Question

这个专利是那个国家的？？？

在一篇文章中看到提及专利GB-A-2,140,160，请问这个专利在哪里可以找到？？GB-A-2代表什么。谢谢

Answer 1

楼主看到的号是否有误？如果楼主所说的的确是专利文献的话，一般GB是表示英国专利，后面一个-A-很奇特。现在能够查到的英国专利文献的正确标示号为GB2,140,160A，此处的A标示是公开文献的意思，当该专利文献授权公告时，A将变为B。该GB2,140,160A涉及一种流体移动感测装置（Apparatus for sensing the movement of a fluid），不知道是否与楼主看到的专利文献内容相符？该专利的说明书如附。

Answer 2

这是英国专利，GB是国家代码，A是专利文献种类代码，表示发明专利的公开。
请注意检索时在公开公告号中输入“GB2140160”，有很多检索专利的免费数据库都能检索到。例如：www.cnipr.com或http://www.sipo.gov.cn/zljsfl/

申请号:GB8314118A 申请日:1983.05.21
公开(公告)号:GB2140160(A) 公开(公告)日:1984.11.21
申请(专利权)人: THE * GENERAL ELECTRIC COMPANY PLC; GEN ELECTRIC CO PLC ;
分类号: G01P5/00; G01P5/24;
优先权:19830521 GB 8314118
摘要:A resonance cavity is formed by two parallel spaced discs (1, 2, Fig. 1). A transducer 7 sets up a standing wave in the cavity through which a gas, the flow of which is to be measured, may pass in all directions. The flow of the gas causes a phase shift in the standing wave, as measured by microphones 11 and 13, and 10 and 12. The phase difference of signals produced by microphones 11 and 13 gives an indication of the velocity component of the gas in the direction in which they are spaced, and similarly for the other pair of microphones 10 and 12. The velocity components are determined by multiplying the phase differences by the resonance frequency of phase-locked oscillator 18, which controls the transducer 7, in multiplier circuits 25 and 30. The resulting signals are applied to a display 31 which gives an indication of the speed and direction of the gas flow. In further embodiments a microprocessor is fed the outputs of the multiplier circuits so as to give separate fluid speed and direction read-outs, and the apparatus is extended to measure three-dimensional flows. The apparatus is useful in projectile aiming systems.