再现数据码,接收 来电到公开号码,并将来电从呼叫者路由到私人号码。 该方法还示出了从私人号码产生呼出呼叫,并通过公共号码传送呼出呼叫,同时向保护呼叫者隐私的目标产生主叫方信息,并改变私人号码的关联,并且至少 一个公开号码。 因此,系统通过动态代码安全性作为代理服务器进行身份验证。 呼叫者和私人号码的用户共享无缝往返电话通信,同时保持私人号码的用户的匿名。 系统功能有利地被呈现为由“皮肤”定义的受限选项空间,其提供对预定用户群体有用的一致且有目的的一组功能。