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41. 发明专利

JP2002082631A ALPHABET DISPLAY DEVICE FOR GAS METER 失效
公开(公告)号：JP2002082631A
公开(公告)日：2002-03-22
申请号：JP2000273900
申请日：2000-09-08
申请人： TOKYO GAS CO LTD , TOSHIBA CORP
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , KOMAKI MICHINORI , TASHIRO TAKESHI , UYAMA HIROTO , KON KAZUO , MAEDA IKUO , ISHINO HITOAKI , MORINAGA TAKESHI
IPC分类号： G01D7/00 , G09F9/30
摘要： PROBLEM TO BE SOLVED: To make it easier to decide alphabet characters while minimizing an increase in the number of segments. SOLUTION: An interpolation segment 1 is provided between segments positioned at the center part 3a of 14 segments and an interpolation segment 2 is provided between segments positioned at the right-end center part 3b similarly. Further, the tips of the segments which are adjacent to the interpolation segments 1 and 2 are made flat. The interpolation segment 1 is made to illuminate when an alphabet character whose line passes the center part 3a is displayed. The interpolation segment 2 is made to illuminate when an alphabet character whose line passes the right-end center part 3b like 'A' is displayed and made not to illuminate when an alphabet character whose line does not pass the right-end center part like 'B' is displayed.

42. 发明专利

JP2002078031A INTERFACE CIRCUIT 失效
公开(公告)号：JP2002078031A
公开(公告)日：2002-03-15
申请号：JP2000256001
申请日：2000-08-25
申请人： TOKYO GAS CO LTD , TOSHIBA CORP
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , KOMAKI MICHINORI , TASHIRO TAKESHI , UYAMA HIROTO , KON KAZUO , MAEDA IKUO , MORINAGA TAKESHI , ISHINO HITOAKI
IPC分类号： H03K17/78 , H04L25/02 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To provide an interface circuit that can reduce the power consumption even when a communication speed is increased. SOLUTION: In the case of transmission from a terminal 1, a control section (not shown) of the terminal 1 switches a switching transistor(TR) 21 to a position of transmission, a communication signal (transmission) is given to one input terminal of an AND circuit 13, a pulse from a pulse generator 11 is given to the other input terminal of the AND circuit 13 which modulates the communication signal (transmission) with the pulse signal, a switching TR 17 is turned on/off corresponding to the pulse signal, a current flows in a direction of It in response to the ON/OFF operation to supply the current to a pulse demodulator 43 of a communication unit 3 via a photocoupler 53. The pulse demodulator 43 demodulates the original signal.

43. 发明专利

JP2001281018A FLOW-RATE MEASURING DEVICE AND GAS METER 失效
公开(公告)号：JP2001281018A
公开(公告)日：2001-10-10
申请号：JP2000099500
申请日：2000-03-31
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , KOMAKI MICHINORI , TASHIRO TAKESHI
IPC分类号： G01F1/00 , G01F3/22 , G01F7/00
摘要： PROBLEM TO BE SOLVED: To provide a flow-rate measuring device, such as a gas meter in which an overlap region is set and which eliminates drop in its measuring accuracy or the generation of the mixture of a noise or the like, even when a pulsating flow, a flow-rate change or the like is generated in a fluid to be measured. SOLUTION: A measurement control part 4 changes the upper limit and the lower limit of the overlap region, so that they become the upper limit or higher or the lower limit or lower than the pulsating flow or the flow-rate change, when the upper limit (indicated as Wh in the figure) of the pulsating flow or the flow-rate change is at the upper limit of lower than the practically measurable region of a low flow-rate sensor 1, and when the lower limit of the pulsating flow or the flow-rate change is at the lower limit or higher than the practically measurable region of a high flow-rate sensor 2. When it is detected by a pulsating flow and change detection part 3 that the pulsating flow, the flow-rate change or the like is not generated, a measurement control rule itself is changed over, in such a way that a flow rate is measured on the basis of the measurement control rule, which is set in advance so as to be executed inside the overlapped region.

44. 发明专利

JP2001174297A FLOW RATE MEASURING METHOD AND DEVICE 失效
公开(公告)号：JP2001174297A
公开(公告)日：2001-06-29
申请号：JP36098099
申请日：1999-12-20
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , KOMAKI MICHINORI , KOBAYASHI KENCHI , TASHIRO TAKESHI , YUASA KENICHIRO
IPC分类号： G01F1/00 , G01F1/72 , G01F3/22 , G01F15/04
摘要： PROBLEM TO BE SOLVED: To provide a gas flow rate measuring method and measuring device, capable of obtaining exact flow rate without mixing errors caused by a pulsation, even if it is caused in a gas flow and causing the increase of consumption power. SOLUTION: In a flow rate measuring device such as a gas flowmeter, gas pressure, in which consumption power is smaller than is necessary in measuring gas flow velocity, is often measured using a gas pressure measuring device 200, without having to increase the consumption power. Time differential P' per unit time of pressure value P in pulsation caused in the gas flow is obtained, and based on the pressure P' the error δv contained in the gas flow velocity v is calculated. With a measured error correction circuit 300, an error δv is added to or subtracted from a gas flow velocity v to correct the error in the gas flow velocity value v, and eventually a gas flow rate value with a small error is obtained.

45. 发明专利

JP2000088353A DETECTOR FOR CLOGGING OF FILTER OF HOT AIR HEATER 失效
公开(公告)号：JP2000088353A
公开(公告)日：2000-03-31
申请号：JP25513398
申请日：1998-09-09
申请人： TOKYO GAS CO LTD
发明人： NISHINO MITSUSHIGE , NUKUI KAZUMITSU , TASHIRO TAKESHI
IPC分类号： F04D17/04 , F04D29/70 , F24H3/04
摘要： PROBLEM TO BE SOLVED: To provide a detector for clogging of a filter of a hot air heater capable of precisely and rapidly detecting the clogging of the filter. SOLUTION: A differential pressure sensor 41 is fixed to the inside of a filter 21 adjacently to the filter 21. One vent hole 41a of the differential pressure sensor 41 communicates with outside air and the other vent hole 41b is opened to the inside of a gas fan heater. When the filter is clogged, differential pressure higher than that during an ordinary operation is generated between the inside and the outside of the gas fan heater. When the differential pressure exceeds a set value, it is decided that the filter is clogged to close a first shut-off solenoid valve and a second shut-off solenoid valve and stop the combustion of a main burner. The relation between the set value and the clogging is experimentally previously measured, so that the set value can be properly set.

46. 发明专利

JP2000074717A Device and method for monitoring abnormality in pressure and gas meter 审中-公开
标题翻译：用于监测压力和气体表中异常的装置和方法
公开(公告)号：JP2000074717A
公开(公告)日：2000-03-14
申请号：JP24798898
申请日：1998-09-02
申请人： Tokyo Gas Co Ltd , 東京瓦斯株式会社
发明人： NUKUI KAZUMITSU , KOMAKI MICHINORI , TASHIRO TAKESHI
IPC分类号： G01F1/00 , G01F3/22 , G01L7/00 , G05D7/06 , G05D16/06
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of leakage from a pipeline by monitoring the occurrence of an abnormal pressure in the pipeline while the pipeline is maintained in a shut-off state.
SOLUTION: A control section 20 judges whether or not an abnormal pressure has occurred in a pipeline 2 based on the detecting signal of a pressure sensor 15 and maintains the pressure in the pipeline 2 at normal value while the pipeline 2 is maintained in a shut-off state by controlling a shut-off valve 13 in accordance with the discriminated results. When, for example, the control section 20 judges that an abnormal pressure exceeding a prescribed range occurs in the pipeline 2, the section 20 controls the valve 13 to temporarily open the flow passage in the pipeline 2. When the section 20 judges that an abrupt pressure drop occurs in the pipeline 2 based on the detecting signal of the sensor 15, the section 20 discriminates that leakage occurs on the pipeline 2, informs the host computer 30a of a command center 30 of it, and controls the shut-off value 13 so as to maintain the flow passage in the pipeline 2 in a shut-off state.
COPYRIGHT: (C)2000,JPO
摘要翻译：要解决的问题：通过在管道保持关闭状态期间监视管道中的异常压力的发生来防止管道发生泄漏。解决方案：控制部分20基于压力传感器15的检测信号来判断管道2中是否发生异常压力，并将管道2中的压力保持在正常值，同时将管道2保持在关闭状态，通过根据所识别的结果控制截止阀13来关闭状态。例如，当控制部20判断为在管路2中出现超过规定范围的异常压力时，部分20控制阀13暂时打开管道2中的流路。当部分20判断为突然基于传感器15的检测信号在管线2中发生压降，部分20判断出管线2发生泄漏，向主机30a通知其指令中心30，并控制关断值13 从而将管路2中的流路保持在切断状态。

47. 发明专利

JPH11248503A FLOW METER AND GAS METER 失效
公开(公告)号：JPH11248503A
公开(公告)日：1999-09-17
申请号：JP4772198
申请日：1998-02-27
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , TASHIRO TAKESHI
IPC分类号： G01F1/68 , G01F1/00
摘要： PROBLEM TO BE SOLVED: To be at low price and simultaneously enlarge a measuring range of a flow rate. SOLUTION: A flow speed sensor 11 outputs a signal corresponding to a mass flow rate of a gas 10 to a flow rate calculation part 13. A volumetric flow meter 12 outputs a signal corresponding to a volumetric flow rate of the gas 10 to a flow rate calculation part 13. The flow rate calculation part 13 replaces the volumetric flow rate with the mass flow rate as occasion demands based on measuring results of the flow rate sensor 11 and measuring results of the volumetric flow meter 12, and calculates a flow rate value unifying flow rate unit referencing one of the mass flow rate and the volumetric flow rate in all measuring areas to output it to a display part 3.

48. 发明专利

JPH11248499A TURBINE ACTUATED FLOWMETER, MEASURING METHOD THEREOF, AND TURBINE ACTUATED GAS METER 失效
公开(公告)号：JPH11248499A
公开(公告)日：1999-09-17
申请号：JP5551198
申请日：1998-03-06
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , TASHIRO TAKESHI
IPC分类号： G01F1/115 , G01F1/12 , G01F3/22 , G01F15/075
摘要： PROBLEM TO BE SOLVED: To provide a turbine actuated flowmeter that can accurately measure the flow rate of fluid without a measurement error even when the flow rate of the fluid such as gas is changed. SOLUTION: In a turbine actuated flowmeter being provided with an impeller for rotating at speed corresponding to the flow rate of fluid and a pick-up device for outputting a pulse signal with a frequency corresponding to the rotation of the impeller, a flow rate calculation part 32 of a measuring part 30 performs calculation for converting a pulse count value obtained by a pulse counter 31 into the flow rate and outputs a turbine flow rate 36. A calculation part 331 of a flow rate integration part 33 integrates the turbine flow rate 36 for obtaining an integration flow rate 37. When an actual flow rate change detection signal 38 is inputted from an actual flow rate change detection part 35, the calculation part 331 judges that the flow rate of the fluid is changed. After that, the calculation part 331 does not immediately integrate the flow rate, waits for the settlement of the turbine flow rate 36, and integrates the flow rate retroactively to a point a of time when the flow rate is changed. A measuring error caused by the rotation inertia of the impeller can be eliminated.

49. 发明专利

JPH11190649A FLOW METER AND GAS METER 失效
公开(公告)号：JPH11190649A
公开(公告)日：1999-07-13
申请号：JP36006697
申请日：1997-12-26
申请人： TOKYO GAS CO LTD , TAKENAKA SEISAKUSHO CO LTD
发明人： NUKUI KAZUMITSU , KATO HIDEO , TASHIRO TAKESHI , MATSUSHITA MASAHIKO , YAMADA KAZUHIRO
IPC分类号： G01F1/00 , G01F1/68 , G01F1/684 , G01F1/69 , G01F3/22
摘要： PROBLEM TO BE SOLVED: To provide a flow meter and a gas meter that can measure a flow rate in a wide flow rate range. SOLUTION: Gas 10 reaching a shielding member 3 provided at the center part of a passage is led to the wall surface side of piping 1 by the action of the shielding member 3. At this time, the gas 10 is led to the wall surface side of the piping in such a way as to increase its flow velocity toward flow velocity sensors 2a, 2b fitted to the wall surface of the piping 1. The flow velocity sensors 2a, 2b output signals corresponding to the flow velocity of the gas 10 increased by the shielding member 3, in the respective fitted positions of the sensors. A flow rate computing part computes a flow rate and an integrated flow rate on the basis of the average value of flow velocity obtained on the basis of the respective output signals of the flow velocity sensors 2a, 2b. Since the flow rate of the gas 10 is thus computed on the basis of the output signals of the flow velocity sensors 2a, 2b outputted according to the increased flow velocity of the gas 10, the flow rate can be measured in a wide flow rate range from a micro flow rate area to a large flow rate area.

50. 发明专利

JP2004249158A Non-excavation lining method for piping 审中-公开
公开(公告)号：JP2004249158A
公开(公告)日：2004-09-09
申请号：JP2003039576
申请日：2003-02-18
申请人： Tokyo Gas Co Ltd , 東京瓦斯株式会社
发明人： SHIGEFUJI TAKASHI , ITAGAKI MASAAKI , TASHIRO TAKESHI
IPC分类号： F16L55/10 , B05D7/22
摘要： PROBLEM TO BE SOLVED: To provide a method which can all together line a supply pipe having branch pipes. SOLUTION: A non-excavation lining method for piping includes a first process of dividing a main pipe 1 into a road side main pipe 1b and a site side main pipe 1a, a second process of pressure-feeding a lining means 3 to a branch pipe 9a, a third process of air stream transfer-lining the inner surface of a branch pipe 8a, a fourth process of lining the inner surface of the side main pipe 1a when the lining means 3 is returned to a main pipe opening 1d by pressure-feeding from a branch pipe 9a opening, a fifth process of air stream transfer-lining the branch pipe 9a, a sixth process of removing the blocking of a main pipe branch part produced in the fourth process, and a seventh process of liquid phase-lining the road side main pipe 1, and the entire supply pipe 1 is lined. COPYRIGHT: (C)2004,JPO&NCIPI

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