专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

121. 发明专利

JPH0926339A FLUIDIC FLOWMETER 失效
公开(公告)号：JPH0926339A
公开(公告)日：1997-01-28
申请号：JP19905295
申请日：1995-07-12
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , SATO SHINICHI
IPC分类号： G01F1/00 , G01F1/20 , G01F15/02
摘要： PROBLEM TO BE SOLVED: To enable an accurate zero-point correction of a flow velocity sensor even in a state where fluid is flowing, in a fluidic flowmeter commonly using the flow sensor. SOLUTION: In the flowmeter, when a flow rate is measured by using a fluidic element 30 and the flow rate is more than a specified threshold, that is, when only the element 30 is used to measure the flow rate, a flow sensor 19 provided in a passage 17 for flow sensor is subjected to zero-point correction, while the passage 17 is closed by a cutoff valve 22 for flow sensor.

122. 发明专利

JPH08285655A GAS METER 失效
公开(公告)号：JPH08285655A
公开(公告)日：1996-11-01
申请号：JP11784595
申请日：1995-04-19
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , KATO HIDEO , SATOU SOUBUN , SATO SHINICHI , OKAMURA SHIGENORI , KIMURA YUKIO
IPC分类号： G01F3/22 , G01F15/14 , G01F15/18
摘要： PURPOSE: To provide a gas meter which can be applied to both cases of upper mouthpiece fitting and lower mouthpiece fitting, prevent removal of a choking member, facilitate construction and is excellent in beauty. CONSTITUTION: A meter main body 10 is encased in a sealed case 20. The sealed case 20 is divided into two elements, a box-shaped first case structure 21 and a second case structure 22 fitted to an open part of the first case structure 21. In the case of fitting an upper mouthpiece, the lower surface 10b of the meter main body 10 is covered with the first case structure 21, and in the case of fitting a lower mouthpiece, the upper surface 10a of the meter main body 10 is covered with the first case structure 21, whereby one sealed case 20 can cope with both cases of upper mouthpiece fitting and lower mouthpiece fitting.

123. 发明专利

JPH08233645A SEISMOSCOPE 失效
公开(公告)号：JPH08233645A
公开(公告)日：1996-09-13
申请号：JP6496295
申请日：1995-02-28
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , KATO HIDEO , SAKAI KATSUTO , SATOU SAEMON , SATO SHINICHI
IPC分类号： G01V1/18 , G01H1/00
摘要： PURPOSE: To provide a seismoscope which easily change a mounting attitude of the seismoscope main body according to the mounting attitude of a body to be mounted such as circuit board. CONSTITUTION: A seismoscope is provided with a seismoscope main body 60A having a vibration sensing mechanism used in its horizontal state and a mounting support means 60B for supporting this seismoscope main body 60A. The mounting support means 60B is composed of a support part 20 for fixedly supporting the seismoscope main body 60A and a mount part 30 which is mounted on a circuit substrate and at the same time rotatably supports the support part 20. A bent angle formed by the mount part 30 and the support part 20 is adjusted so that a mount angle (mounting attitude) of the seismoscope main body 60A to the circuit board can be changed.

124. 发明专利

JPH08226834A CONTROL APPARATUS OF SHUTOFF VALVE FOR GAS METER 失效
公开(公告)号：JPH08226834A
公开(公告)日：1996-09-03
申请号：JP5672595
申请日：1995-02-21
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , SATO SHINICHI
IPC分类号： G01F1/00 , F16K17/36 , G01F1/20
摘要： PURPOSE: To provide a control apparatus which can reduce a change in the pressure of a gas while the power consumption of a gas meter is being reduced. CONSTITUTION: An irregularity judgment part 46 measures the cycle of output pulses from a waveform shaping circuit 43, it finds the maximum value and the minimum value of the cycle of the output pulses from the waveform shaping circuit 43 at a definite time, it regards their difference as an irregularity in the output of a piezoelectric membrane sensor, and it judges whether the irregularity in the output of the piezoelectric membrane sensor exceeds a prescribed value or not. When a gas is in a state 2 that it reaches a fluidic oscillation generation part without passing a pressure-change absorption mechanism, a shutoff-valve-drive judgment part 47 changes over the shutoff valve to a state that the gas passes the pressure-change absorption mechanism only when a flow rate is at a prescribed amount or lower and the irregularity in the output of the piezoelectric membrane sensor exceeds the prescribed value.

125. 发明专利

JPH08226833A CONTROL APPARATUS OF SHUTOFF VALVE FOR GAS METER 失效
公开(公告)号：JPH08226833A
公开(公告)日：1996-09-03
申请号：JP5672495
申请日：1995-02-21
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , SATO SHINICHI
IPC分类号： G01F1/00 , F16K17/36 , G01F1/20
摘要： PURPOSE: To provide a control apparatus which can reduce a change in the pressure of a gas while the power consumption of a gas meter is being reduced. CONSTITUTION: An irregularity judgment part 46 counts the number of output pulses of an A/D converter 41 whenever a flow sensor 30 is driven, it finds the maximum value and the minimum value of the number of output pulses of the A/D converter 41 at a definite time, it regards their difference as an irregularity in the output of the flow sensor, and it judges whether the irregularity in the output of the flow sensor exceeds a prescribed value or not. When a shutoff valve is in a state that a gas reaches a fluidic oscillation generation part without passing a pressure change absorption mechanism, a shutoff-valve- drive judgment part 47 changes over the shutoff valve to a state that the gas passes the pressure change absorption mechanism only when a flow rate is at a prescribed amount or lower and the irregularity in the output of the flow sensor exceeds the prescribed value.

126. 发明专利

JPH08219934A METHOD FOR DETECTING LEAKAGE OF GAS FROM GAS DUCT 失效
公开(公告)号：JPH08219934A
公开(公告)日：1996-08-30
申请号：JP2140595
申请日：1995-02-09
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , KATO HIDEO , SATOU SOUFUMI , SATO SHINICHI
IPC分类号： G01M3/00 , G01M3/28
摘要： PURPOSE: To obtain a method for detecting leakage of city gas in a service pipe without requiring any digging work of ground. CONSTITUTION: A gas meter 3 is provided with a pressure sensor 5 and installed on a leakless duct 2. The pressure sensor 5 measures the pressure difference when no gas flows through the duct and when gas flows through the duct and the measurement is stored along with the flow rate as initial values. Subsequently, the flow rate and the pressure difference are measured every time when the gas flows to be used for a gas apparatus. The pressure difference is subjected to flow rate correction and compared with the initial value thus detecting leakage of gas. Since leakage of gas from a duct coupling the gas meter 3 and a main or branch line 1 can be detected without requiring any digging work, manpower can be reduced and since leakage is monitored every time when the gas is used, safety is enhanced.

127. 发明专利

JPH08166283A FLUID VIBRATION DETECTING SENSOR AND FLUIDIC FLOW METER USING THE SAME 失效
公开(公告)号：JPH08166283A
公开(公告)日：1996-06-25
申请号：JP33252394
申请日：1994-12-13
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , SATO SHINICHI
IPC分类号： G01F1/20 , G01H11/02
摘要： PURPOSE: To prevent erroneous detection of fluid vibration due to corrosion by water, oil mist, etc., and provide a fluid vibration detecting sensor with improved detection precision. CONSTITUTION: Variable capacitors 40A, 40B are composed of movable electrodes 42 set in the center part of a vibrating film 35 and fixed electrodes 43 set on the opposite to the former electrodes. When differential pressure of two pressure chamber 33A, 33B; 34A, 34B alters, the movable electrodes 42 together with the vibrating film 35 are displaced following the alteration and repeatedly go closer to or part far from the fixed electrodes 43 and thus the electrostatic capacity between the movable electrodes and the fixed electrodes 43 alters. Based on the alteration of the electrostatic capacity, vibration of a fluid can be detected.

128. 发明专利

JPH08159827A FLOW MEASURING METHOD AND ITS DEVICE 失效
公开(公告)号：JPH08159827A
公开(公告)日：1996-06-21
申请号：JP29970694
申请日：1994-12-02
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , KATO HIDEO , SAKAI KATSUTO , SATOU SOUBUN , SATO SHINICHI
IPC分类号： G01F1/20
摘要： PURPOSE: To make the size of a flow meter as small as possible by arranging a vane on the downstream side from the jet nozzle of a fluid and detect buoyancy acting on the vane. CONSTITUTION: A vane 4 is set on the downstream side from a jet nozzle 3 formed in a flow meter main body 1. The both sides of the vane 4 are supported by support bodies 5, 5' which are not allowed to displace by the weight of the vane 4 itself and displaces by a stress when a buoyancy acts on the vane 4. A strain gauge 6 is fitted to the support bodies 5, 5'. A fluid to be measured is jetted out of the jet nozzle 3, and the buoyancy occurs on the vane 4 by the action of the jetting fluid so that its buoyancy acts on the support bodies 5, 5'. As the result, the support bodies are displaced, and a strain gauge 6 detects its displacement to be outputted according to distortion quantity. A flow quantity operator 8 computes the flow quantity based on the output from the strain gauge 6 to display the same on a display 9.

129. 发明专利

JPH08145759A FLOWMETER 失效
公开(公告)号：JPH08145759A
公开(公告)日：1996-06-07
申请号：JP31551194
申请日：1994-11-25
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , SATO SHINICHI
IPC分类号： G01F1/00 , G01F3/22 , G01F15/075 , G08C19/00
摘要： PURPOSE: To reduce the wasteful power consumption by the constant drive of a liquid crystal display part, and extend the life of a battery. CONSTITUTION: In a general state (the state in which an instruction button 42 is not pressed), the flow rate information (integrated flow rate) is not displayed on a liquid crystal display screen 41a. When the instruction button 42 is pressed, a drive signal is supplied from the instruction button 42 to a change- over switch driving circuit 42c. The change-over switch driving circuit 42c which received the drive signal holds a change-over switch 42b in the closed (ON) state for a prescribed time. Thus, the power from a battery 43 is supplied to a display part driving circuit 41b, and the flow rate information is displayed on the liquid crystal display screen 41a during it. After the lapse of the prescribed time, the change-over switch 42b is laid in the opened (OFF) state, and the power supply from the battery 34 is stopped to extinguish the display on the liquid crystal display screen 41a.

130. 发明专利

JPH0869594A METER READING DEVICE 失效
公开(公告)号：JPH0869594A
公开(公告)日：1996-03-12
申请号：JP20574194
申请日：1994-08-30
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , SATO SHINICHI
IPC分类号： G08C19/00
摘要： PURPOSE: To eliminate erroneous read and mis-input in the meter reading work of a gas meter or the like. CONSTITUTION: A conversion circuit 7 which converts an integrated value to an optical communication signal and an optical communication interface 8 are built in a meter 1, and an interface 13 which reads in the integrated value through the interface 8 on the meter 1 side and a memory 12 where read data is recorded are built in a meter reader 10, and the integrated value in the meter 10 is read in by the optical communication system, and this data is taken into a charge calculation center and is used as the base of charge calculation.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式